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Electrical Test 1

Total questions: 10

Worksheet time: 8mins

Name
Class
Date
1.

What is voltage?

a)
Voltage is the flow of electrons in a circuit.
b)
Voltage is the brightness of a light bulb.
c)
Voltage is the resistance in an electrical system.
d)
Voltage is the difference in electric potential between two points, which is measured in volts.
2.

What is Ohms Law?

a)
Ohm's Law is I = V / R, where I is current, V is voltage, and R is resistance.
b)
Ohm's Law is R = V / I, where R is resistance, V is voltage, and I is current.
c)
Ohm's Law is P = V * I, where P is power, V is voltage, and I is current.
d)
Ohm's Law is V = I * R, where V is voltage, I is current, and R is resistance.
3.

What is the unit of electrical resistance?

a)

Ampere

b)

Volt

c)

Ohm

d)

Watt

4.

What does the term 'current' in electrical circuits refer to?

a)

The resistance of the circuit

b)

The voltage across the circuit

c)

The flow of electric charge through a conductor

d)

The brightness of a light bulb connected to the circuit

5.

Which of the following is a correct expression of Power in electrical terms?

a)

P = V / I, where P is power, V is voltage, and I is current

b)

P = I / V, where P is power, I is current, and V is voltage

c)

P = V * I, where P is power, V is voltage, and I is current

d)

P = I^2 * R, where P is power, I is current, and R is resistance

6.

Which component is used to store electrical energy in an electrical circuit?

a)

Resistor

b)

Capacitor

c)

Inductor

d)

Transistor

7.
Voltage is simply defined as...
a)
what 'pushes' electrons
b)
what 'stops' electrons
c)
moving electrons
8.

If the resistance in a circuit is increased, what happens to the current, assuming the voltage remains constant?

a)

It increases

b)

It decreases

c)

It remains the same

d)

It becomes zero

9.
What is an electric current? 
a)
the flow of electricity 
b)
electricity moving in only one direction
c)
a switch that gives power
10.

Which of the following is NOT a good conductor of electricity?

a)

Copper

b)

Aluminum

c)

Rubber

d)

Gold