NGSS.MS-ESS1-2

Tides are caused by ___________

• wind
• gravitational pull of moon
• waves gravitation toward land
• rain

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NGSS.MS-ESS1-2

What causes tides?

• gravity
• wind
• spring
• neap

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NGSS.MS-ESS1-2

Why do all of the planets orbit the sun rather than Earth?

• the sun has more mass
• the sun is a star
• the Earth is heavier
• the sun is in the middle of the milky way

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NGSS.MS-ESS1-2

Is there gravity in space?

• It is undescovered
• Yes
• Very little
• No

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NGSS.MS-ESS1-2

The ____________ object always orbits the other object

• More massive
• Less massive
• Bigger diameter
• Smaller diameter

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NGSS.MS-ESS1-2

Without gravity the moon would

• go around the Earth
• collide with Earth
• move in a straight line

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NGSS.MS-ESS1-2

A satellite in orbit would have _________________.

• unbalanced forces
• balanced forces

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NGSS.MS-ESS1-2

What do we call the path of an object when it goes around another object?

• Orbit
• Free Fall
• Projectile Motion
• Terminal Velocity

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NGSS.MS-ESS1-2

The sun orbits the center of the galaxy once every...

• 225 years
• 225 thousand years
• 225 million years
• 225 billion years

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NGSS.MS-ESS1-2

What keeps the planets in orbit around the sun?

• gravity

• friction

• density

• distance

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NGSS.MS-ESS1-2