Energy Consumption (HSC SSCE Mathematics Standard): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the SI unit of energy?
What is the SI unit of energy?
Joule
What does power measure?
What does power measure?
How quickly energy is used over time
One watt equals one joule of energy transferred per what unit of time?
One watt equals one joule of energy transferred per what unit of time?
Second
How many watts equal one kilowatt?
How many watts equal one kilowatt?
1000 watts
Which formula calculates electrical energy in kilowatt-hours?
Which formula calculates electrical energy in kilowatt-hours?
Power (kW) Time (hours)
How many megajoules equal one kilowatt-hour?
How many megajoules equal one kilowatt-hour?
3.6 MJ
On an energy rating label, what does a higher star rating indicate?
On an energy rating label, what does a higher star rating indicate?
More energy efficient
What does the number in the red box on an energy rating label show?
What does the number in the red box on an energy rating label show?
Annual electricity use in kWh
Which formula calculates the running cost of an appliance?
Which formula calculates the running cost of an appliance?
Energy (kWh) Price (USD/kWh)
A kW heater runs for hours at 0.17 USD/kWh. What is the cost?
A kW heater runs for hours at 0.17 USD/kWh. What is the cost?
1.02 USD