Transcript Friction and Gravity Questions

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Friction and Gravity
Questions
1. Why does a pushed book
stop?
Friction and Gravity
Questions
2. Why do smooth surfaces have
friction?
Friction and Gravity
Questions
3. What direction does a friction
force act?
Friction and Gravity
Questions
4. What 2 factors influence the
amount of friction?
Friction and Gravity
Questions
5. Give 3 examples of useful
friction.
Friction and Gravity
Questions
6. Name three types of friction.
Friction and Gravity
Questions
7. List two ways people reduce
sliding friction.
Friction and Gravity
Questions
8. What is the acceleration rate of
falling objects near Earth?
Friction and Gravity
Questions
9. How fast is a marble moving 4
seconds after being dropped
from the roof of a building?
Friction and Gravity
Questions
10. Why do some objects fall
faster than others in our
atmosphere?
Friction and Gravity
Questions
11. What type of friction would air
resistance be?
Friction and Gravity
Questions
12. What is terminal velocity?
Friction and Gravity
Questions
13. What causes terminal
velocity?
Friction and Gravity
Questions
14. The gravitational pull on an
object is known as
__________________?
Friction and Gravity
Questions
15. How can you find the amount
of force with which your body
pushes on the earth?
Friction and Gravity
Questions
16. All objects exert a gravitational
force. Why can’t you feel the
gravitational pull of a house as you
walk by?
Friction and Gravity
Questions
17. Create a diagram showing how
mass and distance determines the
strength of gravity. Use spheres
and force arrows in your diagram.