Deck 1: The Study of Motion

Question 1

The metric prefix that means one thousand is milli-.

Answer 1

False

Question 2

The proper abbreviation for 'kilohertz' is 'kHz.'

Answer 2

True

Question 3

Uniform motion is any motion at constant speed.

Answer 3

False

Question 4

The terms velocity and speed have identical meanings in physics.

Question 5

The time for one complete cycle of a periodic process to take place is called the period.

Question 6

Motion in a circle at constant speed is motion with constant velocity.

Question 7

A body at the end of a spring oscillates up and down ten times in five seconds.The period of oscillation is 2 s.

Question 8

The proper abbreviation for 'grams' is 'g.'

Question 9

The number of cycles of a periodic process that occur per unit time is called the period.

Question 10

A vector quantity has only a magnitude and no direction associated with it.

Question 11

Motion in a circle at constant speed is motion with constant acceleration.

Question 12

The proper abbreviation for 'seconds' is 'sec.'

Question 13

If an object's speed is constant,its velocity must also be constant.

Question 14

If an object's velocity is constant,its speed must also be constant.

Question 15

The period of oscillation for a signal having a frequency of 60 Hz is 60 seconds.

Question 16

The second is a metric unit of measure.

Question 17

The maximum possible speed in nature is the speed of light.

Question 18

There are one thousand megabytes in a gigabyte.

Question 19

Twenty milliseconds is 0.020 s.

Question 20

Experimenting is part of the scientific method.

Question 21

The slope of a velocity vs.time graph is the acceleration.

Question 22

If an object's acceleration is positive,its speed must be increasing.

Question 23

As the ball is going downwards the velocity and acceleration both point down.

Question 24

The figure shows a distance versus time graph for an object.
The velocity of the moving object is a non-zero constant.

Question 25

The figure shows a distance vs.time graph of an object with three distinct regions,I,II,and III. ​
The object's acceleration is negative in region III.

Question 26

The figure shows the distance versus time graph of an object.
The acceleration of the moving object is a non-zero constant.

Question 27

The figure shows a distance vs.time graph of an object with three distinct regions,I,II,and III. ​
The object's speed is greatest in region I.

Question 28

The figure shows a distance versus time graph for an object.
The acceleration of the moving object is a non-zero constant.

Question 29

The figure shows the distance versus time graph of an object.
The velocity of the moving object is a non-zero constant.

Question 30

The figure shows a distance vs.time graph of an object with three distinct regions,I,II,and III. ​
The object's velocity is never negative.

Question 31

The figure shows a distance vs.time graph of an object with three distinct regions,I,II,and III. ​
The object's velocity is zero in region II.

Question 32

At the peak of the motion the velocity and acceleration are both zero.

Question 33

As the ball is going upwards the velocity and acceleration both point up.

Question 34

The figure shows a distance vs.time graph of an object with three distinct regions,I,II,and III. ​
The object is never at rest.

Question 35

The figure shows a distance vs.time graph of an object with three distinct regions,I,II,and III. ​
The object's acceleration is zero only in region II.

Question 36

The slope of a distance vs.time graph is the acceleration.

Question 37

The figure shows a distance vs.time graph of an object with three distinct regions,I,II,and III. ​
The object's velocity is positive in region II.

Question 38

An aircraft approaches a runway that runs directly east as a strong wind blows out of the south.The direction that the aircraft should aim in order to land is east of north.

Question 39

An object moving in a circle undergoes centripetal acceleration.

Question 40

A fast-moving body must have a larger acceleration than a slow-moving body.

Question 41

What is the proper abbreviation for 'kilohertz?'

A)kh
B)khz
C)Khz
D)KHz
E)kHz

Question 42

What is the proper abbreviation for 'seconds?'

A)sec
B)There is none.It should always be spelled out.
C)secs
D)s
E)none of the above

Question 43

Fifteen microseconds is

A)0.0000015 s.
B)0.000015 s.
C)0.00015 s.
D)0.015 s.
E)15000000 s.

Question 44

A racecar driver steps on the gas,changing his speed from 10 m/s to 30 m/s in 4 seconds.The acceleration of the racecar is 10 m/s².

Question 45

Two microcuries is

A)200,000 Ci.
B)0.0002 Ci.
C)0.00002 Ci.
D)0.000002 Ci.
E)0.00000002 Ci.

Question 46

When a body moves in circular motion at constant speed the velocity and acceleration point in opposite directions.

Question 47

Twenty milliseconds is

A)0.00002 s.
B)0.0002 s.
C)0.002 s.
D)0.02 s.
E)20000 s.

Question 48

Twenty kilometers is

A)200,000 m.
B)20,000 m.
C)2,000 m.
D)200 m.
E)0.02 m.

Question 49

A racecar goes around a 200 m radius curve at a constant speed of 40 m/s.Its acceleration is 8 m/s².

