Physical Science Day Starters

1. Physical Science Day Starters

2. 5 Question Quiz. You are going to do an experiment on plants. You plant 12 beans. You give them all 10 mL of water each day, but to six of them you add 2 mL of acetic acid. The independent variable is The acetic acid d. The second six bean plants The 10 mL of water e. The growth of the beans with the acid The dependent variable is The acetic acid c. The second six bean plants b. The 10 mL of water d. The grown of the beans with the acid The control is The acetic acid c. The growth of the beans without acid The growth of the beans with the acid d. The dirt the beans grow in The constant is The acetic acid c. The growth of the beans without the acid The growth of the beans with the acid d. The dirt the beans grow in A bias is When one side wins the argument c. A preconceived notion A poorly done experiment d. An experiment with two variables

3. 5 Question Quiz. Use Same Side, Start at 6. On a line graph, time goes on the "y" axis c. "x" axis Where it fits best d. Time is rarely on a line graph To show the number of units of various types, one would probably use Line graph c. Scatter graph Bar graph d. Pie graph How many grams are their in a kilogram" 10 c. 100 1,000 d. 1,000,000 Time will generally be a Constant c. Independent variable Dependent variable d. Control During a fire drill Move in an orderly manner, out the door c. Sit paralyzed by fear and indecision Run as fast as you can. Some one has to be first!!! D. Don't worry, it's just a drill When thinking of the rules and procedures in this room, Don't worry. Mr. Monroe is an understanding type c. Worry. Mr.. Monroe is just evil. Follow them, and you don't need to worry d. Always test them to see if Mr.. Monroe means it.

4. 5 Question Quiz. Use Blue Side, Start at 17. On a line graph, the dependent variable goes on the "y" axis c. "x" axis Where it fits best d. Dependent variables are used on bar charts To show the percentage of various types, one would probably use Line graph c. Scatter graph Bar graph d. Pie graph How many meters are there in one millimeter? .1 c. .001 .01 d. .0001 When plotting temperature and time, temperature would probably be what? Constant c. Independent variable Dependent variable d. Control A scientific law is what? No longer even tested c. Irrefutable Really nothing more than a good idea D. Always gives accurate results during testing How many degrees on a pie chart would be shown for 125 Chihuahuas, out of a total of 989 dogs? _______________________________________

5. Two Question Quiz. How meters are there in 68.4 feet? _______________________________________ What is the volume of a box that measures 55.4 cm x 26.9 cm x 98.2 cm? ________________________________________

6. Two Question Quiz. What is the volume of a box that measures 55.4 cm x 26.9 cm x 98.2 cm? 55.4 cm x 26.9 cm x 98.2 cm = 146,344 cm3

7. What changes with the alteration of the independent variable? • a. Control c. Dependent variable • b. Constant d. Bias • What goes on the “x” axis? • a. Control c. Dependent variable • b. Constant d. Independent variable • What is the formula for density? • a. Mass x Volume c. Volume ÷ Mass • b. Mass ÷ Volume d. Volume – Mass • What is the formula for average speed? • a. Distance x Time c. Distance ÷ Time • b. Time ÷ Distance d. Distance – Time • The scientific unit of measurement for temperature is • a. Celsius or Centigrade “ºC” c. Fahrenheit “ºF” • b. Kelvins or “K” d. Ohms or “h”

8. On a line graph, the dependent variable goes on the "y" axis c. "x" axis Where it fits best d. Dependent variables are used on bar charts To show the percentage of various types, one would probably use Line graph c. Scatter graph Bar graph d. Pie graph How many meters are there in one millimeter? .1 c. .001 .01 d. .0001 When plotting temperature and time, temperature would probably be what? Constant c. Independent variable Dependent variable d. Control A scientific law is what? No longer even tested c. Irrefutable Really nothing more than a good idea D. Always gives accurate results during testing How many degrees on a pie chart would be shown for 125 Chihuahuas, out of a total of 989 dogs? 45.5%

