Exploring Forces in 4th Grade Science

What is force primarily described as?

• A type of energy

• A push or a pull

• A form of light

• A chemical reaction

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

What type of force involves direct contact between objects?

• Gravitational force

• Applied force

• Nuclear force

• Magnetic force

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NGSS.MS-PS2-1

Which scenario illustrates the effect of friction?

• A ball rolling slower on grass than on glass

• A magnet attracting iron

• A planet orbiting the sun

• A light bulb emitting light

What can reduce friction and increase mobility?

• Water or oil

• Heat

• Light

• Electricity

What determines the strength of gravity between two objects?

• Their temperature

• Their distance

• Their mass

• Their color

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NGSS.MS-PS2-2

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Which object has the strongest gravitational pull?

• A satellite

• The Sun

• The Earth

• The Moon

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NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which force can act over a distance without direct contact?

• Applied force

• Friction

• Gravity

• Thermal force

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NGSS.MS-PS2-4

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What is the effect of a larger mass on gravitational pull?

• Increases it

• No change

• Makes it erratic

• Decreases it

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NGSS.MS-PS2-4

What causes magnetism in an object?

• Heat

• Friction

• Electron charge

• Gravity

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What happens when a non-magnetic object enters a magnetic field?

• It becomes magnetic

• No effect

• It gets repelled

• It gets attracted