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AQA · GCSE · Physics · Higher

Energy Stores in an Electric Whisk

Q01.1 2 marks

Figure 1 shows an electric whisk that plugs into the mains electricity supply. The whisk can mix food by spinning a beater.

Figure 1
Figure 1

Figure 1

Enlarged question image

Figure 1

Give two energy stores that increase when the whisk is switched on.

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Marking points

  1. 1 Identifies the increasing kinetic energy store of the beater or food.
  2. 2 Identifies an increasing internal or thermal energy store of the surroundings, whisk or food.

Full-mark answer

The kinetic energy store of the beater (or the food) increases, and the internal or thermal energy store of the whisk, food or surroundings increases.

Why this answer loses marks

Sound energy store.

The official mark scheme says to ignore sound. Sound is an energy-transfer pathway, not one of the credited energy stores here.

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