Login
Login
Login
Register

Tutor HuntTest QuestionsPhysics QuestionsYear 10 Physics Questions

 

Power (GCSE Physics)

The following is a GCSE Physics test covering 'Power' from the broader topic Energy. The test is geared towards the AQA exam board style syllabus.
Start Test
Incorrect: 0
Correct: 0
Question 1
...
Congratulations - you have completed the test!
Your final score was

Below a typical questions that will be covered in this test. You final score will be logged on your account

Why is efficiency always less than or equal to 1 (or 100%) for real electrical devices?
Which of the following increases the electrical power delivered to a resistive heater connected to fixed supply?
A resistor has R = 10 O and a current of 2 A flows. What is the power dissipated as heat?
A heater has P = 2000 W and runs for 2 hours. What energy (in kWh) is used?
A toaster draws 8.0 A from a 230 V mains. What is its power and energy used in 10 minutes?
How much electrical energy (in J) does a 3.0 kW appliance use in 2 hours?
Which is the best description of power efficiency?
A student measures voltage and current of a resistor as 6.00 V and 0.150 A. Using P = VI, what power should they report with correct significant figures?
What is the SI unit of power?
Which of these is a correct statement of the power in terms of force and speed?
If a transmission cable has a resistance of 0.8 O and carries a current of 500 A, what is the power lost as heat in the cable?