Physical Science 1st Semester Mid Term Exam Study Guide 2014 Introduction / Motion & Force s Multiple Choice
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| Physical Science 1st Semester Mid Term Exam Study Guide 2014 Introduction / Motion & Force s
Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. What are 6 centimeters equal to?
____ 2. How many meters are there in 1,865 cm?
____ 3. The best type of graph to use to show how some fixed quantity is broken down into parts is ____.
____ 4. When designing an experiment, the first step is to ____.
____ 5. What is a scientific law?
____ 6. Scientific theories can be changed or replaced when
____ 7. The decimal equivalent of 10–2 is
____ 8. What is 78,900,000,000 expressed in scientific notation?
____ 9. The speed of light is approximately 3 ´ 108 m/s. How would this be written in conventional notation?
____ 10. The difference between speed and velocity is that velocity includes
____ 11. Friction is defined as
____ 12. Weight is best described as
____ 13. When objects are moved further apart from each other, the force of gravity
____ 14. The law that states that every object maintains constant velocity unless acted on by an unbalanced force is
____ 15. The law that states that for every action force there is an equal and opposite reaction force is
____ 16. The law that states that the unbalanced force acting on an object equals the object’s mass times its acceleration is
____ 17. Which of the following is true?
____ 18. A merry-go-round horse moves at a constant speed but at a changing ____.
____ 19. A horizontal line on a velocity/time graph shows ____ acceleration.
____ 20. Inertia varies depending on ____.
____ 21. A ball is rolled uphill a distance of 5 meters before it slows, stops, and begins to roll back. The ball rolls downhill 9 meters before coming to rest against a tree. What is the magnitude of the ball’s displacement?
____ 22. The slope of a line on a distance-time graph is
____ 23. What is the speed of a bobsled whose distance-time graph indicates that it traveled 100 m in 25 s?
____ 24. Suppose you increase your walking speed from 1 m/s to 3 m/s in a period of 1 s. What is your acceleration?
____ 25. The slope of a speed-time graph indicates
____ 26. When a pair of balanced forces acts on an object, the net force that results is
____ 27. As you push a cereal box across a tabletop, the sliding friction acting on the cereal box
____ 28. The forces acting on a falling leaf are
____ 29. The property of matter that resists changes in motion is called
____ 30. An orange might roll off your cafeteria tray when you stop suddenly because of
____ 31. If a force of 12 N is applied to an object with a mass of 2 kg, the object will accelerate at
____ 32. Your weight equals your
____ 33. Newton’s third law of motion describes
____ 34. In which of the following are action and reaction forces involved?
____ 35. What force is responsible for the repulsion between two positively-charged particles?
____ 36. When opposite poles of two magnets are brought together, the poles
____ 37. Which universal force acts only on the protons and neutrons in a nucleus?
____ 38. With which of the following is the weak nuclear force associated?
____ 39. Which of the following universal forces is the weakest?
____ 40. The gravitational force between two objects increases as mass
Completion Complete each statement. 41. An organized plan for gathering, organizing, and communicating information is called a(an) ________________. 42. A(An) ____________________ is a way of organizing data that is used to show changes that occur in related variables. 43. A(An) ____________________ is a statement that summarizes a pattern found in nature. 44. A(An) _________________________ explains a pattern found in nature. 45. A scientific ____________________ describes a natural event but does not explain why the event happens. 46. 375 cm equals ____________________ m. 47. According to Newton’s second law of motion, force is the product of ____________________ and ____________________. 48. Acceleration occurs when an object changes its ____________________ or ____________________ or both. 49. At the same speed, a bowling ball is harder to stop than a soccer ball because the bowling ball has greater ____________________. 50. A distance-time graph indicates an object moves 20 km in 4 h. The average speed of the object is ____________________ km/h. 51. Freely falling objects accelerate at 9.8 m/s2 because the force of ____________________ acts on them. 52. Accelerated motion is represented by a(an) ____________________ line on a distance-time graph. 53. The force that opposes the motion of objects that touch as they move past each other is called ____________________. 54. It usually takes more force to start an object sliding than it does to keep an object sliding because static friction is usually ____________________ than sliding friction. 55. The two forces acting on a falling object are gravity and ____________________. 56. When a falling object reaches terminal velocity, the net force acting on it is ____________________. 57. The tendency of an object to resist any change in its motion is called ____________________. 58. During a head-on auto collision, ____________________ causes a passenger in the front seat to continue moving ____________________. 59. The force of gravity acting on an object is the object’s ____________________. Short Answer 60. Define acceleration. 61. State Newton's first law. 62. State Newton's second law. 63. What is the difference between mass and weight? 
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