NGSS.5-PS2-1

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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NGSS.5-PS2-1

What is gravity?

• The force that keeps you down.
• The solar system.
• The 7th planet..
• A force that keeps you up. :)

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NGSS.5-PS2-1

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.5-PS2-1

The force that pulls objects towards Earth.

• Gravity

• Friction

• Wind

• Sun

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NGSS.5-PS2-1

The closer to the Earth's surface an object is, the stronger gravity pulls on it.

• True

• False

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NGSS.5-PS2-1

_____________________ is a force that tries to pull two objects together.

• force

• energy

• gravity

• friction

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NGSS.5-PS2-1

_______ is a measure of the force of gravity on an object

• Friction

• Mass

• Speed

• Weight

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NGSS.5-PS2-1

Why doesn't the sun pull us off the earth?

• It is too small

• It is too far away

• It is too big

• It is too close

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NGSS.5-PS2-1

What is responsible for the revolution paths of the Earth and the Moon? 

• Rotation
• Seasons
• Gravity
• Acceleration

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NGSS.5-PS2-1

What force keeps the Moon in its orbit around Earth?

• Friction

• Gravity

• Magnetism

• Electricity

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NGSS.5-PS2-1