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Second Semester Finals Review

Total questions: 53

Worksheet time: 1hrs 26mins

Name
Class
Date
1.

What is the unit to MEASURE force?

a)

Kilogram

b)

Meter

c)

Pounds

d)

Newton

2.
Force the opposes motion between 2 surfaces
a)
force
b)
Newton
c)
friction
d)
net force
3.

The acceleration of objects falling on Earth due to gravity is

a)

9.8 m/s

b)

9.8 m/s2

c)

9.8 g/mL

d)

9.8 g/m/m

4.

What is energy?

a)

moving energy

b)

stored energy

c)

renewable energy

d)

The ability to do work.

5.

At which point of the roller coaster is potential energy the greatest?

a)

W

b)

X

c)

Y

d)

Z

6.
Mechanical energy is the sum of an object's _____ energy and _____ energy.
a)
thermal, chemical
b)
potential, chemical
c)
kinetic, chemical
d)
potential, kinetic
7.
What part of the wave is shown at letter A?
a)
crest
b)
trough
c)
wavelength
d)
frequency
8.
What happens to frequency when the energy increases?
a)
it increases
b)
it decreases
c)
it stays the same
9.
What is the speed of a wave that has a wavelength of 2 and a frequency of 2.5?
a)
2.5 m/s
b)
5 m/s
c)
4.5 m/s
d)
6 m/s
10.
Which wave has the most energy?
a)
top wave
b)
bottom wave
11.

Waves transfer _______.

a)

energy

b)

matter

c)

particles

12.

What medium do sound waves travel fastest through?

a)

Solids

b)

Liquids

c)

Gases

13.
Sound will travel slowest through which of the following forms of matter?
a)
milk
b)
desk
c)
air
d)
door
14.
What occurs when vibrations traveling through an object match the object's natural frequency?
a)
reflection
b)
diffraction
c)
resonance
d)
refraction
15.

The frequency of sound waves determine

a)

quality

b)

type of interference

c)

pitch

d)

loudness

16.
When an ambulance move TOWARD you it sounds ________ pitched. 
a)
high
b)
low
c)
medium
17.
What do the light waves of a galaxy that is moving TOWARD us look like?
a)
red shifted
b)
blue shifted
c)
green shifted
d)
yellow shifted
18.
Ms Jo Jo rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?
a)
The balloons will repel each other.
b)
The balloons will attract each other.
c)
The balloons will become positively (+) charged.
d)
The balloons will pop.
19.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
20.
What is static electricity caused by?
a)
A balance of power
b)
A balance of positive and negative charges
c)
. An imbalance of positive and negative charges
d)
An imbalance of protons and neutrons
21.
If you rub a glass rod with a piece of silk, the rod becomes positively charged. This means that
a)
friction destroyed electrons in the rod.
b)
the silk has become negatively charged.
c)
protons have moved to the rod.
d)
glass attracts more protons.
22.
A region around a charged particle that can exert a force on another charged particle is called an
a)
electric pulse.
b)
electric charge.
c)
electric force.
d)
electric field.
23.

Why does a Van de Graaff generator make your hair stand up if you touch the dome?

a)

The current is trying to flow out of the hair ends.

b)

The electrons gather on the hair ends and repel each other.

c)

The hair is repelled by the dome of the Van de Graaff generator.

d)

The hair is attracted to the surrounding air.

24.
What is the name of the particle that is being transferred?
a)
Proton
b)
Neutron
c)
Electron
d)
Positron
25.
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
26.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
27.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
28.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
d)
light
29.
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
30.
The mathematical relationship among Voltage, Current, and Resistance
a)
Faraday's Law
b)
Tesla's Law
c)
Edison's Law
d)
Ohm's Law
31.
Current times Resistance equals
 (I X R)
a)
Power
b)
Voltage
c)
Amperage
d)
Ohm
32.
Current times Resistance equals
 (I X R)
a)
Power
b)
Voltage
c)
Amperage
d)
Ohm
33.

Voltage divided by Resistance

(V / R)

a)

Current

b)

Power

c)

Ohms

d)

Watts

34.

Voltage divided by Current

(V / I)

a)

Current

b)

Power

c)

Resistance

d)

Watts

35.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
36.
This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?
a)
3 Amps
b)
192 Amps
c)
2 Amps
d)
4 Amps
37.
What word means how fast the electrons flow.
a)
Current
b)
Voltage
c)
Resistance
d)
Power
38.
The flow of electricity requires a
a)
complete path
b)
incomplete path
c)
insulated current
d)
complex circuit
39.
To complete a circuit the switch must be
a)
unattached
b)
open
c)
closed
d)
It depends
40.

Four unequal resistors are connected in series with each other. Which one of the following statements is correct about this combination?

a)

The equivalent resistance is equal to that of any one of the resistors.

b)

The equivalent resistance is equal to average of the four resistances.

c)

The equivalent resistance is less than that of the smallest resistor.

d)

The equivalent resistance is less than that of the largest resistor.

e)

The equivalent resistance is more than the largest resistance.

41.

Draw a circuit with a battery connected to four resistors, R1, R2, R3, and R4, as follows. Resistors R1 and R2 are connected in parallel with each other, resistors R3 and R4 are connected in parallel with each other, and both parallel sets of resistors are connected in series with each other across the battery.

a)
b)
c)
d)
42.

When unequal resistors are connected in parallel in a circuit,

a)

the same current always runs through each resistor.

b)

the potential drop is always the same across each resistor.

c)

the largest resistance has the largest current through it.

d)

the power generated in each resistor is the same.

43.

When unequal resistors are connected in series across an ideal battery,

a)

the same power is dissipated in each one.

b)

the potential difference across each is the same.

c)

the current flowing in each is the same.

d)

the equivalent resistance of the circuit is less than that of the smallest resistor.

e)

the equivalent resistance of the circuit is equal to the average of all the resistances.

44.

What is the total resistance (RT) across this circuit?

a)

3 kΩ

b)

10 kΩ

c)

13 kΩ

d)

18 kΩ

45.
This is an example of a ______ circuit
a)
Series
b)
Parallel
c)
Open
d)
Dihexihedral
46.
In a parallel circuit, if one connection is broken, all of the connections stop working.
a)
True
b)
False
47.

Resistance?

a)

1/Rp = (1/5) + (1/8) + (1/3)

b)

120 Ω

c)

1.5189873 Ω

d)

1/Rp = (1/5) * (1/8) * (1/3)

48.

In which configuration is the current supplied by the battery the greatest?

a)

X

b)

Y

c)

Z

d)

X, Y, and Z are the same.

49.

100 Ω resistors are hooked in series. The equivalent resistance will be

a)

less than 100 Ω.

b)

100 Ω.

c)

more than 100 Ω.

d)

More information is needed.

50.
Pick the correct sentence.
a)
This circuit will work because it is a closed circuit.
b)
Energy will freely flow in this circuit.
c)
This circuit will not work because there is no energy source.
d)
This circuit will not work because there is no switch.
51.
What will happen if one light bulb is removed from this circuit?
a)
The other bulbs will go out.
b)
The other bulbs will stay on
c)
The other bulbs will get dimmer.
d)
The battery will become stronger.
52.
Which of the two circuits would have the brightest bulbs? 
a)
A
b)
B
53.

The ammeter below shows the current produced by a series of solar cells being used to power a simple series circuit. If the circuit’s resistance is 0.2 Ω, what voltage is supplied by the cells?

a)

750 V

b)

50 V

c)

3 V

d)

25 V

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