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WorksheetsElectrical charge, current and potential difference
Total questions: 20
Worksheet time: 30mins
Match the following quantities with their units
Electrical Charge
Coulombs
Electrical Current
Amps
Potential Difference
Volts
Work
Joules
(a) is the difference in (b) potential energy per unit charge between two terminals
(a) is the flow of electrical charge
Electrical charge is a (a) property of subatomic (b) which can be either positive or negative
Label the direction that electrons will flow when the circuit is connected
What is the charge on one electron, in coulombs?
(Answer in scientific notation to 2 significant figures)
What is the charge on 6 electrons, in coulombs?
(Answer in scientific notation to 2 significant figures)
A number of protons have a combined charge of 3.216×10−17 C. How many protons are there?
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)
Calculate the electrical potential energy carried by 1C or charge at a potential difference of 8V.
(Answer in joules)
2 electrons have a total electrical potential energy of 6.4×10−18 J. Determine the potential difference.
(Answer in volts)
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)
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)
Like charges will
repel
attract
do nothing
peanuts
Opposite charges will
repel
attract
do nothing
monkey
Electrons move in a circuit due to the _____________ _____
(a)
Batteries create a (a) which creates electrostatic force on the electrons
The unit for potential difference is
Coulombs
Joules
Amps
Volts
The unit for electrical charge is
Coulombs
Joules
Amps
Volts
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)