Question 50

In expressions like Δv and Δt,Δ stands for

A)"change in".
B)"triangle".
C)a constant of proportionality.
D)a variable.

Question 51

The acceleration after starting from rest is 8 m/s².

Question 52

Which metric prefix means one thousand?

A)milli-
B)centi-
C)one-
D)kilo-
E)mega-

Question 53

A racecar driver steps on the gas,and his racecar travels 20 meters in 2 seconds starting from rest.The acceleration of the racecar is 5 m/s².

Question 54

The distance from the starting point is 16 m.

Question 55

The number of cycles of a periodic process that occur per unit time is called

A)amplitude.
B)frequency.
C)period.
D)wavelength.
E)speed.

Question 56

The velocity acquired after starting from rest is 8 m/s.

Question 57

Which of these are fundamental physical quantities?

A)space,time,and matter
B)kilograms,seconds,and meters
C)length,time,and mass
D)momentum,energy,and mass

Question 58

How many megabytes are there in a gigabyte?

A)10
B)1000
C)1000000
D)none of the above

Question 59

What is the proper abbreviation for 'grams?'

A)g
B)gms
C)gm
D)gr
E)kg

Question 60

The time for one complete cycle of a periodic process to take place is called

A)amplitude.
B)frequency.
C)period.
D)wavelength.
E)speed.

Question 61

The slope of a velocity vs.time graph is the

A)distance.
B)velocity.
C)acceleration.
D)none of the above

Question 62

The figure shows a distance vs.time graph of an object with three distinct regions,I,II,and III. ​
The object's velocity is negative in region(s)

A)I.
B)II.
C)III.
D)no regions

Question 63

The slope of a distance vs.time graph is the

A)distance.
B)velocity.
C)acceleration.
D)none of the above.

Question 64

The figure shows a distance versus time graph for an object.
The acceleration of the moving object is

A)zero.
B)constant.
C)increasing.
D)decreasing.
E)not determinable.

Question 65

An object moving in a circle undergoes

A)constant acceleration.
B)free fall.
C)centripetal acceleration.
D)linear acceleration.
E)frequency.

Question 66

The figure shows a distance vs.time graph of an object with three distinct regions,I,II,and III. ​
The object's acceleration is negative in region(s)

A)I.
B)II.
C)III.
D)no regions

Question 67

The figure shows a distance versus time graph for an object.
The velocity of the moving object is

A)zero.
B)constant.
C)increasing.
D)decreasing.
E)not determinable.

Question 68

The figure shows the distance versus time graph of an object.
The velocity of the moving object is

A)zero.
B)constant.
C)increasing.
D)decreasing.
E)not determinable.

Question 69

The figure shows a distance vs.time graph of an object with three distinct regions,I,II,and III. ​
The object's speed is greatest in region(s)

A)I.
B)II.
C)III.
D)no regions

Question 70

What is the period of a signal that has a frequency of 60 Hz?

A)60 s
B)60 s¯¹
C)1/60 s
D)not determinable

Question 71

The figure shows a distance vs.time graph of an object with three distinct regions,I,II,and III. ​
The object's velocity is zero in region(s)

A)I.
B)II.
C)III.
D)no regions

Question 72

An aircraft approaches a runway that runs directly east as a strong wind blows out of the south.The direction that the aircraft should point in order to land on the runway is

A)north.
B)east of north.
C)east.
D)south of east.
E)south.

Question 73

Motion in a circle at constant speed is motion with

A)constant acceleration.
B)constant velocity.
C)both of the above
D)none of the above

Question 74

If the velocity of an object is negative,

A)its speed is decreasing.
B)its velocity does not exist.
C)it is reversing direction.
D)it is moving in the direction labeled negative.

Question 75

The figure shows the distance versus time graph of an object.
The acceleration of the moving object is

A)zero.
B)constant.
C)increasing.
D)decreasing.
E)not determinable.

Question 76

Instantaneous speed and average speed are equal

A)always.
B)for motion at constant speed.
C)for accelerated motion.
D)never.

Question 77

GPS stands for

A)the metric system of measurement.
B)grams per second.
C)Global Positioning System.
D)a space shuttle.
E)none of the above.

Question 78

A body at the end of a spring oscillates up and down ten times in five seconds.The period of oscillation is

A)0.5 s.
B)2 s.
C)5 s.
D)10 s.
E)not determinable.

Question 79

The figure shows a distance vs.time graph of an object with three distinct regions,I,II,and III. ​
The object's velocity is positive in region(s)

A)I.
B)II.
C)III.
D)no regions

Question 80

The figure shows a distance vs.time graph of an object with three distinct regions,I,II,and III. ​
The object is at rest in region(s)

A)I.
B)II.
C)III.
D)no regions