Gravity, Part 1

What holds all the stuff together in the universe?

• Force

• Matter

• Gravitational Pull

• Gravity

What is gravity?

• the force or pull created by the mass of objects in the universe toward each other

• a pull or a push on an object or system

• the force that draws all objects in the universe toward each other

• the substances all objects on Earth are made of; all substances that take up space

You can see gravity.

• True
• False

What does gravity depend on?

• Matter

• Mass

• Force

• Gravitational Pull

What is matter?

• the force that draws all objects in the universe toward each other

• an object or area in space that has such strong gravity that not even light can escape from it

• the force or pull created by the mass of objects in the universe toward each other

• the substances all objects on Earth are made of; all substances that take up space

What effect does the moon's gravity have on Earth?

• It causes Earth to spin faster.

• It makes plants grow taller.

• It causes tides in the oceans.

• It changes Earth's temperature.

Why would an astronaut weigh less on the moon than on Earth?

• The moon is made of lighter materials.

• Astronaut suits are lighter on the moon.

• Astronauts lose weight during space travel.

• The moon has less mass than Earth, so its gravity is not as strong.