Deck 1: The Study of Motion

Question 1

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

Answer 1

True

Question 2

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

Answer 2

False

Question 3

Experimenting is part of the scientific method.

Answer 3

True

Question 4

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

Question 5

The terms velocity and speed have identical meanings in physics.

Question 6

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

Question 7

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

Question 8

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

Question 9

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

Question 10

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

Question 11

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

Question 12

Uniform motion is any motion at constant speed.

Question 13

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

Question 14

The second is a metric unit of measure.

Question 15

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

Question 16

The metric prefix that means one thousand is milli-.

Question 17

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 18

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

Question 19

There are one thousand megabytes in a gigabyte.

Question 20

Twenty milliseconds is 0.020 s.

Question 21

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

Question 22

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

Question 23

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

Question 24

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

Question 25

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 26

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

Question 27

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

Question 28

An object moving in a circle undergoes centripetal acceleration.

Question 29

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 30

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

Question 31

A ball thrown upwards reaches a maximum height and then comes back down to the original level. 
At the peak of the motion the velocity and acceleration are both zero.

Question 32

A ball thrown upwards reaches a maximum height and then comes back down to the original level. 
As the ball is going upwards the velocity and acceleration both point up.

Question 33

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

Question 34

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 35

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 36

A ball thrown upwards reaches a maximum height and then comes back down to the original level. 
As the ball is going downwards the velocity and acceleration both point down.

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 never negative.

Question 38

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 39

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 40

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 41

Twenty milliseconds is

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

Question 42

The acceleration of a ball as it rolls down a ramp is 4 m/s². The ball is referred to 2 s after it starts to roll. 
The acceleration after starting from rest is 8 m/s².

Question 43

How many megabytes are there in a gigabyte?

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

Question 44

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 45

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 46

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

Question 47

Fifteen microseconds is

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

Question 48

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 49

In expressions like Δ v and Δ t , Δ stands for

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

Question 50

What is the proper abbreviation for 'kilohertz?'

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

Question 51

The acceleration of a ball as it rolls down a ramp is 4 m/s² . The ball is referred to 2 s after it starts to roll. 
The distance from the starting point is 16 m.

Question 52

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 53

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 54

Twenty kilometers is

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

Question 55

Which metric prefix means one thousand?

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

Question 56

The acceleration of a ball as it rolls down a ramp is 4 m/s². The ball is referred to 2 s after it starts to roll. 
The velocity acquired after starting from rest is 8 m/s.

Question 57

What is the proper abbreviation for 'grams?'

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

Question 58

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

Question 59

Two microcuries is

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

Question 60

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 61

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 62

The slope of a distance vs. time graph is the

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

Question 63

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 64

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 65

An object moving in a circle undergoes

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

Question 66

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 67

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 68

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 69

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 70

The sum of vectors A and B is

A)
B)
C)
D)

Question 71

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 72

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 73

Instantaneous speed and average speed are equal

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

Question 74

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

Question 75

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 76

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 77

The slope of a velocity vs. time graph is the

A) distance.
B) velocity.
C) acceleration.
D) 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 negative in region(s)

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

Question 80

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.