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GRCRT Science Review

GRCRT Science Review. You’ve Come to the Right Place!. On the Lighter Side…. Questions:. What is a pure substance that can not be broken down? What is the smallest unit of any substance that retains the properties of that substance? What is the charge, and where found:

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GRCRT Science Review

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  1. GRCRT Science Review You’ve Come to the Right Place!

  2. On the Lighter Side…

  3. Questions: • What is a pure substance that can not be broken down? • What is the smallest unit of any substance that retains the properties of that substance? • What is the charge, and where found: - PROTON -NEUTRON - ELECTRON

  4. QuestionS • What number is the most important number of the Periodic Table? ____________ ____________ Why? • Where is most of the mass found in an atom? ______ • What charge does an atom have in a “natural “state? • How can you get the mass number of an atom?

  5. Question Almost all elements do have specific atoms that may have a different number of neutrons in the nucleus. What do we call those atoms? _________________________ When ever atoms are ready to bond, they become charged (either + or - ). What do we call these chargedatoms? __________________________

  6. Question • If you want to use an element for conducting heat or electricity, what would an good element be?

  7. Question • In order to do C14 dating, which element must all living things possess?

  8. Question: chemical symbols • What are the symbols represented by the following: • Oygen *Nitrogen *Potassium *Chlorine • Carbon * Calcium *Sodium * Hydrogen • What are the chemical compounds for Water : ____________ Table Salt: _______

  9. Question • Which of the following formulas would all be considered compounds: • O2 , CO2 • H2 , CO2 C. CO2 , H2O D. H2 , O2

  10. Question • Which metal would be a good metal to be used for drilling? • Aluminum • Copper • Gold • Steel

  11. Question Yes or No: The total amount of Mass will change when • You change its shape • You take away or add materials • You moveup in height • You divide it into 2 equal pieces

  12. Question 3 m ↑ 3 m 6 m What is the areaof this box? ____________ DON’T FORGET THE CORRECT ENDING UNIT!

  13. Question • This is the formula for which physical property? 100 g 20 mL = 5 g/ml

  14. Volume • What is the formula for volume? Length x width x height What are the 3 ways you can express volume? If it is a liquid, or measured in a liquid, you can use liters (mL, L, kL). Since liquids already imply filling up a height you don’t need the 3 exponent. If the object is a solid, and you can use a meter stick, then you have to use the 3 exponent. If the object is small, like medicine in a shot, you can use cc (cubic centimeters.) This already says cube, so you don’t need the 3 exponent.

  15. Volume Questions • Formula for volume? ___________________________ • What is the correct ending units: • 6 g 6 g • 3 cm = 2 ___ 3 mL = 2_____ • 6 g • 3 cc = 2 ________

  16. Question 5 m ↑ 5 m 10 m What is the volume of this box? ____________ DON’T FORGET THE CORRECT ENDING UNIT!

  17. Question Bob has a pet rock named Fred. (He is a lonely guy.) Bob wants to know the density of this rock. What two instruments can Bob use to find the density of Fred?

  18. Question Larry weighs 120 lbs on Earth. Planet X has ¼ the gravity of the Earth. If Larry went to Planet X, how much would he weigh?

  19. Question Jericho’s dad and Renaldo's dad both want their sons to win a soapbox derby by racing homemade cars down a ramp. Jericho’s dad is not above cheating to win. What could he do to Jericho’s car so that it would go down the ramp faster?

  20. Question • What is different about the molecules of solid, liquid and gas? • Can break away and move freely • Can break away, but can’t quite move past each other • Pull of gravity is so strong, the molecules can only vibrate against each other.

  21. Question • Lenora left her ice tea on the counter. When she returned, the outside of her glass was wet. This was due to • The glass was really sad to see her go. • Evaporation • Condensation • Her little brother found it and spit on it.

  22. Question When Muscle Man Malcolm lifts weights, what type of simple machine do his arm and elbow become?

  23. Question • You are visiting the Queen of England, and it is High Tea time. The tea arrives just the way the Queen likes it – very hot. You need to cool your tea. Would you choose a wooden spoon, a plastic spoon or a silver spoon? Why?

  24. Question • Marvin forgot about the chocolate kisses left on the window sill. When he found them, they were all squishy. In terms of heat transfer, why did the kisses melt?

  25. States of Energy: Potential Vs. Kinetic • When the rope about to hit the ground, it is at it’s greatest __________ and lowest ____________ energy. • The young girl holds the rope above her head, the rope is at itsgreatest ___________ and her lowest ___________.

