Review for Chapter 3 Test
1. Know the difference between a scientific fact, law and theory
2. Who is the Father of Modern Science?
3. Know the metric prefixes and the value they correspond to:
a. Milli d. Deca
b. Centi e. Hecta
c. Deci f. Kilo
4. Be able to convert cm to m as well as g to kg
a. 54cm ______m c. 223g______kg
b. 120 cm ______m d. 43g to ______kg
5. What is the difference between distance covered and displacement?
6. Define:
Speed
Velocity
Acceleration
7. A scalar represents the ______of a quantity?
8. What is the speed of an object at rest? Explain.
9. What is found by dividing the total displacement by the total time?
10. The rate of change of velocity is also known as ______.
11. What is free fall acceleration?
12. Does the speed of an object increase, decrease or stay the same while it is moving upward?
13. What is the value of gravity on the surface of earth?
14. What does a speedometer measure? Explain.
15. Explain the difference between speed and velocity.
16. What is the symbol for ‘change’?
17. What does an object need to have in order to be accelerating? (Some things must be changing)
18. What are the units for:
Time
Length/Distance
Mass
Speed
Velocity
Acceleration
19. What are the 3 controls in your car that can change your velocity therefore causing an acceleration?
20. What did I say is the key to acceleration?
21. Vector or Scalar??
Distance, displacement, time, speed, velocity, acceleration
22. What is always true about an object that is speeding up?
a. Displacement and velocity vectors are pointing in opposite directions
b. Velocity and acceleration vectors are pointing in opposite directions
c. Velocity and acceleration vectors are pointing in the same direction
d. The acceleration vector is pointing to the right
23. An object’s motion with zero displacement must also have zero distance? True or False?
24. Can you be accelerating if you are traveling in a straight line at constant speed? Explain
Can you be accelerating if you are traveling in a circle at constant speed? Explain
25. Write out the Kinematic Equations then also tell me what each variable stand for
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**Anything we’ve talked about in class or I’ve given notes over is subject to be on the test!!! So study your notes!!
**Be sure to look over your worksheets and know how to do speed, velocity, and acceleration problems. If you want practice problems, in your book pages 61 (#’s 17-23) and 749 (#’s 1-6)