Microwaves

2 marks · Easy

State two uses of microwaves, other than for cooking food.

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Also accept: Communications (including mobile phones); Satellite communication; Radar

Common mistakes: Infrared uses like remote control; Incorrect electromagnetic group

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Marking points

B1 · 1 mark · One correct use stated (e.g., communication, radar, satellite communications).

B2 · 1 mark · Another correct use stated (must not be a repeat of the first).

Worked solution

Microwaves are used for:

1. Satellite communications (carrying signals).

2. Radar systems for detecting objects.