12th grade science Exam Questions and Correct
1. What is motion? correct answer: Change in position over time.
2. What is needed to describe an object's position. correct answer: Reference
point.
3. What is speed? correct answer: Distance over time, how fast you are going.
4. What are two things needed to calculate an object's speed? correct answer:
Distance divided by time
5. What is the speed triangle? correct answer: Speed equals distance divided by time.
6. What is the formula for speed? correct answer: Distance divided by time.
7. How is velocity different from speed? correct answer: Velocity has direction.
8. What is the normal unit of speed? correct answer: M/h, km/h, and m/
9. What is acceleration? correct answer: How fast velocity changes
10. What causes a change in acceleration? correct answer: Change in speed
and direction
11. How does a negative or positive acceleration affect speed? correct
answer: Negative acceleration slows down while positive acceleration speeds up.
12. Apeed correct answer: Rapidity in moving, going, traveling, proceeding or performing;
swiftness; celerity.
13. Velocity correct answer: Rapidity of motion or operation; swiftness; speed
14. Acceleration correct answer: The act of accelerating; increase of speed or velocity
15. Kinetic energy correct answer: The energy of a body or a system with respect of the
body or of the particles in the system.
16. Potential energy correct answer: The energy of a body or system with respect
to the position of the body or the arrangement of the particles of the system.
17. Work correct answer: Exertion or ettort directed to produce or accomplish something; labor;
toil,
18. Friction correct answer: Surface resistance to talkative motion, as of a body sliding or
moving.
19. Reference point correct answer: An indicator that orients you generally; "it is used as a
reference for comparing the heating and the electrical energy involved.
20. Momentum correct answer: Force.or speed of movement; impetus, as of physical object
or course of events.
21. Position correct answer: Condition with reference to place; location; situation
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1. What is motion? correct answer: Change in position over time.
2. What is needed to describe an object's position. correct answer: Reference
point.
3. What is speed? correct answer: Distance over time, how fast you are going.
4. What are two things needed to calculate an object's speed? correct answer:
Distance divided by time
5. What is the speed triangle? correct answer: Speed equals distance divided by time.
6. What is the formula for speed? correct answer: Distance divided by time.
7. How is velocity different from speed? correct answer: Velocity has direction.
8. What is the normal unit of speed? correct answer: M/h, km/h, and m/
9. What is acceleration? correct answer: How fast velocity changes
10. What causes a change in acceleration? correct answer: Change in speed
and direction
11. How does a negative or positive acceleration affect speed? correct
answer: Negative acceleration slows down while positive acceleration speeds up.
12. Apeed correct answer: Rapidity in moving, going, traveling, proceeding or performing;
swiftness; celerity.
13. Velocity correct answer: Rapidity of motion or operation; swiftness; speed
14. Acceleration correct answer: The act of accelerating; increase of speed or velocity
15. Kinetic energy correct answer: The energy of a body or a system with respect of the
body or of the particles in the system.
16. Potential energy correct answer: The energy of a body or system with respect
to the position of the body or the arrangement of the particles of the system.
17. Work correct answer: Exertion or ettort directed to produce or accomplish something; labor;
toil,
18. Friction correct answer: Surface resistance to talkative motion, as of a body sliding or
moving.
19. Reference point correct answer: An indicator that orients you generally; "it is used as a
reference for comparing the heating and the electrical energy involved.
20. Momentum correct answer: Force.or speed of movement; impetus, as of physical object
or course of events.
21. Position correct answer: Condition with reference to place; location; situation
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