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Worksheets

Final Exam

Total questions: 100

Worksheet time: 4hrs 41mins

Name
Class
Date
1.

The metric base unit for mass is

a)

Meter

b)

Liter

c)

Gram

d)

pound

2.

The metric base unit for volume is_________.

a)

Meter

b)

Liter

c)

Gram

d)

quart

3.
What is the volume of  the rectangular prism
a)
330 millimeters
b)
330 cubic centimeters
c)
22 millmeters
d)
22 cubic centimeters
4.

0.98L = ________mL

a)

98

b)

0.98

c)

980

d)

9800

5.

Tracy brought a large pail to the beach. What might be the volume of the pail?

a)

200 mL

b)

200 L

c)

5 L

d)

5 mL

6.

What might be the best estimate of the length of a baseball bat?

a)

1 km

b)

1 cm

c)

1 m

d)

1 mm

7.

There are 1,500 milliliters in a bottle of laundry detergent. How many liters is this? (1L = 1,000mL)

a)

150L

b)

1.5L

c)

15L

d)

0.15L

8.

Which unit of measurement is the best choice for the capacity of the cooler?

a)

grams

b)

kilometers

c)

millilters

d)

liters

9.

Compared to 54 meters, 54 centimeters is:

a)

Larger

b)

Smaller

c)

The same

10.

A brick is taken to the moon. Which measure is different for the brick on the moon as compared to on the Earth?

a)

Its mass

b)

Its length

c)

Its volume

d)

Its weight

11.

What part of the wave is shown by line A?

a)

crest

b)

trough

c)

wavelength

d)

frequency

12.
Which part of the wave is shown at letter B?
a)
crest
b)
trough
c)
wavelength resting point
13.

Which part of the wave is shown by line C?

a)

crest

b)

wavelength

c)

resting point

d)

amplitude

14.

The time interval shown is 0.10 second. What is the frequency of this wave?

a)

3 Hertz

b)

4 Hertz

c)

5 Hertz

d)

50 Hertz

15.
When wavelength increases, what happens to the frequency?
a)
it increases
b)
it decreases
c)
it stays the same
16.

What is the speed of a wave that has a wavelength of 2.0 meters and a frequency of 3.0 Hz?

a)

2.5 m/s

b)

5 m/s

c)

4.5 m/s

d)

6 m/s

17.

The pitch of sound depends on

a)

frequency

b)

amplitude

c)

wavelength

18.

The loudness of sound depends on

a)

wavelength

b)

amplitude

c)

frequency

19.
What property of the wave is represented by the letter "B"?
a)
amplitude
b)
crest
c)
trough
d)
wavelength
20.

Which wave in the diagram has the smallest frequency?

a)

1

b)

2

c)

3

d)

4

21.

Which part of the wave is this?

a)

Crest

b)

Trough

c)

Compression

d)

Rarefaction

22.

In a longitudinal wave moving to the right, the particles move...?

a)

right and left

b)

up and down

c)

vertically

d)

in the direction of the hertz

23.

What kind of wave is pictured?

a)

compressional wave

b)

transverse wave

c)

sound wave

d)

mechanical wave

24.
Which type of wave is pictured here?
a)
Longitudinal
b)
Transverse
c)
Light 
d)
Electromagnetic
25.

When the car moves TOWARD you, its horn seems...

a)

Low pitched

b)

High pitched

c)

Normal

26.
What can you tell about this object's motion?
a)
Moving to the North (up).
b)
Moving to the South (down). 
c)
Moving to the West (left). 
d)
Moving to the East (right). 
27.
What can you tell about the motion of this object?
a)
Moving left.
b)
Moving right quickly.
c)
Standing still. 
d)
Moving up slowly. 
28.
What do the light waves of a galaxy that is moving AWAY from us look like?
a)
red shifted
b)
blue shifted
c)
green shifted
d)
yellow shifted
29.

Two transverse waves overlap.  Crests overlap with troughs and  troughs overlap with crests.  The waves are

a)

In-phase

b)

Out-of-phase

c)

In-synchronicity

d)

Out-of-synchronicity

30.
Two longitudinal waves overlap.  Compressions overlap with rarefactions.  The waves are
a)
In-phase
b)
Out-of-phase
c)
In-synchronicity
d)
Out-of-synchronicity
31.
If two overlapping waves are in-phase, the resultant wave will have ______ compared to the two waves.
a)
Greater amplitude
b)
Greater frequency
c)
Greater wavelength
d)
Greater wave speed
32.
Constructive interference will result if parts of overlapping waves are _____.
a)
In phase
b)
Out of phase
c)
Moving in opposite directions
d)
Moving at the same wave speed.
33.