9. Displacement can be Sometimes larger than distance c. Sometimes shorter than distance Equal to or less than distance d. Equal to or more than distance Velocity Includes stopping c. Includes direction Is found with speed d. Is speed AND time To determine speed, a reference point Is always needed c. Can change Is helpful, not ALWAYS needed d. Is needed twice The steepness of the slope on a time/distance graph will indicate Speed c. Velocity Time d. Distance A negative slope on a displacement/time graph will indicate Slowing down c. Coming home Speeding up d. Changing speed

10. In what segment is the movement the slowest? ________________________ In what segment is the movement the fastest? _________________________ In what segment is there no movement? __________________________ DISTANCE D B C A Time

11. In what segment is there constant speed? ________________________ In what segment is the acceleration the fastest? _________________________ In what segment is there no movement? __________________________ Speed D B C A Time

12. A car accelerates from 3.5 m/s to 8.9 m/s in 17.8 seconds. What is its rate of acceleration? • 0.30 m/s c. 0.30 m/s2 • 2.0 m/s/s d. -5.4 m/s/s • A car traveled for 2.3 hours at an average rate of 45.7 miles per hour. How far did it travel? • 19.9 miles per hour c. 19.9 miles • 105.1 miles d. 90.6 miles • A spaceship is accelerating at a rate of .75 m/s/s. It accelerates for 1,245 seconds. What is its final speed? • a. 1,660.0 m/s c. 1,660 m/s/s • 933.8 m/s/s d. 933.8 m/s • A spaceship is accelerating at a rate of .5 m/s/s. It accelerates for 5.6 minutes. What is its final speed in standard SI units? • 2.8 m/min c. 11.2 m/s • 9,990 m/s d. 168 m/s

13. Displacement can be? • More than distance c. Equal to distance • Less than distance d. Equal or less than distance • Force is dependent upon? • Acceleration c. Power • Mass and velocity d. Mass and acceleration • What is the net force acting on a 7-kg object, moving at 4.5 m/s? • 1.55 Newtons c. 11.5 Newtons • 31.5 Newtons d. 0 Newtons • If a string is being swung in a clockwise direction, and it breaks in the position shown, what will happen to the ball? • It will go to the upper right, straight, and will slow down • It will curl to the right and “up”, at the same speed • It will go to the upper right at a constant speed • It will go to the upper left and up at a decreasing speed • Gravity is determined by • Mass • Distance • Mass and velocity • Distance and mass

14. 1. Newtons is a? • Measure of weight c. Measure of force • Measure of mass d. “a” and “c” • 2. Gravitational force is dependent upon what? • Mass c. Distance • Weight d. Mass and Distance • 3. What has more force of gravity? • A car c. Force of gravity is the same • A tricycle d. Gravity has no force, only mass does • 4. What does a horizontal line on a distance/time graph mean? • Constant acceleration c. Constant speed • No motion d. Instantaneous movement • 5. If a ball is swinging on the end of a string, and the string breaks, what will be the motion of the ball? • In a direction of a line tangent to the circle, with constant speed • In a curling direction, similar but farther away from the circle of the ball and string • In a direction of a line tangent to the circle, with decreasing speed • In a direction straight away from the circle, with a constant speed

15. Calculate the speed of an object that moves 345.1 meters in 4.6 seconds. Calculate the acceleration of an object that has a mass of 34.7 kilograms, and is being pushed with a force of 23.4 Newtons? How far will a rock fall, in Earth gravity, in 33.6 seconds? How fast will an accelerating object be moving in 46.8 seconds, if it is accelerating at a constant rate of 1.3 meters per second per second?

