# SCI 155 Chap 2b Question Preview (ID: 9049)

### This Game Reviews Concepts From Chapter 2 Of Your Text--Motion.[print questions] Answers? Play games to get them!

The equation (distance / time) represents
a) density
b) acceleration
c) speed
d) momentum

The equation (change in velocity / time) represents
a) density
b) acceleration
c) speed
d) momentum

The equation (mass x velocity) represents
a) density
b) acceleration
c) speed
d) momentum

When an object is in free fall, its velocity is
a) constant
b) increasing
c) decreasing
d)

When an object is in free fall, its acceleration is
a) constant
b) increasing
c) decreasing
d)

A ball rolling across the floor slows to a stop because
a) there is a net force acting on it
b) the net force equals zero
c) the forces are balanced
d) the force that started it moving wears out

What is the acceleration if a car goes from 8 mi/h to 20 mi/h in 2 seconds?
a) 4 mi/h/s
b) 6 mi/h/s
c) 10 mi/h/s
d)

A moving car has momentum. If it moves three times as fast, its momentum will
a) stay the same
b) triple
c) cut in three
d) go to zero

To measure an object's inertia, you would measure its
a) volume
b) mass
c) speed
d)

The force that keeps an object moving in a circular path is
a) centrifugal
b) net
c) centripetal
d) inertia

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