Look at the diagram. At which positions will the overlapping waves have the most destructive interference?

a)

Positions #1 & #5

b)

Positions #2 & #3

c)

Positions #3 & #4

d)

Positions #4 & #5

34.

Given that Wavelength= 2.0m and Frequency= 150 hertz

Velocity= ________

a)

.75 m/s

b)

75 m/s

c)

300 m/s

35.

Given that Velocity= 12 m/s and Frequency= 600 hertz

Wavelength= __________

a)

7200 m

b)

0.02 m

c)

612 m

36.

A wave has frequency of 5.0 Hz and a wavelength of 10 m. What is the speed of the wave?

a)

500 m/s

b)

50 m/s

c)

5 m/s

d)

0.5 m/s

37.

An open pipe (pictured on the left) is 40 cm and makes a tone travelling at 330 m/s. Calculate the first harmonic wavelength.

a)

40 cm

b)

80 cm

c)

120 cm

d)

160 cm

38.

An open pipe (1.8 m long) makes a tone travelling at 330 m/s. Calculate its frequency for the 3rd harmonic.

a)

183.3 Hz

b)

234 Hz

c)

275 Hz

d)

594 Hz

39.

A violin string of length 0.54 m and wave speed of 565 m/s along it. Calculate the frequency of the 3rd harmonic.

a)

1046.3 HZ

b)

282.5 Hz

c)

2615.7 Hz

d)

1569.4 Hz

40.

Calculate the beat frequency if a 400 Hz and a 398 Hz sound are heard by Quinn.

a)

1 Hz

b)

2 Hz

c)

3 Hz

d)

4 Hz

41.
You move a 12-newton box up a 6-meter ramp. In order to find out how much power you created, what would you need to know?
a)
The mass of the box
b)
The slope of the ramp 
c)
The direction the box moved
d)
How long the task took
42.
How much work is being done with 200 N of force over 426 meters?
a)
85,200 J
b)
45,620 J
c)
90,480 J
d)
62,329 J
43.
If 150 Joules of work is needed to move a box 10 meters, what force was used? 
a)
1500 N
b)
15 N
c)
1.5 N
d)
150 N
44.
In which of these cases is work being done? 
a)
A student sleeps
b)
A student pushes a locked door that does not move
c)
a student carries his chair into another room
d)
A student sits on the carpet
45.

What would 54Joules be an example of?

a)

work

b)

power

c)

distance

d)

force

46.

To get the lowest pitch on a guitar string one should:

a)

Use the fattest, longest string with the least tension.

b)

Use the thinnest, shortest string with the most tension.

c)

Use the fattest longest string with medium tension.

d)

Use the thinnest longest string with medium tension.

47.

What is an example of a force?

a)

Energy

b)

Power

c)

Pressure

d)

Weight

48.

If you decrease your work and increase your time, you will have

a)

more power

b)

less power

c)

same amount of power

d)

power rating can not be determined

49.

An object of mass 10 kg is lifted to a height of 2.0 m. About how much work is done on the object?

a)

20 J

b)

200 J

c)

5. J

d)

50 J

50.

How much power is required to do 600 J of work in 3.0 s?

a)

200 W

b)

1200 W

c)

0.05 W

d)

603 W

51.

If 70 W of power is produced in 20 seconds, how much work is done?

a)

140 J

b)

90 J

c)

1400 J

d)

3.5 J

52.
the loudness of sound is determined by its______
a)
Frequency
b)
speed
c)
intensity
d)
wavelength
53.

Doubling the intensity of a sound results in an increase in loudness of:

a)

2 dB

b)

3 dB

c)

10 dB

d)

20 dB

54.

The threshold of hearing is:

a)

0 dB

b)

1 dB

c)

3 dB

d)

10 dB

55.

The smallest change in loudness that a human can detect is:

a)

0 dB

b)

1 dB

c)

3 dB

d)

10 dB

56.

