Free Printable Electricity and Circuits

1.

A conductor is ____________

a)

something that allows electric current to flow easily

b)

something that limits the flow of electricity

2.

A combination of two or more electric cells is called _____

a)

Electric circuit

b)

Battery

c)

Terminals

d)

None of these

3.

In a parallel circuit, the effective resistance can be calculated with the following formula:

a)

$R\ =\ R_{1\ }+\ R_2$

b)

$R\ =R_{1\ }=\ R_2$

c)

$\frac{1}{R}\ =\ \frac{1}{R_1}\ +\ \frac{1}{R_2}$

d)

$R\ =\ R_1\ \times\ R_2$

4.

Which of the following formula(s) is CORRECT?

a)

$V\ =\ IR$

b)

$R\ =\ VI$

c)

$I\ =\ \frac{V}{R}$

d)

$I\ =\ VR$

e)

$R\ =\ \frac{V}{I}$

5.

An electric current flows in a wire. What is one result?

a)

a magnetic field is created

b)

any nearby magnetic fields are destroyed

c)

nearby magnets lose their strength

d)

the metal of the wire cannot be affected by magnets

6.

Why must every electric circuit have a voltage source, such as a battery?

a)

Without a voltage source, the resistance would be too high

b)

Without a voltage source, the resistance would be too low

c)

Without a voltage source, there would be no electrons in the circuit

d)

Without a voltage source, there would be no source of current

7.

What happens if there is a break at any point in a series circuit?

a)

no current flows

b)

current flows through an alternative path

c)

resistance goes to infinity

d)

current reverses direction

8.

The flow of electricity through a conductor is called...

a)

resistance

b)

voltage

c)

current

d)

source of electric current

9.

What slows down the flow of electricity in a circuit?

a)

resistance

b)

voltage

c)

current

d)

source of electric current

Electricity and Circuits

Total questions: 9

Worksheet time: 6mins

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