physics 2007 general 3.0 / 5 based on 1 rating ? PhysicsNational 5SQA Created by: hafsaCreated on: 14-11-12 21:49 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
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