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Electrical charge, current and potential difference

Total questions: 20

Worksheet time: 30mins

Name
Class
Date
1.

Match the following quantities with their units

a)

Electrical Charge

1.

Coulombs

b)

Electrical Current

2.

Amps

c)

Potential Difference

3.

Volts

d)

Work

4.

Joules

2.

​ (a)   is the difference in ​ (b)   potential energy per unit charge between two terminals

Choose from the below words
Potential difference
electrical
Electrical current
Electrical charge
kinetic
energy
3.

​ (a)   is the flow of electrical charge

Choose from the below words
Electrical current
Electrical charge
Potential difference
4.

Electrical charge is a ​ (a)   property of subatomic ​ (b)   which can be either positive or negative

Choose from the below words
fundamental
particles
basic
atom
5.

Label the direction that electrons will flow when the circuit is connected

6.

What is the charge on one electron, in coulombs?

(Answer in scientific notation to 2 significant figures)

7.

What is the charge on 6 electrons, in coulombs?

(Answer in scientific notation to 2 significant figures)

8.

A number of protons have a combined charge of 3.216×10173.216\times10^{-17} C. How many protons are there?

9.

Determine how long it takes one electron to pass a single point in a 5A current.

(Answer in seconds, in scientific notation to two significant figures)

10.

Calculate the electrical potential energy carried by 1C or charge at a potential difference of 8V.

(Answer in joules)

11.

2 electrons have a total electrical potential energy of 6.4×10186.4\times10^{-18} J. Determine the potential difference.

(Answer in volts)

12.

A simple circuit is used to provide energy to heat water. The circuit supplied 216 000J over 3 minutes. If the potential difference in the circuit is 240V determine the current.

(Answer in amps)

13.

A circuit has a potential difference of 12V and a current of 3mA. It is used to power a lightbulb for 4 minutes. Determine the energy transferred.

(Answer to two decimal places)

14.

Like charges will

a)

repel

b)

attract

c)

do nothing

d)

peanuts

15.

Opposite charges will

a)

repel

b)

attract

c)

do nothing

d)

monkey

16.

Electrons move in a circuit due to the _____________ _____

(a)  

17.

Batteries create a (a)   which creates electrostatic force on the electrons

18.

The unit for potential difference is

a)

Coulombs

b)

Joules

c)

Amps

d)

Volts

19.

The unit for electrical charge is

a)

Coulombs

b)

Joules

c)

Amps

d)

Volts

20.

If it takes 22 coulombs of charge 2 seconds to pass a single point in a circuit, determine the current in the circuit.

(Answer in amps)