Final Exam (S2) Integrated Science

1. Final Exam (S2) Integrated Science Ms. Phillips 2013-2014

2. Which of the following internet sources are reliable sources of information: • Websites for clubs or organizations that are selling a product • Any internet site is reliable • Websites that are used to share information about a high school club • Websites like wikianswers.com, Google or ask.com • Websites with web addresses that end in .gov or .edu

3. When conducting background research using the scientific method, the last information source you us is: • Internet • Dictionary or Thesaurus • Magazine • Textbooks or other non-fiction books on the subject you are researching • Encyclopedia

4. Which of the following items are true about subjects for inquiries: • Human subjects must volunteer, must be available to participate, must understand what they will be expected to do and must be allowed to stop participating at any time. • Subjects can only be people • Science studies must be approved by the science board of directors • All of the above • None of the above

5. Which of the following items are true about scientific observations: • Involves the five (5) senses • Observations can be objective or subjective • Observations trigger the question that leads to an inquiry • All of the above are correct • Observations only happen in laboratories

6. Motion is described with respect to a _____. • displacement • frame of reference • slope • graph • speed

7. Displacement is distance combined with __________. • direction • Speed • velocity • magnitude • slope

8. Displacement vectors of 3m and 5m in the same direction combine to make a displacement vector that is __________. • 2m • 0m • 8m • 15m • 35m

9. Average speed is the total distance divided by the __________. • slope • average distance • average acceleration • total time • amount of gasoline used

10. The slope of a distance-time graph is equal to the __________. • speed • displacement • acceleration • motion • None of the above

11. Velocity is: • the slope of a linear graph. • speed with direction • acceleration divided by displacement • the same in all reference frames • All of the above

12. Two or more velocities can be combined by _________________________. • graphing the slope • determining the rate • using vector addition • using vector division • calculating the instantaneous speed

13. A ball just dropped is an example of ________________. • constant speed • instantaneous speed • combining displacements • free fall • velocity

14. Acceleration is equal to _______________. • distance divided by time • change in speed divided by time • the slope of a distance-time graph • change in speed multiplied by time • none of the above

15. The rate at which velocity is changing at a given instant is described by _______________. • instantaneous speed • average speed • constant speed • vector addition • instantaneous acceleration

16. A runner completes a 10.0-km race in exactly 30 minutes. What is the runner’s average speed in km/h? (60 minutes = 1 hour) • 30.0 km/h • 15.0 km/h • 5.00 km/h • 20.0 km/h • 10.0 km/h

17. Which of the following is NOT a vector quantity? • velocity • displacement • distance • acceleration • none of the above

18. Which is not a force? • momentum • friction • gravity • weight • none of the above 12 Forces & Motions

19. You push on a box and are unable to move it. What force opposes your push? • rolling friction • sliding friction • static friction • air resistance • inertia 12 Forces & Motions

20. Air resistance depends on ________. • the weight of a moving object • the velocity of a moving object • the mass of a moving object • the inertia of a moving object • humidity and human effort 12 Forces & Motions

21. What force besides gravity acts on a projectile? • weak nuclear • electrical • magnetic • air resistance • emotional 12 Forces & Motions

22. Newton’s first law of motion is sometimes called the law of _____. • inertia • conservation • momentum • resistance • the jungle 12 Forces & Motions

23. A change in which of the following affects the weight of an object? • momentum • velocity • friction • direction • acceleration due to gravity 12 Forces & Motions

24. Which represents Newton’s second law? • None of the above 12 Forces & Motions

25. For every action force there is a _____. • net force • balancing force • friction force • reaction force • unbalanced force 12 Forces & Motions

26. Momentum depends on ________. • mass and velocity • force only • velocity and friction • weight and mass • love and understanding 12 Forces & Motions

27. What force holds the nucleus together? • magnetic • legal • strong nuclear • gravitational • centripetal 12 Forces & Motions

28. An object changes direction as it moves. Which of the following is FALSE? • The acting force is not at zero. • An unbalanced force acts on the object. • The object is accelerating. • A centripetal force must act on the object. • The object’s inertia remains unchanged. 12 Forces & Motions

29. Which has the greatest momentum? • A huge bolder at rest. • A car traveling on a highway. • a small pebble at rest. • a baseball after it is hit with a bat. • a small pebble that is tossed into the air. 12 Forces & Motions

