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Intro to Physics Final Review

Total questions: 90

Worksheet time: 2hrs 59mins

Name
Class
Date
1.
if the graph of the velocity vs. time of a particle is plotted, the slope will give the particle's
a)
kinetic energy
b)
inertia
c)
momentum
d)
acceleration
2.
All of the following are vector quantities except

a)
force
b)
displacement
c)
torque
d)
weight
3.
Changes in our speed, direction, or both are called _________.
a)
gravity
b)
changes
c)
acceleration
d)
deceleration
4.
When are you undergoing an acceleration in a car? 
a)
speed up
b)
slow down
c)
make turns
d)
All of these
5.
A car accelerates from a standstill to 70 m/s in 10 seconds.  What is the acceleration?
a)
0.7m/s2
b)
7m/s2
c)
14m/s2
d)
none of the above
6.
A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
7.
The picture of the position vs. time graph shows an object that is...
a)
accelerating/speeding up
b)
moving at a constant speed 
c)
not moving 
d)
accelerating/slowing down. 
8.
Which graph represents zero acceleration (constant velocity)?
a)
A
b)
B
c)
C
d)
D
9.
Which graph represents the greatest acceleration?
a)
A
b)
B
c)
C
d)
D
10.
Describe the speed of the object from 5-6 seconds using the speed vs. time graph.
a)
Speeding up
b)
Slowing down
c)
Not moving
d)
Constant speed
11.
What is friction?
a)
a force that causes uncontrollable slipping. 
b)
a force that opposes the sliding motion between two touching surfaces. 
c)
friction is a force for good
12.
Which type of force(s) will cause a change in an object's motion?
a)
equal forces
b)
zero net force
c)
balanced forces
d)
unbalanced forces
13.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
14.
At which point is kinetic energy greatest?
a)
W
b)
X
c)
Y
d)
Z
15.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
16.
You push a 10 kg cart and it accelerates at 2 m/s2. With what force did you push?
a)
2 Newtons
b)
5 Newtons
c)
10 Newtons
d)
20 Newtons
17.
If you exert a force of 20 N to push a desk 10 M, how much work did you do to the desk?
a)
20 N
b)
200 N
c)
200 J
d)
2 J
18.
Choose the BEST example of acceleration.
a)
A motorcycle slowing from 10km per hour to 5km per hour in 3 seconds.
b)
A runner moving at 5km/hr for 1 hour
c)
A ball rolling at 5km/hr for 100km
d)
A biker moving at 20km/hr for 5km
19.
Two classes are playing tug-of-war and both classes are not moving.  How would you describe the forces?
a)
Balanced
b)
Unbalanced
c)
Combined
d)
Net Force
20.
Two classes are playing tug-of-war and the class on the left applies more force.  How would you describe the resulting action?
a)
the left side is pulled with constant speed
b)
the right side is pulled with increasing speed
c)
the right side is pulled with constant speed
d)
the left side is pulled with increasing speed
21.
An object with a mass of 10 kg is accelerated upward at 2 m/s2.  What force is required? (Hint: F = ma)
a)
20 N
b)
2 N
c)
5 N
d)
0 N
22.
As the acceleration of an object increases, what happens to the force of the object? 
a)
Force increases
b)
Force decreases
c)
Force remain the same
d)
Mass increases
23.
In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.  What is the net force?
a)
50N to the left.
b)
350N to the left.
c)
350N to the right.
d)
50N to the right.
24.
A force of 250 N is applied to an object that accelerates at a rate of 5 m/sec2.  What is the mass of the object?
a)
100kg 
b)
1,250kg
c)
50kg
d)
5kg
25.
Which situation is work not done?
a)
lifting a 20 pound box off the floor
b)
holding a 20 pound box above the floor
c)
sliding a 20 pound box across the floor
d)
sliding a 20 pound box up an inclined plane
26.
A person steps out of the boat and onto the dock.  As the person moves forward onto the dock, the boat moves backward.  Which statement best describes the backward motion of the boat as the person steps forward?
a)
For every action there is an equal and opposite reaction.
b)
Every mass exerts a force on every other mass.
c)
An object at rest tends to stay at rest.
d)
Friction opposes the motion of an object.
27.
Pushing  a child on a swing is easier than pushing an adult on the same swing. 
a)
1st Law 
b)
2nd Law
c)
3rd Law
d)
4th Law
28.
What Newton's law does this picture represent?
a)
Newtons 2nd law 
b)
Law of gravity 
c)
Newtons 1st law
d)
Newtons 5th law
29.
On a cold winter day, Delia puts logs into a fireplace. Then she strikes a match and sets the logs on fire. As the fire burns, which two forms of energy are released?
a)
Light and Thermal
b)
Chemical and Light
c)
Thermal and Electrical
d)
Electrical and Chemical
30.
The image demonstrates which of Newton's Laws?
a)
Inertia
b)
F=ma
c)
action/reaction
d)
gravity
31.

What kind of circuit has the same voltage in each path, but there is more than one path for electrons to flow through?

a)

open

b)

series

c)

closed

d)

parallel

32.