In order to make a sound twice as loud, you must increase the sound level by:

a)

0 dB

b)

1 dB

c)

3 dB

d)

10 dB

57.

If the intensity of a sound is 16W/m2 at a distance of 1.0 meter from the source, the intensity 2.0 meters from the source will be:

a)

4 W/m2

b)

8 W/m2

c)

2 W/m2

d)

32 W/m2

58.

If the sound level produced by one horn at a location is

78 dB, the sound level produced by four identical horns at the same location is:

a)

75 dB

b)

81 dB

c)

84 dB

d)

82 dB

59.

During a physics lab, a plastic strip was rubbed with cotton and became negatively charged. The correct explanation for why the plastic strip becomes negatively charged is that ...

a)

the plastic strip acquired extra electrons from the cotton.

b)

the plastic strip acquired extra protons from the charging process 

c)

protons were lost by the plastic strip as the result of the charging process

d)

the plastic strip lost electrons to the cotton during the charging process 

60.
Insulators are different than conductors in that insulators ____.
a)
do not contain electrons or protons 
b)
 do not contain any charge
c)
have a weaker affinity for electrons 
d)
do not allow charge to freely move 
61.

When a plastic rod is rubbed with wool, the rod acquires a negative charge because

a)

protons are transferred from the wool to the rod

b)

protons are transferred from the rod to the wool

c)

electrons are transferred from the rod to the wool

d)

electrons are transferred from the wool to the rod

62.
A metal sphere having an excess of +5 elementary charges has a net electric charge of
a)
8.0 x 10-19 C
b)
8.0 x 1019 C
c)
1.6 x 10-19 C
d)
5.0 x 10-19 C
63.
Two like charges
a)
 neutralize each other.
b)
repel each other. 
c)
must be neutrons. 
d)
attract each other.
64.

What direction are the electric field lines around an electron?

a)

towards the charge

b)

away from the charge

c)

In a circle around the electron

d)

toward the electron on one side, and away on the other

65.
What does it mean when the electric field lines are close together?
a)
the field is positive
b)
the field is negative
c)
The field is strong
d)
the field is weak
66.

Which of the following labeled points is in the region with the strongest electric field?

a)

A

b)

B

c)

C

d)

D

67.

What is the electric force on a 5 coulomb charge in an electric field of 20 N/C?

a)

4 N

b)

100 N

c)

40 N

d)

10 N

68.
An electrostatic force of 2 X 102. newtons is exerted on a charge of 4 coulomb at point P in an electric field. The magnitude of the electric field intensity at P is
a)
8 X 102 N/C
b)
5 N/C
c)
2 X 10-2 N/C
d)
50 N/C
69.
Qand Qare two charges creating an electric field. Based on the electric field lines, we can conclude
a)
Qand Qare both positive
b)
Qand Qare both negative
c)
Qis positive and Qis negative
d)
Qis negative and Qis positive
70.
What is the magnitude of the electric field intensity at a point where a proton experiences an electrostatic force of magnitude 2.30 x 10-25 newton?
a)
1.44 x 10-6 N/C
b)
3.68 x 106 N/C
c)
1.44 x 1044 N/C
d)
3.68 x 10-44 N/C
71.

What is the definition of electric current?

a)

The ratio of potential difference across a component to the resistance of the component

b)

The power delivered by a battery per unit potential difference

c)

The rate of flow of electric charge

d)

The energy per unit charge dissipated in a power supply

72.

Which diagram represents the pattern of electric field lines of two small positive point charges held at the positions shown?

a)
b)
c)
d)
73.

Which net charge could not be found on an object?

a)

4.8 x 10-19 C

b)

1.6 x 10-19 C

c)

3.2 x 10-19 C

d)

2.8 x 10-19 C

74.

How many volts are needed to do 50 joules of work on a 2.0 Coulomb charge?

a)

100V

b)

25V

c)

0.04V

d)

52V

75.

Two parallel plates are 0.002 meters apart. If the plates are connected to a 8.0 volt battery, what will be the electric field strength between them?

a)

4000 V/m

b)

0.016 V/m

c)

2.5 x 10-4 V/m

d)

8.002 N/C

76.

The electric field between two oppositely charged parallel plates is directed from:

a)

the negative plate to the positive plate and strongest near the positive plate.

b)

the positive plate to the negative plate and strongest near the positive plate.

c)

the negative plate to the positive plate and the same strength everywhere between the plates.

d)

the positive plate to the negative plate and the same strength everywhere.