  26. QuestionS • Two elements undergo a chemical change and become a ______________________ • The basic unit of all matter is the _______________ • When sand and water combine, you have a ________ • Chocolate milk is a _________________ ___________ • Alphabet soup is a _________________ ____________

  27. Question:Transfer of energy • A vacuum cleaner goes from _________ to _________ • A hair dryer goes from __________ to _________ • Digestion goes from _________ to _________ • A light bulb goes from _________ to _________________ and ____________ • Lightning goes from _________ to _________ to ________________ and __________________ • A battery goes from ____________ to ____________

  28. Question: How does Heat Transfer? • When heat transfers by touch, it is called ___________________ • When heat transfers by mixing hot and cold, it is called ___________________ • When heat transfers by radiating from a distance, it is called ___________________

  29. Questions: What type of Heat Transformation? • Air conditioning • Stovetop • Boiling water • The Sun • A heater that has a fan • The coil radiator in an old house

  30. Question • For a battery to operate a light: A.The electric current goes from the positive end, to the negative end, then through the light B. The electric current goes from the the negative end, to the positive end, and then through the light C. The electric current goes from the positive end, through the light, to the negative end D. The electric current goes from the negative end, through the light, to the postive end

  31. Questions: Chemical or Physical Change? • Burning toast • Cake mix • Color • Baking • Melting • Freezing • Size • Evaporation • Adding vinegar to baking soda

  32. Question • Jamie is an electrician. In order to wire a room so that the lights all work, even if one goes out, Jamie would create a _______________ circuit. What would it look like? • What would be the worse type of circuit? What would it look like?

  33. Questions: Simple Machines • A ramp is used for loading because it requires you to use less __________________ • Which simple machine has a fulcrum? • A flag pole uses a ________________ • To open a can of paint, you would use a __________ • To cut something, like the head of an axe or shovel, you would use a ___________________

  34. Increasing Distance with a Ramp • What could the little guy try so that he can go back down to the ground, and the big guy would go up?

  35. Questions: Newton’s Laws • Which law says it is hard to start, stop or change direction? It is also known as the law of ___________ • Which law says that a reaction/counter-reaction occurs at the same time? • Which law says that the momentum of an object is equal to its mass and its acceleration (like going down hill?) • The ________________ the hill, the faster you go!

  36. Question • What is the rate of change in motion? • What are the 3 ways it can occur? • What is the formula?

  37. Question • The following are example ending units of which formuas? • m/s = __________________ • m/s/s = __________________ • g/mL = __________________ • m/s + direction = ________________

  38. Question: Name that Force • Pulls from the center of the earth • Air resistance • The reason why the file cabinet doesn’t slide around • Rubbing your hands together • The reason why you have a constant rate of acceleration when falling • Your weight is dependent upon it

  39. Question: Name that energy • CHEMICAL, RADIANT, SOUND, NUCLEAR, MOTION, THERMAL, GRAVITATIONAL, STORED MECHANICAL or ELECTRICAL? • Food * Radio Waves • Jack in the Box • Stretched rubber band • Wind • X-rays • Fission and Fusion of an atom

  40. Question • Andy the Astronaut goes to the Moon. This means A. His weight increases, but his mass stays the same. B. His mass decreases, but his weight stays the same. C. His weight decreases, but his mass increases D. His weight decreases, but his mass stays the same

  41. QuestionS: • What do all waves carry? • What are the 2 types of waves? ____________________ _____________________ • Which one carries the waves of the electromagnetic spectrum? • Which one carries sound waves?

  42. Question: Waves Mechanical or Transverse? • Energy travels at right angles to the wave • Requires a medium • Carries electricity • Carries sound • Has a crest and tough

  43. Question • The height of the wave is its ______________ • A measurement from trough to trough or crest to crest is its ______________________ • The number of wavelengths that pass a given point every second _____________________ • What causes the pitch of your voice to go up high when you hit those high notes___________________ • What you change when you scream or whisper • _______________________

  44. Parts of a Wave

  45. Constructive vs Destructive Waves • Matching crests and crests allow for greater amplitude and louder sound (whisper vs screaming) • Matching crests and troughs decreases particle motion so that you get noise.

  46. The Electromagnetic Spectrum • The spectrum goes from • __________ to _____________ wavelengths; and • ____________ to ___________ frequencies. • What is the ORDER of the spectrum: 1. ______ 2. ______ 3. ______ 4. ______ 5 ______. 6. ______ 7. ______

  47. The Electromagnetic Spectrum

  48. Question • What is the difference between reflection and refraction? • What causes you to see the color red? Blue? • What are the primary colors of LIGHT?

  49. Question • Rebecca wears a black sweater in winter because…. • Why are the walls in this room white?

  50. Resonance Disaster

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