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S2 - Block 1 Physics - Electricity

Total questions: 42

Worksheet time: 39mins

Name
Class
Date
1.

What type of energy transformation uses the most power in a house?

a)

Electrical -------> Heat

b)

Electrical -------> Sound

c)

Electrical -------> Light

d)

Electrical -------> Kinectic

2.

What type of appliances uses the most power?

a)

Gas oven

b)

Electric oven

c)

PS4

d)

Computer

3.

What energy transformation occurs in an electric fire?

a)

Electrical ---> Heat + Light

b)

Electrical ---> Heat

c)

Electrical ---> Heat + Sound

d)

Electrical ---> Heat + Kinectic

4.

What is a power rating?

a)

how much electrical energy an appliances uses

b)

you how much electrical energy the appliance changes (transforms) every second

c)

how much electrical energy an appliances makes

5.

What are the units of power?

a)

Volts

b)

Ampere/Amps

c)

Watts

d)

Ohms

6.

What is 2.5kW in W?

a)

2500W

b)

250W

c)

25000W

d)

25W

7.

What is 1160W in kW?

a)

1.16kW

b)

11.16kW

c)

11.6kW

d)

116kW

8.

What colour is the live wire in a three pin plug?

a)

Red

b)

Blue

c)

Green and yellow

d)

white

e)

black

9.

What colour is the neutral wire in a three pin plug

a)

Red

b)

Blue

c)

Green and yellow

d)

white

e)

black

10.

What colour is the earth wire in a three pin plug

a)

Red

b)

Blue

c)

Green and yellow

d)

pink

e)

white

11.

What is wrong in this picture of a plug?

a)

The Earth and the Live have been swapped

b)

The Live and the Neutral have been swapped

c)

The Neutral and the Earth have been swapped

d)

The Earth is the wrong colour

e)

the fuse has blown

12.

What component protects the appliance from overloading which could start a fire?

a)

Earth Wire

b)

Neutral Wire

c)

live wire

d)

Fuse

e)

battery

13.
The plastic around the wire is
a)
conductor
b)
insulator
c)
decoration
14.

This is the circuit symbol of a

a)

resistor

b)

battery

c)

fuse

d)

switch

e)

an earth wire

15.

What is this a symbol for?

a)

Double Insulation

b)

Two boxes

c)

Fuse

d)

Plug

16.
The accumulation of excess electric charge on an object is called
a)
Static electricity 
b)
Electric discharge
c)
Resistance
d)
Circuit 
17.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
18.
What is the major difference between static electricity and current electricity?
a)
Current electricity involves a continuous flow of neutrons; static electricity is a sudden transfer of protons
b)
Current electricity can be deadly; static electricity is almost always safe
c)
In current electricity, there's a single transfer of electrons; in static electricity, there's a steady flow of electrons
d)
Current electricity involves a flow of electrons; static electricity involves a single transfer of electrons
19.

What is this a symbol for?

a)

Fuse

b)

Resistor

c)

Heater

d)

Variable resistor

20.

What is this a symbol for?

a)

Motor

b)

Bulb

c)

Ammeter

d)

Buzzer

21.

What is this a symbol for?

a)

Power Pack

b)

Battery

c)

Cell

d)

Motor

22.

Current is ........?

a)

Current is the flow of charge (electrons) around a circuit

b)

Current is a measure of the energy given to charge (electrons) by the power supply

c)

Current is the flow of voltage (electrons) around a circuit

d)

Current is a measure of the difficulty for charges to flow through a conductor

23.

Voltage is ........?

a)

Voltage is the flow of charge (electrons) around a circuit

b)

Voltage is a measure of the energy given to charge (electrons) by the power supply

c)

Voltage is the flow of voltage (electrons) around a circuit

d)

Resistance is a measure of the difficulty for charges to flow through a conductor

24.

Resistance is ........?

a)

Resistance is the flow of charge (electrons) around a circuit

b)

Resistance is a measure of the energy given to charge (electrons) by the power supply

c)

Resistance is the flow of voltage (electrons) around a circuit

d)

Resistance is a measure of the difficulty for charges to flow through a conductor

25.

The units for Voltage is?

a)

Volts

b)

Ohms

c)

Ampere/Amps

26.

The units for Current is?

a)

Volts

b)

Ohms

c)

Ampere/Amps

27.

The units for Resistance is?

a)

Volts

b)

Ohms

c)

Ampere/Amps

28.
Is the circuit pictured complete or incomplete? 
a)
Complete
b)
Incomplete
29.
To complete a circuit the switch must be
a)
unattached
b)
open
c)
closed
30.
What can we do to make this circuit pictured complete?
a)
connect wire to the terminal
b)
disconnect the wire from the lightbulb
c)
screw in the lightbulb
d)
replace the battery
31.
Two types of circuits are
a)
parallel and magnetic
b)
electromagnetic and series
c)
series and parallel
32.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
33.
What type of circuit is this?
a)
series
b)
parallel
34.

_______ provides more than one path for the electric charge to follow

a)

series circuit

b)

parallel circuit

c)

insulator

d)

conductor

35.

_______ provides only one path for the electric charge to follow

a)

conductor

b)

insulator

c)

parallel circuit

d)

series circuit

36.
In a parallel circuit if one of the light bulbs burns out the rest _________.
a)
stop the flow of electricity
b)
 can still light up
c)
 will go out
d)
of the light bulbs burn out also
37.
What is one problem with using a series circuit? 
a)
It has a lot of series. 
b)
If one light goes down, they all go down! 
c)
It doesn't work properly.
d)
There are no problems. 
38.

In a series circuit the current is the same at all points of the circuit and the voltage _________.

a)

is also the same

b)

is divided across all the components (bulbs etc.)

39.

In a parallel circuit the voltage is the same at all points of the circuit and the current _________.

a)

is also the same

b)

is divided across all the branches of the circuit

40.

A resistor has a voltage of 5V and a current of 0.2A. What is the resistance?

a)

25 Ohms

b)

2.5 Ohms

c)

0.04 Ohms

d)

1 Ohms

41.

A resistor has a voltage of 7V and a current of 0.8A. What is the resistance?

a)

8.75 Ohms

b)

5.6 Ohms

c)

0.11 Ohms

d)

7 Ohms

42.

What can a variable resistor be used for?

a)

Dimmer switch in house

b)

To slow down electricity in a circuit

c)

To heat up

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