physics 2007 general

Which part of a radio receiver separates the audio signal from the carrier wave?

Decoder

1 of 8

A rocket is pushed forwards because its engine gases

are pushed backwards

2 of 8

In outer space, the engine of a space probe is switched on for a short time.When the engine is switched off, the rocket

moves at a steady speed

3 of 8

What is the purpose of the mains supply?

to supply (electrical) energy/power/current/voltage

4 of 8

a.c. is short for alternating current. Explain what is meant by alternating current

a current that changes direction

5 of 8

What is meant by an open circuit?

there is a break in the circuit

6 of 8

What can be used to detect X-rays?

photographic/film paper/X-ray film/radiation film/badge

7 of 8

Name the radiation used to make thermograms

heat or infrared

8 of 8

Other cards in this set

A rocket is pushed forwards because its engine gases

are pushed backwards

In outer space, the engine of a space probe is switched on for a short time.When the engine is switched off, the rocket

What is the purpose of the mains supply?

a.c. is short for alternating current. Explain what is meant by alternating current

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