Forces that are equal but opposite are called
A. Net force
B. Friction
C. Centripetal force
D. Balanced forces

Which of the following objects has the
greatest inertia?
A. A parked car
B. A baseball during a home run
C. A textbook sitting on a desk
D. A woman running on the sidewalk

John participated in a marathon in which he came
in first place. He ran 5 miles at a speed of ten
minutes per mile. How long did it take John to
finish the marathon?
A. 2 minutes
B. 15 minutes
C. 50 minutes
D. 500 minutes

It is harder to push a full shopping cart than an
empty one. Which of Newton’s laws does this
describe and why?
A. 1st
B. 2nd
C. 3rd
D. 1st and 2nd

A: 4
B: 9
C: 3
D: 8