Over to the Moon

How many people have actually been on the moon?

• 12
• 16
• 20
• 24

The natural pull of objects toward each other is called ___

• gravity
• magnetism
• stickiness
• attractiveness

The speed needed to overcome the force of Earth's gravity is called ___

• the freedom force
• the break-out speed
• the escape velocity
• the release trajectory

A push of pull acting on an object is called ___

• gravity
• a force
• momentum
• energy

"Mass" is a measure of ___

• how large an object is
• how far an object can be thrown
• how fast an object will move
• how much matter is in an object

The farther away something is from the Earth ___

• the less it will feel the pull of Earth's gravity
• the more it will feel the pull of Earth's gravity
• the faster it can go
• the slower it will go

The closer an object gets to the Moon, ___

• the less it will feel the Moon's gravity pulling on it
• the more it will feel the Moon's gravity pulling on it
• the heavier it will get
• the lighter it will get

Shooting stars are actually pieces of rock that have broken off from passing ___

• comets or asteroids
• planets or asteroids
• comets or planets
• stars or planets

A meteor is a rock that has ___

• been caught in Earth's gravity
• been caught in the Moon's gravity
• collided with Earth's surface
• collided with the Moon's surface

Which two things affect the pull of gravity?

• the size of the objects and the resistance between them
• the density of the objects and their speed
• the mass of the objects and the distance between them
• the mass of the objects and their escape velocities