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P2 Electricity (Physics 9-1)

Total questions: 30

Worksheet time: 33mins

Name
Class
Date
1.

a) In which circuit is the current from the cell greatest?

a)

A

b)

B

c)

C

d)

D

2.

What will TWO increase the size of an electric current? (choose 2)

a)

Decrease voltage

b)

Increase voltage

c)

Increase resistance

d)

Decrease Resistance

3.

Which equation is correct?

a)

voltage = current x charge

b)

voltage = current / charge

c)

voltage = resistance x current

d)

voltage = current / resistance

4.

Which component is shown in the V-I curve?

a)

A filament lamp

b)

An ohmic resistor

c)

A piece of wire

d)

A diode

5.

Which component is shown in the V-I curve?

a)

A filament lamp

b)

An ohmic resistor

c)

A thermistor

d)

A diode

6.

What is the unit of charge?

a)

Volt

b)

Ampere

c)

Coulomb

d)

Ohm

7.

What is the equation for charge flow?

a)

current / time

b)

time / current

c)

current x time

8.

In which component does the resistance decrease as the temperature increases?

a)

Diode

b)

Variable resistor

c)

Thermistor

d)

LDR

9.

In which component does the resistance decrease as the light intensity increases?

a)

Diode

b)

Variable resistor

c)

Thermistor

d)

LDR

10.

In which type of circuit are all the components in a line?

a)

Series

b)

Parallel

c)

Athletic

d)

Ohmic

11.

What type of component is this?

a)

Diode

b)

LDR

c)

Fuse

d)

Thermistor

12.

What type of component is this?

a)

LED

b)

LDR

c)

Fuse

d)

Thermistor

13.

How does current behave in a series circuit?

a)

It is shared between the components

b)

It is the same through each component

14.

What happens to the resistance when two resistors are placed in series?

a)

It increases

b)

Its decreases

c)

It stays the same

15.

What happens to the resistance when two resistors are placed in parallel?

a)

It increases

b)

It decreases

c)

It stays the same

16.
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. 
17.
What is a benefit of using a parallel circuit?  
a)
It gets confusing.
b)
There are no problems.
c)
If one light goes out, it does not affect the others. 
d)
If one light goes out, they all go out. 
18.
A flow of electrons through a conductor is called:
a)
A river
b)
A spark
c)
An electron flow
d)
A current
19.
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
20.
How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor
a)
12 volts
b)
24 volts
c)
1.3333
d)
48 volts
21.
What size resistor would produce a current flow of 5 Amps with a battery voltage of 12.6 volts
a)
60 Ohms
b)
2.52 Ohms
c)
1.71 ohms
d)
5.04 Ohms
22.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
23.
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
24.
What is Resistance?
a)
The flow of electrons
b)
Electric potential difference
c)
A battery
d)
The ability to reduce the flow of electrons
25.
If the battery produced 12.6 Volts and what would be the current flow be for a 6 Ohm resistor
a)
2.1 Amps
b)
2.4 Amps
c)
1.71 Amps
d)
15 Amps
26.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
27.
If the Voltage stays the same and Resistance is increased, Current will 
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
28.

What is the potential difference across X

a)

12 volts

b)

3 volts

c)

6 volts

d)

2 volts

29.

What is the resistance across X

a)

12 ohm

b)

3 ohm

c)

6 ohm

d)

2 ohm

30.

What is the current in Y

a)

2 A

b)

3 A

c)

1 A

d)

5 A

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