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10.3 Electrical energy and power

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Question 35
F

The Table shows the power of three electrical appliances used in a kitchen.

Table

AppliancePower in W\text{W}W
electric fan40
toaster900
food mixer350
a.

State the equation linking power, energy transferred and time taken.

[1]
b.

Calculate the energy transferred by the toaster in 3.0 minutes.

[3]
c.

The electric fan is connected to the mains supply.

Describe the energy transfers that take place when the fan is switched on.

[2]
d.

A different fan is powered by a battery.

Give the energy store that decreases when this fan is switched on.

[1]
Markscheme

10.3 Electrical energy and power Questions

  1. GCSE
  2. /Physics
  3. /10.3 Electrical energy and power

105 exam-style questions on Edexcel GCSE Physics 10.3 Electrical energy and power, covering 10.3.1 The heating effect of an electric current, 10.3.2 Reducing energy transfer in wires, 10.3.3 Advantages and disadvantages of the heating effect, 10.3.4 Energy transferred by an electrical circuit, 10.3.5 Electrical power, and 10.3.6 Energy transfers in domestic devices. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank