Forces Science

A push or a pull that can move an object is a __________.

• gear
• lever
• force
• machine

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NGSS.MS-PS2-2

Which statement about the force of gravity is true?

• The smaller the masses of the two objects, the larger the effects of gravity between them.
• The smaller the distance between two objects, the larger the force of gravity between them.
• Distance affects the force of gravity, but mass does not.
• Mass affects the force of gravity, but distance does not.

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What famous scientist was the unit of force named after?

• Isaac Newton
• Galileo Galilei
• Albert Einstein
• Charles Darwin

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The force resulting from the pull of the earth on an object

• mass
• gravity
• acceleration
• unbalance

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NGSS.MS-PS2-4

Gravity is what type of force?

• push
• mean
• neutral
• pull

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What is the unit of force?

• Kilogram
• Meter
• Pascal
• Newton

The force of gravity is responsible for which of these things?

• Keeping our planet in orbit around the sun.
• Keeping our moon in orbit around our planet.
• Letting things fall to the ground.
• All of the above.

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NGSS.MS-PS2-4

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What do you need to measure to find the speed of a moving car?

• distance and time
• speed and direction
• direction and time
• distance and momentum

Which type of force resists motion?

• Friction

• Gravity

• Pull

• Push

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How does the mass of an object affect the motion of an object?

• The greater the mass the less effect a force will have

• The greater the mass the greater the effect a force will have

• The less the mass the less effect a force will have

• It has no effect

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