Understanding Gravity and Mass Concepts

What is the definition of gravity?

• The force that holds us down on Earth.

• The force that causes things to fall.

• The attraction between two masses.

• The force that keeps objects from floating away.

What determines an object's mass?

• Its size.

• The amount of matter it contains.

• Its density.

• Its gravitational pull.

How does an object's mass relate to its gravitational force?

• More mass means less gravitational force.

• Mass and gravitational force are unrelated.

• More mass means a higher gravitational force.

• Only very large objects have gravitational force.

How does the distance between two objects affect their gravitational force?

• The farther apart they are, the stronger the force.

• Distance has no effect on gravitational force.

• The closer they are, the stronger the force.

• Gravitational force only applies to objects touching each other.

Why does Earth's gravitational force keep humans on its surface?

• Humans have a very large mass.

• The Earth's mass is much larger than a human's mass.

• Humans are constantly pushing down on the Earth.

• The Earth's atmosphere prevents humans from floating away.

Why do astronauts experience less gravity on the Moon compared to Earth?

• The Moon is farther from the Sun.

• The Moon has a smaller mass than Earth.

• Astronauts wear special suits that reduce gravity.

• The Moon has no atmosphere.

What is weight defined as?

• The amount of matter in an object.

• The size of an object.

• The gravitational force on an object.

• The density of an object.