Pop Quiz Forces and Motion Wednesday 4/26/23

Pulling a wagon with bricks in it is more difficult that pulling an empty wagon. This obeys which of Newton’s Laws?

• a. Newton’s First Law of Motion
• b. Newton’s Second law of Motion
• c. Newton’s Third Law of Motion

Andrew began driving at 9:00 AM and traveled without stopping for 100 miles to Miami, Florida. If you wanted to calculate Andrew’s average speed, what information would you need?

• a. The direction Andrew drove.
• b. The time Andrew arrived in Miami. (Then Calculate Distance/Time)
• c. The initial speed and the final speed Andrew drove.
• d. The type of vehicle Andrew was driving.

Acceleration can be a change in speed or

• a. Friction
• b. Velocity/Direction
• c. Time
• d. Force

Standing on the ground and the ground pushing up at your feet obeys which of Newton’s Laws?

• a. Newton’s First Law of Motion
• b. Newton’s Second law of Motion
• c. Newton’s Third Law of Motion

11. Michael and Jeff are trying to move a new refrigerator into the kitchen. Michael pushed with 350 Newtons of force forward and Jeff pushed with 300 Newtons forward. What is the Net Force? Is this balanced or unbalanced?

Compare balanced and unbalanced forces. Which one has motion or movement?