Crash Course Compliation

Who was the first scientist to study gravity seriously?

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NGSS.HS-PS2-4

What would happen if you threw a ball upwards on Earth?

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NGSS.MS-PS2-4

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Why do objects on Earth fall towards the center?

• Because of the wind

• Because of gravity

• Because of the Earth's rotation

• Because of the Earth's magnetic field

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NGSS.MS-PS2-2

NGSS.MS-PS2-4

What is needed to escape Earth's gravity and travel to the Moon?

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NGSS.HS-PS2-1

NGSS.HS-PS2-4

What did astronaut Dave Scott demonstrate on the Moon with a hammer and a feather?

• That objects can float

• That there is no gravity on the Moon

• That objects fall at the same rate without air resistance

• That the Moon has an atmosphere