16. Motion is a change in ____. a. time c. velocity b. speed d. position The relationship among speed, distance, and time is ____. a. t = s/d c. s = dt b. d = t/s d. s = d/t If you ride your bike up a hill, then ride down the other side, your acceleration is ____. a. all positive c. first positive, then negative b. all negative d. first negative, then positive For any object, the greater the force that's applied to it, the greater its ____ will be. a. acceleration c. inertia b. gravity d. velocity The unit of momentum is ____. a. kg x m c. kg x m/s2 kg x m/s d. m/s2

17. A ball attached to a string is being swung in a clockwise circular path as shown in Figure 3-1. Assume the string breaks at point A. In which direction will the ball be traveling an instant later? a. direction a c. direction c b. direction b d. direction d A ball falls from a certain height, on Earth, for a time of 35.0 seconds. What is the distance that it has fallen from? There is no air resistance. Show your work for credit, and round all answers to one decimal place. A traveler moves exactly north 5.0 kilometers, then east exactly 6.0 kilometers. The traveler did all this in 7.0 minutes. What is the average velocity of the traveler in km/min? Show your work for credit, show to one decimal place.

18. A force is • a. A push or a pull c. Something that causes change • b. Gravity d. The opposite of a pull • An object is being accelerated at 35 m/s/s. The force being applied is 17.5 Newtons. What is the mass of the object? • a. 17.5 kilograms c. .5 kilograms • b. 2 kilograms d. 42.5 kilograms • Gravity is dependent upon what? • a. Mass c. Distance • b. Mass and Distance d. Distance divided by mass • Weight is mass • a. Times gravity c. Divided by gravity • b. And nothing else d. On Earth • A meter is about • a. One foot c. One yard • b. One mile d. What is a meter? • Mr. Monroe most resembles • a. A grandfatherly guy c. Santa • b. A demented dictator d. Evil incarnate

19. Energy is what/ • a. The change in something c. The ability to cause change • b. How far something moves d. How fast times how far something moves • Energy is measured in what? • a. Kilograms c. Ergs • b. “P” d. “J” • What is the formula for kinetic energy? • a. KE = mass x velocity c. KE = mass x velocity2 • b. KE = 2mass x velocity d. KE = ½ mass x velocity2 • Einstein said that E=mc2. What does “c” stand for? • a. Meters c. Kilometers per second • b. Metors per second d. Kinetic energy • Which has more kinetic energy; a 12-kg ball moving at 34 m/s, or a 34-kg ball moving at 12 m/s? • a. 12-kg ball c. 34-kg ball • b. They have the same kinetic energy d. Can’t tell

20. Energy is what/ • a. The change in something c. The ability to cause change • b. How far something moves d. How fast times how far something moves • Energy is measured in what? • a. Kilograms c. Ergs • b. “P” d. “J” • What is the formula for kinetic energy? • a. KE = mass x velocity c. KE = mass x velocity2 • b. KE = 2mass x velocity d. KE = ½ mass x velocity2 • Einstein said that E=mc2. What does “c” stand for? • a. Meters c. Kilometers per second • b. Metors per second d. Kinetic energy • Which has more kinetic energy; a 12-kg ball moving at 34 m/s, or a 34-kg ball moving at 12 m/s? • a. 12-kg ball c. 34-kg ball • b. They have the same kinetic energy d. Can’t tell • a. ½ 12 x 342 = 6,936J • b. ½ 34 x 122 = 2,448J

21. To find gravitational potential energy, one must determine • Height, mass and 9.8 m/s/s c. Height, mass and acceleration of gravity • Mass, energy and acceleration of gravity d. Mass, energy and 9.8 m/s/s • Potential Energy is • Energy of movement c. Energy of position • Energy not yet created d. Lost Kinetic Energy • The formula for Kinetic Energy is • ½ mass x velocity c. Mass by ½ velocity • ½ mass x velocity2 d. Mass x velocity x acceleration of gravity • The factors that determine the force of gravity are • Mass and acceleration c. Mass and distance between objects • Velocity and mass of objects d. Mass and energy of objects • What is the MECHANICAL energy of a 3.5-kg object, moving in a horizontal motion, at 2.5 m/s, 4.0 meters above the surface of Earth. • (This one looks a LOT harder than it really is. Isolate the important parts of the problem, and solve it piece by piece.) • You are at the top of a 25.0 meter slide. This slide has NO friction or air resistance. Your mass is 75.0-kg. What will be your speed when you get to the bottom. (Again, don’t try to solve the entire problem in one step. Break it in to pieces.)

