Forces and Motion Review

push or pull on an object

• net force

• friction

• mass

• force

is a pattern created by an object that helps predict future movement

• unbalanced force

• patterns of motion

• Newton

• mass

occurs when one force is stronger than another.

• balanced force

• unbalanced force

• net force

• gravity

is the sum or difference of all the forces acting on an object.

• friction

• mass

• net force

• gravity

is the unit of measure of the amount of force used on an object.

• Newton

• gram

• meter

• pound

 is the force that pulls objects towards the center of the earth.

• Friction

• Balanced Forces

• Net Force

• Gravity

occurs when no movement or change of motion takes place on an object.

• Unbalanced Force

• Friction

• Balanced Force

• Mass

the amount of matter or substance that makes up an object

• Weight

• Mass

• Gravity

• Force

is a force that opposes motion and acts between two objects that are touching.

• Friction

• Mass

• Gravity

• Net Force

A golf ball rolls down a ramp, across the floor, and into a hole on the floor. The ball crashes into the flag with a force of 50 newtons (N). The flag does not move. How much force does the flag exert when the collision happens?

• The flag does not exert a force because it is stuck solid in the ground.

• more than 50 N

• 50N

• less than 50N