Friction, Mass, And Gravity: Question Preview (ID: 32257)

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Objects on Earth are pulled____
a) in all directions
b) toward the moon
c) toward the sun
d) toward the center of Earth

What 2 factors determine the amount of gravitation attraction between objects?
a) Mass and distance apart
b) Mass and weight
c) Mass and friction
d) Distance and age

What force that always attracts or pulls objects toward each other without direct contact or impact?
a) Gravity
b) Friction
c) Inertia
d) Magnetisim

What force occurs when 2 objects rub against each other?
a) Gravity
b) Friction
c) Inertia
d) Mass

Which of the following are ways to reduce friction?
a) All are correct
b) Add wheels
c) Apply less force
d) Smooth/oil/lubricate the surface

If an object is in motion, and more force is applied to it, it will_____
a) Speed up
b) Slow down
c) Stop
d) All are correct

Which of the following would require more force to move, start, or stop it?
a) A truck with a mass of 2,000 kg.
b) A car with a mass of 200 kg.
c) A bus with a mass of 2500 kg
d) A bike with a mass of 20 kg.

Which of the following would cause more friction?
a) A massive object rubbing against a smooth surface
b) a massive object rubbing against a rough surface
c) a light object rubbing against a rough surface
d) a light object rubbing against a smooth surface

If air resistance is ignored, which of the following are true?
a) any objects dropped at the same time will land at the same time
b) an object with more mass will accelerate faster
c) an object with less mass will accelerate faster
d) ALL are correct

What would happen if friction did not exist?
a) We would slow down more slowly
b) Objects would never stop
c) Objects would not be able to move
d) Objects would have more mass

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