What type of current has a property that has little voltage loss across long distances?

a)

DC

b)

AC & DC

c)

neither AC or DC

d)

AC

33.

What is the mechanical advantage of a board that is 9 meters long and 3 meters high?

a)

2

b)

4

c)

3

d)

5

34.

The distance from the top of a wave to the bottom of a wave is called the

a)

amplitude

b)

frequency

c)

pitch

d)

wavelength

35.

Which type of circuit is arranged so that wires and a power source are in a single loop and there is only one path for electrons to flow?

a)

series

b)

parallel

c)

both series & parallel

d)

neither series or parallel

36.

You see lightning before you hear thunder because

a)

light waves can travel through a vacuum

b)

sound waves cannot travel through the air

c)

light waves travel faster than sound waves

d)

sound waves travel faster than light waves

37.

You can see an image of yourself in a mirror because light waves are

a)

diffracted

b)

reflected back at you

c)

refracted through air

d)

refracted to a focal point

38.

What does the Doppler Effect state?

a)

loudness of a moving source of sound is independent of the observer

b)

frequency of a moving source of sound is independent of the observer

c)

loudness of a moving source of sound is greater as it approaches the observer

d)

frequency of a moving source of sound is greater as it approaches an observer

39.

An object is thrown vertically upward with an initial speed of 15 m/s. What is the total time in the air?

a)

3 second

b)

1.5 seconds

c)

5 seconds

d)

3.5 seconds

40.

An 8-kg object is raised by a crane to the top of a building 20-meters in height. If it takes 50 seconds for the object to get to the top of the building, then how much power was needed?

a)

1600 watts

b)

3.2 watts

c)

32 watts

d)

200 watts

41.

A kg-m2/s2 is otherwise known as a(n)

a)

Newton

b)

Joule

c)

Watt

d)

Displacement

42.
Calculate the work needed to raise a 3 kg cat up to a height of
4 m.
a)
12 J
b)
0 J
c)
120 J
d)
1.22 J
43.
Calculate the PE of a 2 kg cat perched 10 meters above the ground. 
a)
20 J
b)
200 J
c)
2.04 J
d)
200 W
44.
Calculate the Kinetic Energy (KE) of a girl whose mass is 50 kg who is moving at 4 m/s.
a)
200 J
b)
800 J
c)
400 J
d)
100 J
45.
Sue lowers a stack of books with a mass of 20 kg over a distance of 2 meters.  Calculate work.
a)
400 J
b)
-40 J
c)
-400 J
d)
-20 J
46.
A 10.0 kg box is accelerated from 2.0 m/s to 4.0 m/s.  What is the amount of work in joules needed to accelerate the box?
a)
50.0
b)
60.0
c)
20.0
d)
45.0
47.
The work-kinetic energy theorem says that the net work done by all the forces acting on an object is equal to the change in the object's _____.
a)
mechanical energy
b)
work
c)
momentum
d)
kinetic energy
48.
As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy? 
a)
Both the potential energy and kinetic energy decrease
b)
The potential energy decreases while the kinetic energy increases 
c)
The kinetic energy decreases while the potential energy increases 
d)
Bothe the potential energy and kinetic energy increase 
49.
An inclined plane wrapped around a rod forms this simple machine 
a)
lever
b)
pulley
c)
screw
d)
wedge 
50.
An axe is an example of a
a)
pulley
b)
inclined plane
c)
screw
d)
wedge 
51.
A seesaw is an example of a  
a)
wedge
b)
lever 
c)
inclined plane 
d)
pulley 
52.
A device that has two or more simple machines working together 
a)
fulcrum 
b)
pulley
c)
compound (complex) machine 
d)
motor 
53.
Stairs
a)
wedge
b)
pulley
c)
inclined plane
d)
wheel and axle
54.
What type of simple machine is this?
a)
wheel and axle
b)
gear
c)
lever
d)
inclined plane
55.
65 miles per hour North is an example of an objects what?
a)
Speed
b)
Velocity
c)
Average Speed
d)
Constant Speed
56.
Speed is different from velocity because
a)
Velocity has a direction
b)
Speed uses Distance /Time
c)
Velocity doesn't include time
d)
Velocity doesn't include distance
57.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
58.

Heat would best be transferred by conduction between

a)

a candle and the air

b)

an oven and a glass dish

c)

a stove and a copper pot

d)

water and a wooden spoon

59.

Which of the following represents Ohm's Law?

a)

I = V/R

b)

I = V x R

c)

I = V + R

d)

I = V - R

60.

Refraction takes place when a light wave changes

a)

color

b)

frequency

c)

intensity

d)

speed

61.

A weight hanging from a spring will remain hanging until the weight is pulled down and released. Which of Newton's laws does this represent?

a)

3rd law - bounce is the action force

b)

1st law - spring is remaining at rest

c)

2nd law - weight was not pulled hard enough to keep the spring moving

d)

1st law - spring is at rest and pulling the weight supplies the force needed to start it moving

62.

