Force and Mass

What does friction produce?

• light
• sound
• heat
• gravity

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On which surface will a toy sledge travel the least distance?

• Carpet

• Wood

• Ice

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The rougher the surface, the faster an object will travel over the surface.

• True
• False

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What has the most mass?

• a car

• a boat

• an airplane

• a feather

What has the least mass?

• a house

• a car

• a camper

• a balloon

What is force?

• A push or pull.

• A fast moving object.

• A large amount of energy.

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The force that pulls objects towards Earth.

• Gravity

• Friction

• Wind

• Sun

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Why is it harder for the boy in Image B to get down the hill?

• Motion
• Friction
• Work
• Displacement

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What is a force that works AGAINST MOTION?

• Force
• Motion
• Gravity
• Friction

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Students roll toy cars down the same ramp with different coverings like carpet, foil, and sandpaper. What are they trying to test?

• How does the height of a ramp affect the distance a car will roll?

• How does the mass of the car affect the distance a car will roll?

• How does the surface of a ramp affect how fast a car will travel?

• How does the surface of a ramp affect the distance a car will roll?

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