Gravity and Inertia

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, such as the force that pulls us toward the Earth.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist a change in its motion. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a force.

Front

What creates stronger gravity?

Back

Gravity is stronger when two large objects, like planets, are close together.

Front

What keeps planets in orbit around the sun?

Back

Planets are kept in orbit around the sun by the combination of gravity and inertia.

Front

What is mass?

Back

Mass is the amount of matter in an object and does not change regardless of the gravitational field.

Front

What happens to an astronaut's mass in space?

Back

An astronaut's mass stays the same in space, even though their weight may change.

Front

What is weight?

Back

Weight is the force of gravity acting on an object, which can change depending on the gravitational field.

Front

How does distance affect gravity?

Back

The farther apart two objects are, the weaker the gravitational pull between them.

Front

What is the relationship between mass and gravity?

Back

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

Front

What is an example of inertia in everyday life?

Back

When a car suddenly stops, passengers lurch forward due to inertia.