Force
Magnetism
Friction
More Gravity
Gravity
100
If more force is applied, an object will move ________.
What is faster?
100
The ends of a magnet are called ________.
What is poles.
100
Friction makes an object ________.
What is slow down or stop?
100

Why do astronauts appear weightless?

They are in free fall around Earth.

100
true or false: gravity is a pushing force.
What is false
200
a force is either a push or _________.
What is pull
200
Where on a magnet is magnetism the strongest?
What is the ends.
200

Which force slows down objects when they slide or roll?

Friction.

200

What causes tides on Earth?

The moon and sun’s gravitational pull.

200
Gravity pulls object towards ______________.
What is the center of the earth.
300
True or False: magnetism, gravity, and friction are all examples of force.
What is true.
300
Two unlike poles will ________ each other.
What is repel?
300
When you are riding a bike, name the part of the bike that creates friction that makes you slow down and stop.
What is the brakes?
300

What is weight?

The force of gravity acting on an object’s mass.

300

what would happen to you if you were jumping on a trampoline and there was no gravity.

What is float

400
a force is needed to start an object ___________.
What is moving
400
Magnetism causes magnets to pull on certain _____, such as iron.
What is metals?
400
True or false: There is less friction when you slide down an icy hill than when you slide down a snowy hill.
What is true?The icy surface is more smooth, so there is less friction.
400

What happens to gravity as the distance between two objects increases?

It gets weaker.

400

If you went to a planet with less mass than Earth, how would your weight change?

It would decrease.

500
an object moves in the ______________ that it is pushed or pulled.
What is direction.
500
True or False: Magnetism is a pulling force only.
What is FALSE!! Magnetism is both a pushing and a pulling force.
500
When we rub our hands together to create friction, we are also creating _____.
What is heat?
500

What is the acceleration due to gravity?

A) about 9.8 m/s2
B) about 1 m/s2
C) about 20 m/s2


A) about 9.8 m/s2

500
True or false: Gravity helps make planes fly.
What is FALSE!! Gravity would pull a plane down out of the air. The engine, motors and the wings of a plane help it to fly.
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