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Worksheets

Parallel Series

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

The picture shows an electrical circuit. This circuit is a series circuit because: 

a)

It has 3 light bulbs.

b)

The same current flows through all three light bulbs.

c)

It uses a single battery.

d)

The electrical current is divided between the three light bulbs.

2.

What kind of circuit is this?

a)

series

b)

parallel

3.

This circuit has more than one loop. When one light goes out, the others stay on. 

a)

closed circuit

b)

series circuit

c)

parallel circuit

d)

open circuit

4.

One of the advantages of _________ circuits is that they ensure all components in the circuit have the same voltage

as the source.For instance, all bulbs in a string of lights have the same brightness.

a)

open

b)

multiple

c)

series

d)

parallel

5.

The picture shows an electrical circuit. This circuit is a series circuit because: 

a)

It has 3 light bulbs.

b)

The same current flows through all three light bulbs.

c)

It uses a single battery.

d)

The electrical current is divided between the three light bulbs.

6.

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.

7.

When you remove a bulb from a three bulb circuit, and the other two bulbs go off, then the bulbs must have been connected in __________.

a)

parallel

b)

series

c)

opened

d)

closed

8.

all bulbs are lit equally the two top bulbs are brighter the single lower bulb is brighter the single bulb does not light and the other two are dim

a)

all bulbs are lit equally

b)

the two top bulbs are brighter

c)

the single lower bulb is brighter

d)

the single bulb does not light and the other two are dim

9.

when the switch is closed.....

a)

both bulbs TURN ON

b)

both bulbs STAY ON

c)

both bulbs TURN OFF

d)

both bulbs STAY OFF

10.

This type of circuit has multiple paths for the current to flow. If one component fails, the current can still flow through other paths.

a)

Series circuit

b)

Parallel circuit

c)

Open circuit

d)

Short circuit

11.

In a parallel circuit, the total resistance is _______ than the smallest resistance in the circuit.

a)

Equal to

b)

Greater than

c)

Less than

d)

The same as

12.

Which of the following is a characteristic of a parallel circuit?

a)

Current is the same through all components

b)

Voltage is the same across all components

c)

Resistance is the same across all components

d)

Power is the same across all components

13.

When adding more resistors in parallel to a circuit, the total resistance of the circuit will:

a)

Increase

b)

Decrease

c)

Remain the same

d)

Double

14.

In a household electrical system, which type of circuit is commonly used to ensure that appliances can operate independently?

a)

Series circuit

b)

Parallel circuit

c)

Open circuit

d)

Short circuit

15.

If three resistors of 6 ohms, 3 ohms, and 2 ohms are connected in parallel, what is the total resistance?

a)

1 ohm

b)

11 ohms

c)

0.5 ohms

d)

2 ohms