When voltage increases and resistance remains constant what must happen to current?

a)

decreases

b)

increases

c)

remains the same

d)

not affected by voltage and resistance

63.

How does the Doppler effect explain the sound you hear when a race car comes toward and then passes a camera?

a)

The pitch is higher as it approaches and then becomes lower the

moment it passes.

b)

The pitch is lower as it approaches and then becomes higher the

moment it passes.

c)

The sound is louder as it approaches and then becomes softer the

moment it passes.

d)

The sound is softer as it approaches and then becomes louder the

moment it passes.

64.

What is another name for mechanical waves, like sound waves?

a)

transverse waves

b)

pressure waves

c)

longitudinal waves

d)

electromagnetic waves

65.

Light waves

a)

do not require a medium

b)

cannot travel in a vacuum

c)

are not electromagnetic radiation

d)

do not travel in a straight lines from the source

66.

The speed of a note created by a flute will increase as the speed of sound increases. When a marching band goes outside on a cold day, what would you predict would happen to the note played on a flute?

a)

It would decrease because the speed of sound and temperature are

proportional.

b)

It would increase because the speed of sound and temperature are

proportional.

c)

It would decrease because the speed of sound and temperature are

inversely proportional.

d)

It would increase because the speed of sound and temperature are

inversely proportional.

67.

What do we call the distance that can be measured from crest to crest or trough to trough on a wave?

a)

amplitude

b)

crest

c)

trough

d)

wavelength

68.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
69.
This is an example of a _______ circuit
a)
open
b)
series
c)
parallel
d)
square
70.
If the voltage is increased and the resistance stays the same, current will ____.
a)
Increase
b)
Decrease
c)
Stay the same
d)
Not enough info
71.
If the voltage stays the same and resistance is increased, current will ________. 
a)
Increase
b)
Decrease
c)
Stay the same
d)
Not enough info
72.
Find total resistance
total current
and the voltage through resistor 3.
a)
60 Ohms, 0.4 A,  8 V
b)
60 Ohms, 2.5 A,  4 V
c)
90 Ohms, 2.5 A, 24 V
d)
60 Ohms, 0.4 A, 24 V
73.
What is the power of a 3V light bulb with 20 A running through it?
a)
0.15W
b)
6W
c)
60W
d)
6.67W
74.
If a battery produces 12.6 Volts, what would be the current for a 6 Ohm resistor?
a)
2.1 Amps
b)
75.6 Amps
c)
0.5 Amps
d)
15 Amps
75.
A light circuit is operating at 75 Volts. What is the circuit's current if the resistance is 5 Ohms?
a)
375 Amps
b)
50 Amps
c)
15 Amps
d)
0.07 Amps
76.

A water wave has a period of 0.25 seconds and a wavelength of 0.6 meters. What is the speed of the wave?

a)

2.4 meters

b)

0.15 meters

c)

0.85 meters

d)

2.1 meters

77.
The maximum distance that the particles of a medium move from the rest position is the
a)
Wavelength of the Wave
b)
Frequency of the Wave
c)
Amplitude of the Wave
d)
Speed of the Wave
78.
The distance between two corresponding parts of a wave is the wave’s
a)
Wavelength
b)
Frequency
c)
Amplitude
d)
Speed
79.
Waves that move the particles of the medium parallel to the direction in which the waves are traveling are called
a)
Surface Waves
b)
Combination Waves
c)
Longitudinal Waves
d)
Transverse Waves
80.
The interaction between two waves that meet is called
a)
refraction
b)
reflection
c)
diffreaction
d)
interference
81.
Waves combine to produce a smaller or zero-amplitude wave in a process called
a)
Destructive Interference
b)
Reflection
c)
Refraction
d)
Constructive Interference
82.
The crests and troughs of a standing wave are called ____________________.
a)
wavelength
b)
energy
c)
antinodes
d)
rarefaction
83.
           In a longitudinal wave moving along a spring, areas where the coils are farthest apart are called ____________________.
a)
interference
b)
Compression
c)
Rarefraction
d)
Diffraction
84.
           In ____________________ interference, the energy of the combined wave is greater than the energy of each of the two waves.
a)
constructive
b)
destructive
c)
rarefraction
d)
combination
85.
How can you measure the wavelength of a transverse wave?
a)
crest to crest
b)
amplitude (height of the wave)
c)
frequency of the wave in a given time
d)
Speed
86.
...the amount of time for one complete cycle of the wave.
a)
Frequency...
b)
Period...
c)
Wavelength...
d)
Mechanical...
87.
...the number of waves generated each second.
a)
Frequency...
b)
Period...
c)
Wavelength...
d)
Mechanical...
88.
Wave particles are perpendicular to the wave direction in ________waves.
a)
Transverse
b)
Longitudinal
89.
Compression waves are another name for __________ waves.
a)
Transverse
b)
Longitudinal
90.
What wave property is someone most likely asking about when they ask how "big" the waves are on the lake?
a)
Wave Length
b)
Wave Speed
c)
Wave Amplitude
d)
Wave Size

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