Download Chp+12+Quest REVISED 2012

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Name_______________________________ Date_______________________ Period____________
Chapter 12 Forces Quest ?’s
Directions: Using your packet/textbook, complete the following “quest” questions!
Chp 12-1
Who is Isaac Newton?
What is Newton’s first law of motion?
What does it take to change the motion of an object? Give an example.
What is inertia?
5. What measurement determines the amount of inertia an object has?
6. According to the first law, why are seat belts needed in cars?
7. Why are car seats placed backwards and how does this make it safer for the baby?
8. What is Newton’s Second law of motion?
9. What is the formula for the second law? (include SI units)
10. What is a newton (N)?
11. Complete the statement; If the mass stays the same, and the force INCREASES then +/acceleration will _____________. So in order to change the motion of a massive object, a
___________ force is needed.
12. Complete the statement: If the force stays the same, and the mass INCREASES then
acceleration will _____________. So in order to INCREASE the motion without changing force,
the mass must be ___________.
Chp 12-2 Gravity
1. What is weight?
2. How do you calculate weight? (include SI units)What is gravity?
3. What is the difference between mass and weight?
List the three main parts of the Law of Universal Gravitation?
What is the universal gravitation equation?
How does mass affect gravitational force? Is it a direct or indirect relationship?
How does distance affect gravitational force? Is it a direct or indirect relationship?
8. What is free-fall?
9. What is free-fall acceleration on Earth?
10. Does mass of an object affect the free-fall acceleration?
11. Define terminal velocity.
12. How does mass affect terminal velocity of an object?
13. What other force is involved that determines terminal velocity?
Name_______________________________ Date_______________________ Period____________
14. What is projectile motion?
15. Describe how projectiles move and what is acting on them? Draw a picture and label
16. What is an orbit?
17. How did a space shuttle orbit the Earth with out falling back into it?
Chp 12-3
1. What is an action force?
2. What is a reaction force?
3. What is a force pair?
4. Why don’t action/reaction forces cancel each other?
5. Why don’t we see equal effects from equal forces?
6. What does Newton’s third law of motion say? (4 ideas)
7. What is momentum?
8. What is the formula for finding momentum (include SI units):
9. How does velocity affect momentum?
10. How does mass affect momentum?
11. How does changing the time affect the amount of force needed to cause change in an objects
12. What does “conserved” mean in science?
13. What does the law of conservation of momentum state?