Gravity in Space Reading Comprehension Question Check

What is gravity?

• The force of attraction between two objects due to their masses.

• The force that pushes objects away from each other.

• The energy that objects have because of their motion.

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How does gravity affect objects in our solar system?

• It keeps them stationary.

• It determines their motion, keeping them in orbit and affecting their speed and direction.

• It makes them spin faster.

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Why does the Sun exert a powerful gravitational force on the planets?

• It is the largest object in the solar system.

• It is the hottest object in the solar system.

• It is the closest object to all the planets.

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What is the difference between mass and weight?

• Mass changes with location, weight does not.

• Weight is the amount of matter in an object, mass is the force of gravity acting on an object.

• Mass is the amount of matter in an object, weight is the force of gravity acting on an object's mass.

Why would you weigh less on the Moon than on Earth?

• The Moon has less mass than Earth.

• The Moon is farther from the Sun.

• The Moon has more water than Earth.

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What are orbits, and what shape do they typically have?

• Straight paths planets follow around the Sun.

• Curved paths that are typically elliptical.

• Circular paths that planets follow around the Moon.

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What are comets made of, and how does the Sun’s gravity affect them?

• Ice, dust, and rock; the Sun’s gravity pulls them closer, causing them to speed up and develop comas and tails.

• Gas and plasma; the Sun’s gravity pushes them away, causing them to slow down.

• Metal and water; the Sun’s gravity keeps them stationary.

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Where are asteroids primarily found in the solar system?

• In the Kuiper Belt.

• Between Mars and Jupiter.

• Near the Sun.

What role does gravity play in keeping satellites in orbit around Earth?

• It pushes them away from Earth.

• It stops their motion entirely.

• It pulls them towards Earth while their forward motion keeps them in orbit.

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How does the Moon’s gravity affect tides on Earth?

• It creates bulges in Earth’s oceans, causing tides.

• It has no effect on tides.

• It makes the tides disappear.