22. 1. During movement, what can one say about energy • It will ALWAYS be lost to friction c. It will NEVER be lost to friction • It May be lost to friction d. One cannot tell with this information • 2. If a person is falling from an airplane, without any frictions, what is true? • He will have no mass c. He will slow down • He will have no weight d. He will find terminal velocity at some point • 3. Energy comes to the Earth in the form of • Chemical energy c. Radiant energy • Nuclear energy d. Potential energy • 4. If a person pushes on a wall, but the wall does not move, is there any energy being used? • No c. Yes • One cannot tell with this information d. Potential energy is being stored • 5. What kind of reaction happens in the Sun? • Fission c. Combustion • Fusion d. Potential • 6. What is the Gravitational Potential Energy of a ball that has a mass of 10-kg, is 10-m above a planet with a gravitational acceleration of 10 meters/second/second? • a. 10 Joules c. 100 Joules • b. 1,000 Joules d. 10,000 Joules • 7. What is the Kinetic energy of a 10-kg ball, moving horizontally at 10 meters per second? • a. 20 Joules c. 10 Joules • b. 500 Joules d. 50 Joules • 8. What is the mechanical energy, if #5 and #6 are the SAME ball?

23. Specific heat is • An exact measurement c. The name of a concept • Another name for a Joule d. 4.186 • “Q” equals • 4.186 Joules c. mass • Change in Temp • “C” • Kilograms • mass d. mass • Joules • Heat is • The temperature outside c. The average kinetic energy of atoms in a mass • The movement of energy d. The ABILITY of thermal energy to move • If one pours ½ of the coffee (why one would waste a national treasure I do not know) out of a cup: • The thermal energy left in the cup is lowered, but temp is not c. Thermal energy and temperature are lowered • Temperature is lowered, thermal energy is not d. Energy is destroyed • To change ºC to “K”, one must • Convince ºC that change is good and needed c. Add 273 • Add 100 d. Do nothing, they are the same thing • Water is held in a container 300 meters in the air. The water is allowed to fall THROUGH A WELL INSULATED PIPE. The velocity of the water flow is not changed in any way. What can be said in truth? • The water’s temperature will rise, but not the thermal energy c. The temp will rise, but not the thermal energy • The temperature and thermal energy will rise d. The water’s energy will not change in any way

24. Conduction is • Heat transfer through the direct contact of particles c. Heat transfer through electromagnetic waves • Heat transfer through the movement of matter itself d. The amount of energy in some matter • Which type of heat transfer would be used, for the energy getting to Earth from the Sun? • Conduction c. Convection • Radiation d. Inversion • Which type of metal would heat up faster; a metal with a high specific heat, or a metal with a low specific heat • Metal with a high specific heat c. Metal with a low specific heat • They would heat up at the same rate d. It depends upon the type of heating device

25. Hot air rises. What type of heat/energy transfer is this? • Conduction c. Radiation • Convection d. Specific • 27. You put your hand on a hot electric burner. What is this? • Conduction c. Radiation • Convection d. Specific • 28. What is static electricity most like? • Kinetic energy c. Potential energy • Gravitational energy d. Nuclear energy • 29. What is the law of conservation of energy? • Energy cannot be created c.Energy can’t be destroyed • Energy can’t be created or destroyed. d. Don’t waste it • 30. A cliff diver, who is about to jump, has • Mostly kinetic energy c. Mostly potential energy • Equal amount of K.E. & P.E. d. Neither K.E. nor P.E.

