1. Motion Review

2. Motion Review What unit do scientists use for force?
What 2 things affect the weight of an object?
Name a contact force.

3. Motion Review If a dog weighs 50 N on Earth, what is his mass?
Would you weigh more on the moon or on Earth? Why?
Would your mass change if you move from one planet to another?

4. Motion Review What do we call a force that resists motion?
A refrigerator box is being pushed by a moving woman with a force of 300 N. If there is a friction force of 50 N, what is the net force on the box?

5. Motion Review
What is an example of something that is done to an object to increase friction?
How can you reduce the amount of friction between 2 objects?
How does friction affect the speed of a moving object?

6. Motion Review
What term do we use to describe all the forces acting on an object?
When all the forces on an object are equal, we say that object is in _______.
What will the net force of an object be if it is not moving?

7. Motion Review
Determine whether Newton’s 1st or 2nd Law describes what is happening in the situation.
A car sits motionless on the street.
Bowser accelerates slower than Koopa Troopa in Mariokart
The harder I push a person on the swing the faster they will go.