4/12 Force & Motion Review

4/12 Force & Motion Review

Review

• Force=Push or pull

• Push=Moves things away

• Pull=Moves things closer or picking something up

• Balanced force=Equal and opposite directions. NO MOTION!

• Unbalanced force=2 or more forces where one force is stronger. MOTION!

Review

• Gravity=A force that pulls an object towards another object

• Mass=Not affected by gravity. Always stays the same.

• Weight=Changes based on where it is located

• Friction=The force that slows down an object that is rubbing on a surface

Multiple Choice

What is a PUSH or PULL of an object?

• Motion
• Force
• Friction
• Gravity

Multiple Choice

Which requires more force to move it?

• A heavy object, like a bowling ball.

• A light object, like a tennis ball

Multiple Choice

When you pick things up, you're _______.

• pushing

• pulling

Multiple Choice

A pull moves things _______ .

• Close to you

• Away from you

Multiple Choice

A push moves things _______ .

• Close to you

• Away from you

Multiple Choice

Imagine you kick four balls with the same amount of force. Which one will go the farthest?

• a 3 pound ball

• a 5 pound ball

• a 15 pound ball

• a 25 pound ball

Multiple Choice

Which of the following would it take the most force to move?

• a 3-pound ball

• a 5 pound ball

• a 15 pund ball

• a 25 pound ball

Multiple Choice

Why is it harder for the boy in Image B to get down the hill?

• Motion
• Friction
• Work
• Displacement