Which statement illustrates Newton's first law?
a. A stone will not move unless something pushes or pulls it.
b. A ball rolling across the floor eventually slows down.
c. As a car comes to a stop, the passengers continue to move forward.
d. All of the above.
Which object has the greatest inertia?
a. a tennis ball
b. a bowling ball
c. a beach ball
d. a volleyball
What force causes a skater sliding on the ice to gradually slow down?
a. a balanced force
A seat belt helps you when your car stops suddenly by providing a(n)
a. balanced forward force.
b. unbalanced forward force.
c. balanced backward force.
d. unbalanced backward force.
If an equal force is applied to two cars of equal mass, Car A and Car B, Car A will have _____________ acceleration as (than) Car B.
a. the same
d. the opposite
The gravitational force between two objects depends on masses of objects and
a. accelerations of objects.
b. distance between objects.
c. speeds of objects.
d. sizes of objects.
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