Quiz #29 Force and Motion

What is a force?

• a push or pull
• speed or acceleration 
• potential or kinetic energy
• balanced or unbalanced force

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What is the force that causes everything to be pulled down to the Earth?

• friction
• gravity
• balanced
• unbalanced

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What is MOVEMENT?

• Inertia
• Force
• Work
• Motion

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A boy rides a skate board down a hill. Eventually the skate board stops. Which is most responsible for causing the skateboard to stop?

• gravity acting on the skateboard

• friction acting on the skateboard

• the mass of the skateboard

• the mass of the boy

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If you wanted to test the effect of gravity on an object, which set of materials should you choose?

• battery, wires, lightbulbs
• hot plate, water, thermometer
• two different types of balls, metric ruler
• two cups, two different types of soil, water and seeds

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Which testable question could be used to investigate the effects of force on an object?

• Why do toy cars move?
• Which type of battery lasts the longest?
• Where can magnets be purchased?
• Do balls roll faster on rough or smooth surfaces?

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The force of friction is caused by:

• surfaces rubbing against one another
• objects heating or cooling
• rough surfaces
• smooth surfaces

What would take the most force?

• Rolling a rock down a hill
• Pushing a rock on ice
• Pushing a rock on a gravel road
• Pulling a rock on wheels

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