26. How much kinetic energy does an object with a mass of 1 kilogram traveling in a straight line have if it travels at 10 m/s? (A) 10 J (B) 50 J (C) 98 J (D) 490 J (E) 980 J As a cannonball is fired straight up into the air, there is an increase in its ___. (A) gravitational potential energy (C) chemical potential energy (B) mechanical energy (D) kinetic energy Which of the following is the best example of the law of conservation of energy? (A) Friction produces thermal energy. (C) The total amount of energy is constant. (B) People do not conserve energy. (D) Energy is the ability to cause change. Aluminum has a specific heat capacity of 0.900, and copper has a specific heat capacity of 0.386. If equal masses of aluminum and copper wire are placed in a flame, which one will require more energy to raise its temperature by 1C? (A) aluminum (B) copper (C) both will increase at the same rate Which has more total thermal energy – a bathtub of cold water or a red-hot nail? (A) The bathtub of cold water (C) They both possess equal thermal energy. (B) A red-hot nail (D) One cannot tell with the given information.

27. There are four forces in nature. Place them in order from strongest to weakest. _____________ _____________ _____________ __________ The force that holds protons against other protons in the nucleus of an atom is which force? ____________________ The force that keeps protons from turning into neutrons, and also neutrons from turning into protons, is which force? It is the __________________________. The atomic mass of Helium is what? Look in your book. What is the atomic number of Thorium? How many neutrons does Polonium have?

28. A circuit that can carry an electrical current is what? • Closed c. Open • Complete d. Energized • Ohm’s law states that as you lower resistance, the amps will do what? • His law is Amps = Voltage ÷ Resistance • Fall c. Remain the same • Rise d. Alter the voltage • The standard voltage in an American home is • 120 volts, direct current c. 120 volts, alternating current • 100 volts, alternating current d. 240 volts • What is the purpose of a fuse? • It stops voltage from rising to unsafe levels c. It resists current transmission • It prevents unsafe levels of amperes. d. It raises voltage levels • The inside of a thermos bottle slows heat loss by • Being filled with Nitrogen c. Being a vacuum • Being painted Black d. Having a positive electrical charge

29. Which of these ways, that heat can move, involves the movement of the material itself? • a. Conduction c. Convection • b. Radiation d. Conservation • Through which material(s) would convection work best? • a. Gas and solids c. Gas and liquids • b. Solids and liquids d. Liquids and solids • How does heat and energy get to us, from the Sun? • a. Conduction c. Convection • b. Radiation d. Conservation • What does an insulator do? • a. Slows the movement of something c. Speeds the movement of something • b. Makes something hotter d. Makes things cooler • Which of these is a good CONDUCTOR of heat (or electricity) • a. Aluminum c. Rubber • b. Air d. Wood • If I have a 16-kg mass (of something), and it goes from 556K to 600K, how much energy did I put into it, if it has a specific heat of 700? • a. 60-J d. 16-J • b. 492,800-J e. 720-J • c. .99-J f. 11,200-J

30. The wave characteristic that indicates energy is • Amplitude c. Wave height • Wave length d. Wave frequency • Hz is a unit of • Amplitude c. Wave height • Wave length d. Wave frequency • The speed of light, in a vacuum, is • 3,000,000 m/s c. 300,000,000 m/s/s • 300,000,000 m/s d. 300,000 km/s • Both b and d f. Both b and c • If a wave frequency is 45 Hz, and the wave length is 456 meters, what is the speed of the wave? • A water wave is • Compressional d. Longitudinal • Transverse e. “a” and “c” • All of the above • Places of compression on a longitudinal wave are a • Crest c. Trough • Rest position d. Wave height

31. The Atomic number (in a neutrally charged atom) is the same as • The number of protons c. The number of electrons • The number of neutrons d. Both “a” and “c” • When an atom is “split”, which force is effected? • The weak nuclear force c. The strong nuclear force • The electromagnetic force d. Both “a” and “c” • What is the difference between Carbon-14 and Nitrogen-14? • The number of protons c. The number of neutrons • The number of both protons and neutrons d. There is no difference • Pb has an atomic number of 82, and an atomic mass of 214. How many neutrons does it have? • 132 c. 214 • 82 d. 296 • The effect of the weak nuclear force is to …… • Prevent neutrons and protons from changing into each other • Keep protons from pushing away from each other • Keep electrons from crashing into the nucleus of the atom • Hold back gravity.

