Ch 3 Lesson 2-- Overcoming Gravity

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, like how the Earth pulls us down.

Front

What does it mean to overcome gravity?

Back

To overcome gravity means to use a force strong enough to lift an object against the pull of gravity.

Front

What is a satellite?

Back

A satellite is an object that orbits a planet or the Sun.

Front

What is the solar system?

Back

The solar system is made up of the Sun, planets, moons, and all objects that orbit the Sun.

Front

What happens when a ball bounces upward?

Back

The ball is overcoming gravity when it bounces upward.

Front

Can you give an example of overcoming gravity?

Back

An example is a rocket launching into space.

Front

What is an example of an object that does not overcome gravity?

Back

A basketball resting on the ground does not overcome gravity.

Front

What force pulls objects toward the Earth?

Back

Gravity is the force that pulls objects toward the Earth.

Front

What is the effect of gravity on a falling object?

Back

Gravity causes the object to accelerate downward.

Front

What is an example of a satellite?

Back

The Moon is a natural satellite that orbits the Earth.