30. A resting object exerts pressure equal to _______________. • its mass times its contact area • its weight times its contact area • its mass divided by its contact area • its weight divided by its contact area • none of the above 13 Forces in Fluids

31. Compared to the pressure exerted by a brick standing on its end, the pressure exerted by a brick resting on its side is _______________. • the same • more • less • twice as much • impossible to know 13 Forces in Fluids

32. The amount of water pressure you experience while swimming in a pool depends on _______________. • the area of the pool • the volume of water in the pool • your buoyancy • how deep you are in the water. • who is measuring the pressure 13 Forces in Fluids

33. Which of the following is NOT true about the SI unit of pressure? • It is used by fluids only. • It is called a pascal. • It is equal to one newton per square meter. • It represents force per unit area. • All of the above 13 Forces in Fluids

34. Blaise Pascal discovered that changes in pressure _______________. • are transmitted equally throughout a fluid • increase with depth of fluid • decrease with depth of fluid • depend on the area • have no effect on anything 13 Forces in Fluids

35. In a hydraulic lift system, the output force is greater than the input force because _______________. • a larger pressure acts on the output piston • a larger pressure acts on the input piston • the fluid pressure acts on areas of different sizes • of Bernoulli’s principle • there is no evidence to explain it 13 Forces in Fluids

36. Which of the following is NOT true about Bernoulli’s principle? • The pressure within a moving fluid is greater than the pressure within a nonmoving fluid. • As a fluid’s speed increases the pressure within it decreases • It helps explain the lift of an airplane • It explains why airline flights are delayed • When a moving fluid slows, the pressure within it increases 13 Forces in Fluids

37. The buoyant force acting on a submerged object is equal to _____. • the object’s mass • the mass of the fluid displaced by the object • the object’s volume • the weight of the fluid displaced by the object • the amount of liquid involved 13 Forces in Fluids

38. A partially submerged object floats when _______________. • the object’s weight is equal to the buoyant force • the object’s mass is equal to the buoyant force. • the object’s weight is greater than the buoyant force. • the buoyant force is downward. • the object has not sunk further into the liquid. 13 Forces in Fluids

39. A submarine changes depth by altering its ________________. • speed • density • total area • shape • direction 13 Forces in Fluids

40. When air is blown between two balls suspended from strings, the balls come together and touch. This is explained by _______________. • Archimedes’ principle • Pascal’s principle • the hydraulic principle • Bernoulli’s principle • the Pauli exclusion principle 13 Forces in Fluids

41. In a hydraulic system, the area of the output piston is three times larger than the area of the input piston. How is the output force related to the input force? • It is nine times smaller • It is three times larger • It is nine times larger • It is three times smaller • It is the same 13 Forces in Fluids

42. The energy of a moving object is ___________. • potential energy • lost energy • chemical energy • nuclear energy • kinetic energy 15 Energy 

43. If the speed of an object doubles, its kinetic energy _______________. • doubles • stays the same • quadruples • is halved • is squared 15 Energy 

44. An example of an object having elastic potential energy is ________. • a stretched spring • books on a shelf • a moving arrow • a falling oyster • a speeding car 15 Energy 

45. An example of electromagnetic energy is _______________. • a falling rock • sunlight • a stretched spring • a speeding train • books on a shelf 15 Energy 

46. Energy stored in the bonds between atoms is called _______________. • imagined energy • kinetic energy • potential energy • chemical energy • nuclear energy 15 Energy 

47. Mechanical energy is ___________. • found in machinery only • usually measured at the atomic level • the sum of the chemical and thermal energy of and object. • the sum of the kinetic and potential energy • none of the above 15 Energy 

48. An example of the conversion of gravitational potential energy into kinetic energy is _______________. • a gasoline-powered engine • a falling raindrop • striking a match • a nuclear explosion • a hockey puck sliding on ice 15 Energy 

49. The law of conservation of energy states that _______________. • energy cannot be created or destroyed • energy cannot be converted from one form to another • energy resource must be used efficiently • energy is constantly being lost to friction • conserving energy leaves extra energy for other activities 15 Energy 

50. Which of the following energy resources accounts for most of the word’s present energy use? • uranium • cranium • wind energy • solar energy • fossil fuels 15 Energy