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

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This Game Reviews Concepts From Chapter 2 Of Your Text--Motion.[print questions]

**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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