Force and motion test

1. What is a force?

• A type of energy

• The rate at which an object performs work

• A push or pull

• an object that makes up matter

Force is measured in:

• Joules

• kilometers

• newtons

• rpm

What type of force is the woman applying to cart in the illustration?

• An applied force

• friction

• A gravitational force

• An electrical force

What type of force opposes motion, causing moving objects to slow down and/or stop?

• An applied force

• Friction

• An electrical force

• A gravitational force

The force of friction exerted by a surface depends on:

• The color of the surface

• The temperature of the surface

• The smoothness of the surface

• The hardness of the surface

Which force is responsible for causing leaves from a tree to fall to Earth’s surface?

• gravitational

• electric

• applied

• friction

Tags

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Which object exerts gravity?

• Earth

• Moon

• baseball

• all of the above

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What force keeps the Earth in orbit around the sun?

• Friction

• Gravity

• Earth's magnetic force

• Sun's magnetic force

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What do we call the invisible force exerted by magnets?

• Magnetic force

• Electrical magnetic force

• Electric force

• applied force

Tags

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What do you call the area of electric force around an electrically charged object?

• Electric strength

• Electric field

• Electric Space

• electricity

Tags

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