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HW_Un1 Retake

Total questions: 26

Worksheet time: 22mins

Name
Class
Date
1.
Voltage is measured in __.
a)
volts.
b)
watts.
c)
coulombs. 
2.
What 'flows' in a wire?
a)
Protons
b)
Neutrons
c)
Atoms
d)
Electrons
3.
What kind of circuit is this?
a)
series
b)
parallel
4.

The safest ladder to use electricity is

a)

Wood

b)

Aluminum

c)

A smaller step stool

d)

Fiberglass

5.

Which of the following represents the opposition presented to the current by a material or device, measured in ohms?

a)

current

b)

resistance

c)

voltage

d)

electricity

6.

What do protons, electrons and neutrons make?

a)

element

b)

compound

c)

atom

7.

Positively charge particle

a)

proton

b)

neutron

c)

electron

8.
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
9.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
10.
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
11.
The mathematical relationship among Voltage, Current, and Resistance
a)
Faraday's Law
b)
Tesla's Law
c)
Edison's Law
d)
Ohm's Law
12.
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
13.

An alarm clock draws 0.5 A of current when connected to a 120 volt circuit. Calculate its resistance.

a)

60Ω

b)

120Ω

c)

180Ω

d)

240Ω

14.

What current flows through a hair dryer plugged into a 120 Volt circuit if it has a resistance of 25 ohms?

a)

2.4A

b)

3.6A

c)

4.8A

d)

6A

15.

Is it true that we can touch a victim with the electric shock to help them?

a)

TRUE

b)

FALSE

16.

The most dangerous place to use electrical equipment is

a)

near a ladder

b)

outdoors

c)

near water

d)

new other electrical equipment

17.

OSHA stand for?

a)

Occupational Safety and Health Management

b)

Occupational Safety and Healthy Management

c)

Occupational Safe and Health Management

18.

A circuit in which current divided in separate path or branches is called ______________.

a)

Series Circuit

b)

Series Parallel Circuit

c)

Parallel Circuit

d)

all are correct

19.
Which material would make the best insulator?
a)
Wood
b)
Plastic
c)
Copper
d)
Steel
20.
Which material would make the best conductor?
a)
paper
b)
copper
c)
glass
d)
wood
21.
Which statement is true?
a)
The light bulb will light up because the  circuit is complete.
b)
The light bulb will light up because the  circuit is broken.
c)
The light bulb will not light up because the  circuit is complete.
d)
The light bulb will not light up because the  circuit is broken.
22.
What is the power source in this circuit?
a)
Lightbulb
b)
Switch
c)
Wires
d)
Battery
23.

Anything which consumes electrical energy?

a)

Ground

b)

Circuit

c)

Load

d)

Knockout Set

24.

A circuit in which there is only one path for electricity to flow?

a)

Parallel Circuit

b)

Series Parallel Circuit

c)

Short Circuit

d)

Series Circuit

25.

Any material where electric current can flow freely?

a)

Capacitor

b)

Circuit

c)

Conductor

d)

Switch

26.

A ____ is a device for making, breaking, or changing the connections in an electric current.

a)

Circuit Breaker

b)

Fuse

c)

Switch

d)

Solenoid

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