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Worksheets

Current

Total questions: 20

Worksheet time: 12mins

Name
Class
Date
1.
An example of a conductor is :
a)
a glass paperweight
b)
a plastic cap
c)
a metal screw
d)
a wooden handle
2.
An example of an insulator is:
a)
iron
b)
silver
c)
copper wire
d)
rubber
3.
Is this circuit open or closed?
a)
Closed
b)
Open
4.
The flow of electricity in a circuit-
a)
current
b)
flow
c)
circuit
5.
What is the symbol for Current
a)
C
b)
Q
c)
I
d)
A
6.
What is the unit for Current
a)
C
b)
Q
c)
I
d)
A
7.
What is the unit for Charge
a)
C
b)
Q
c)
I
d)
A
8.
How much charge must pass by a point in 10 s for the current to be  0.50 A? 
a)
0,05C
b)
5,0C
c)
20C
d)
2,0C
9.

The current in a wire is 1.2kA. What is the current in Amps?

a)

120A

b)

12A

c)

0.12A

d)

1200A

10.

A 3A current flows through a television. How long would it take for 1500C to flow through it?

a)

4500s

b)

500s

c)

50s

d)

450s

11.

Is the light bulb on or off?

a)

on

b)

off

12.

Electrons leave a battery (dry cell) through the ___ terminal.

a)

positive

b)

negative

13.
Resistance is measured in what unit?
a)
ohms
b)
amps
c)
watts
d)
volts
14.
Potential difference is another term for
a)
current
b)
voltage
c)
energy
d)
watts
15.

What does this instrument measure? How should it be connected in a circuit?

a)

This instrument measures current. It should be connected in parallel.

b)

This instrument measures current. It should be connected in series.

c)

This instrument measures potential difference. It should be connected in parallel.

d)

This instrument measures electromotive force. It should be connected in series.

16.

The instrument used for measuring electric current is

a)

galvanometer

b)

ammeter

c)

voltmeter

d)

potentiometer

17.

The sum of all forces acting on an object and direction is called the

a)

Balanced Force

b)

Net Force

c)

Unbalanced Force

d)

Contact Force

18.

Name the missing force.

a)

Gravitational Force

b)

Normal Force

c)

Friction Force

d)

Applied Force

19.

What is the magnitude and direction of the force in the free body diagram shown?

a)

35 N right

b)

17 N right

c)

11 N right

d)

5 N right

20.

What is the force on 400g object that's accelerating at 2m/s^2

a)

200N

b)

200

c)

800N

d)

800