Question

gravity is a force that attracts objects toward each other. anything with mass has a gravitational pull. while everyday objects like tables and chairs have mass, their masses are not large enough to have significant amounts of gravitational force. effects of gravity are more obvious when observing massive objects like planets and moons. think about how gravity affects massive objects in the solar system. choose three correct statements about the effects of gravity of earth, the moon, and within space. a the moon has less gravitational force than earth because it is smaller and has less mass. b the orbit of each planet in the solar system is controlled by its moon(s). c earth’s tides are affected most by the sun’s gravitational force. d mass is the force that holds people and objects to the earth’s surface. e the sun’s gravitational pull is what keeps the planets in its solar system in orbit. f the sun has more gravity than any planet in the solar system because it has the most mass.

Explanation:

• Option A: Gravitational force depends on mass; the moon has less mass than Earth, so its gravitational force is weaker. This is correct.
• Option B: Planetary orbits are controlled primarily by the Sun's gravity, not their moons. This is incorrect.
• Option C: Earth's tides are most affected by the moon's gravitational pull, not the Sun's. This is incorrect.
• Option D: Gravity (not mass) is the force holding objects to Earth's surface. Mass is the amount of matter in an object. This is incorrect.
• Option E: The Sun's gravitational pull provides the centripetal force that keeps planets in their orbits. This is correct.
• Option F: Gravitational force increases with mass; the Sun has far more mass than any planet, so it has stronger gravity. This is correct.

Answer:

A. The moon has less gravitational force than Earth because it is smaller and has less mass.
E. The Sun's gravitational pull is what keeps the planets in its solar system in orbit.
F. The Sun has more gravity than any planet in the solar system because it has the most mass.