77.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
78.
What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?
a)
25 V
b)
10 V
c)
2.5 V
d)
0.4 V
79.

Current squared times Resistance (I2 R) equals

a)

Watts

b)

Volts

c)

Amperes

d)

Ohms

80.

The voltage supplied to a circuit is 17 V and the current running through is

10 A. What is the power generated?

a)

170 W

b)

170 A

c)

1.7 V

d)

1.7 W

81.

The length of a certain conductor of resistance 100Ω is doubled and its cross-sectional area is halved. Its new resistance is

a)

100Ω

b)

50Ω

c)

200Ω

d)

400Ω

82.

which has the highest current flowing through it?

a)

R1

b)

R2

c)

R3

d)

All the same

83.

Consider two copper wires of equal cross-sectional area. One wire has 3 times the length of the other. How do the resistivities of these two wires compare?

a)

Both wires have the same resistivity.

b)

The longer wire has 3 times the resistivity of the shorter wire.

c)

The longer wire has 9 times times the resistivity of the shorter wire.

d)

The longer wire has 27 times times the resistivity of the shorter wire.

84.

A charge of 48 C flows for 6s. What is the current?

a)

8 A

b)

288 A

c)

8 V

d)

288 V

85.

Magnetism is generated by a wire due to the motion of:

a)

protons.

b)

electrons.

c)

neutrons.

d)

elements.

86.
As the distance between two magnets increases (they get farther apart), the force between them:
a)
Increases
b)
Decreases
c)
Stays the Same
87.
If the North Pole of a permanent magnet is placed next to a compass as seen in the picture, which direction will the needle move?
a)
Clockwise
b)
Counter-clockwise
c)
It will not move
d)
Need more information
88.
Which direction is the North Pole of this electromagnet?
a)
Right
b)
Left
c)
Up
d)
Down
89.
In un-magnetized materials the domains are __________ aligned.
a)
super
b)
slightly
c)
randomly
d)
always
90.

2 ways to increase the magnetic field strength of an electro-magnet are to

a)

Increase the current flow, reduce the number of coils

b)

Increase the voltage, decrease the number of coils

c)

Increase the number of coils and the current flow

d)

Spread out the coils, replace iron core with rubber.

91.

The diagram shows a current carrying wire producing a magnetic field as shown. What is the direction of the current in the wire?

a)

up

b)

down

c)

left

d)

right

92.

The diagram shows an electron moving upward through a magnetic field directed toward you. What is the direction of the force on the electron?

a)

into the page

b)

out of the page

c)

left

d)

right

93.

Using the right hand force rule, B represents

a)

The current

b)

The magnetic field

c)

The direction of the force

94.

The diagram shows a conventional current flowing upward in a wire between the poles of a magnet. Using the right hand force rule, the force on the wire would be:

a)

towards you

b)

away from you

c)

to the left

d)

to the right

95.

Two wires carrying currents in opposite directions will:

a)

Attract

b)

Repel

c)

Exert no force on one another

d)

Move together

96.

What is the maximum force experienced by a 5.0 meter long wire carrying 20 Ampere that is in a 4.0 x 10-5 Tesla magnetic field?

a)

100 N

b)

4 N

c)

2 x 10-4 N

d)

4 x 10-3 N

97.

If a magnet is pushed into a coil, voltage is induced across the coil. If the same magnet is pushed into a coil with twice the number of loops,

a)

a. one-half as much voltage is induced.

b)

b. the same voltage is induced.

c)

c. twice as much voltage is induced.

d)

d. four times as much voltage is induced.

98.

Based on this picture of a transformer, which side will have a higher voltage?

a)

Secondary

b)

Primary

c)

Both sides have the same voltage

d)

Cannot be determined

99.

What must occur for a magnetic field to induce an electric current?

a)

The magnetic field must be really big

b)

The magnetic field must be stable

c)

The magnetic field must be changing

d)

The magnetic field must be from a permanent magnet

100.

Which of the following consists of devices all of which employ electromagnetic induction?

a)

An acoustic guitar being played into a microphone.

b)

A church pipe organ in a duet with a synthesizer.

c)

An electric guitar, a microphone and speakers in a rock concert.

d)

An electric generator powering an incandescent bulb.