32. If an equal amount of energy is added to both ICE and WATER, • a. Ice will heat up, but heat up less c. Water will heat up, Ice will not • b. Ice will not heat up, water will d. Neither water, nor ice, will heat up • Which will absorb significantly (a lot) more heat before it changes? • a. Ice c. Water • b. They will absorb the same amount d. We cannot tell with this information. • Why did the hot water, in your experiment, stop heating at around 90º C? • a. Water can’t get hotter than 90º C c. Water can’t absorb any more energy • b. The steam carried away energy d. Why should I care? • The force that stops the atom from blowing itself apart is • a. Electromagnetic force c. Weak nuclear force • b. Strong nuclear force d. Gravity • An isotope is • a. Atoms with different numbers of protons • b. Atoms with different numbers of electrons • c. Atoms with different numbers of neutrons • d. Atoms with an electric charge

33. When a liquid turns to a solid, energy is • Absorbed c. Released • Unchanged d. Destroyed • A state of matter with charged particles is • Isotopes c. Restatends • Ions d. Plasma • The Kinetic theory states that all particles • Have charge c. Have movement • Have no charge d. Both “a” and “b” • When a solid turns to a liquid, it is the • Heat of fusion c. Heat of liquidization • Heat of vaporization d. Heat of ionization • 5. H2O is “special” because it • Is a liquid in solid form c. Has heat of vaporization • Becomes larger when frozen d. Has a specific geometric pattern • when in solid form.

34. If one keeps temperature constant, and raises pressure, volume will • Remain unchanged c. Become lower • Cry like a baby d. Rise • If volume is unchanged, and temperature is increased, pressure will • Rise c. Run away • Remain unchanged d. Fall • If volume is increased, and temperature is unchanged, pressure will • Fall c. Be as scared as an LSW player at an LSE game • Rise d. Remain unchanged • An airliner flying, at its maximum flying altitude, is above about • 25% of the atmosphere c. 50% of the atmosphere • 90% of the atmosphere d. What is an airliner? • What is atmospheric air pressure • 101.3 kPa d. 101.3 pascals • 101,300 pascals e. Both a,b • 14.7 lbs/in2 f. All a,b and c

35. The Tyndall effect works mostly on • Solutions c. Colloids • Elements d. Compounds • Carbon dioxide would be • Element c. Compound • Mixture d. Colloid • Air is a • Pure substance d. Element • Homogeneous mixture e. All the above, except d • Solution f. All the above, except a, d and e • Boiling and condensation is used in the process of • Decanting c. Reverse osmosis • Distillation d. Crystallization • A particle in suspension will • Remain floating in a liquid c. Settle after a reasonable time • Be unseen by the naked eye d. Dissolve in a reasonable time

36. A chemical change is • a. Boiling water c. Burning paper • b. Melting wax d. Expanding air • The kinetic theory says that all particles • Have a charge c. Constantly move • Have anger issues d. Have protons • If pressure is increased, temperature is not changed, volume will • Increase c. Decrease • Not change d. Not enough information • Water is weird because • When it freezes it becomes less dense • When it freezes it forms crystals • When it freezes it heats up • It freezes at 173 Kelvin • Which of the following is a physical change? • A lit flashlight • A digesting stomach • A rock falling • Burning candle wax

37. GAS LAW PROBLEM You have a balloon, that is free to expand. It has a volume of 3.4 liters, a pressure of 103.0 kPa and a temperature of 22.1ºC. You squeeze the balloon to a volume of .3 liters, without changing the temperature. What is the new pressure?