7.04 Orbits & Gravity Quiz

Why don't we float off the Earth and into space?

• Because of the Earth's magnetic field

• Because of gravity

• Because the atmosphere holds us down

• Because we are physically attached to the Earth

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What is gravity?

• A type of energy

• A force generated by objects that have mass

• A form of light

• A chemical reaction

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Which statement is true about gravitational interactions?

• They are repulsive and depend on the distance between objects only

• They only occur in our solar system

• They are attractive and depend on the masses of interacting objects

• They are strongest when objects are extremely far apart

Tags

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What determines the strength of the gravitational force an object has?

• Its color and texture

• Its distance from the Earth

• Its temperature

• Its size or mass

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Where does gravity act?

• Only on Earth

• Only in our galaxy

• Everywhere in the universe

• Only in the solar system

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What percentage of the mass of our solar system is found in the sun?

• 90%

• 95%

• 99%

• 85%

Which planet would experience the greatest gravitational pull from the sun?

• The planet closest to the sun, Mercury

• The planet farthest from the sun, Neptune

• The largest planet, Jupiter

• The hottest planet, Venus

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As the sun spins on its axis, what do the planets do?

• They remain stationary

• They spin in orbit around the sun

• They move away from the sun

• They spin on their own axis only

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What is an orbit in the context of space?

• A) A type of spacecraft

• B) A repeating path an object in space takes around another

• C) A force that keeps objects in motion

• D) The time it takes for a planet to rotate on its axis

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How does the distance from the sun affect a planet's orbital period?

• A) The closer to the sun, the longer the orbital period

• B) The distance from the sun does not affect the orbital period

• C) The further from the sun, the shorter the orbital period

• D) The further from the sun, the longer the orbital period

Tags

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