1. Newton’s first law of motion states that an object stays at rest unless a(n) ____ acts on it. A. strong force B. balanced force C. gravitational.

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Presentation transcript:

1. Newton’s first law of motion states that an object stays at rest unless a(n) ____ acts on it. A. strong force B. balanced force C. gravitational force D. unbalanced force

2. Which one of the following objects has the greatest inertia. A 2. Which one of the following objects has the greatest inertia? A. golf ball B. bowling ball C. tennis ball D. ping pong ball

A force is which one of these. A. a push B. a pull C. a push or pull D A force is which one of these? A. a push B. a pull C. a push or pull D. neither of these

4. Force is measured in which units. A. degrees B. meters C. grams D 4. Force is measured in which units? A. degrees B. meters C. grams D. newtons

5. A force is exerted on a box and an equal and opposite force is exerted by the box. What explains this? A. Newton’s third law of motion B. Newton’s first law of motion C. Newton’s second law of motion D. Conservation of energy

6. A person in a head-on car collision who is not wearing a seat belt continues to move forward at the original speed of the car because of ____. A. gravity B. friction C. inertia D. weight

7. Two figure skaters who push off of each other will move at the same speed if a. they push with the same force. b. the ice does not cause any friction. c. there is no air resistance. d. they have the same mass.

8. The force that pulls falling objects toward Earth is called a 8. The force that pulls falling objects toward Earth is called a. gravity. b. free fall. c. acceleration. d. air resistance.