NEW
Font size
WorksheetsG5 Unit 3 Revision
Total questions: 9
Worksheet time: 5mins
What is electricity?
Electricity is the flow of protons
Electricity is the flow of electrons
Electricity is the flow of neutrons
Electricity is the flow of atoms
Current is the rate of flow of electrons. Which one has the largest current?
You use one AAA battery in your alarm clock. Calculate the power for this battery.
Power = Voltage x Current= 1.5 x 8 = 12W
Power = Voltage x Current= 1.5 x 1.2 = 1.8W
Power = Voltage x Current= 1.5 x 2.4 = 3.6W
Power = Voltage x Current= 1.5 x 1 = 1.5W
Ahmed wants to use this lamp for 2 hours. Calculate the electrical energy, if Power = 3.6W.
Electrical energy = Power x Time = 3.6 x 2= 7.2 kWh
Electrical energy = Power x Time = 3.6 x 1= 3.6 kWh
Electrical energy = Power x Time = 3.6 x 4= 14.4kWh
Electrical energy = Power x Time = 3.6 x 3= 10.8kWh
Look at this circuit. Which one is the schematic drawing for this circuit?
What do we call the moving parts of a robot which are connected to the robot’s motors?
Mechanical system
Electrical system
Control unit
Design thinking
Which stage of the design process do you collect information, notes and images related to your project?
Analyse the problem
Research and planning
Design problem or brief
Produce the final product
Which of these is an electrical component?
Which stage of the design process involves building a design or creating a program?
Research and planning
Analyse the problem
Test and evaluate the product
Produce the final product
