Gravity and Inertia Review

Front

What is gravity?

Back

Gravity is a force that attracts two objects towards each other, depending on their masses and the distance between them.

Front

True or False: Gravity attracts all objects towards one another.

Back

True

Front

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

Back

Because the sun has more mass than the Earth.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

When riding a bike, what causes you to keep moving forward when you brake suddenly?

Back

Inertia.

Front

Objects with more mass are harder to speed up or slow down. True or False?

Back

True.

Front

Because of inertia, a resting object will remain at ________.

Back

rest.

Front

What happens to an object in motion if no external forces act on it?

Back

It will continue to move at a constant speed in a straight line.

Front

What is the relationship between mass and gravitational force?

Back

The greater the mass of an object, the stronger its gravitational pull.

Front

What is the effect of distance on gravitational attraction?

Back

As the distance between two objects increases, the gravitational force between them decreases.