Physics (electronics, telecoms, using electricity, waves etc.) 3.0 / 5 based on 1 rating ? PhysicsNational 5SQA Created by: steph sinclairCreated on: 19-12-12 14:46 What unit is VOLTAGE measured in? Volts 1 of 13 What unit is CURRENT measured in? Amperes 2 of 13 What unit is RESISTANCE measured in? Ohms 3 of 13 How is a VOLTMETER connected in a circuit? In parallel 4 of 13 How is a AMMETER connected in a circuit? In series (circuit is broken) 5 of 13 What 5 features does a RADIO RECIEVER have? Aerial, Tuner, Decoder, Amplifier, Loudspeaker 6 of 13 What is the WAVE EQUATION? speed = frequency x wavelength 7 of 13 How many watts is a MEGAWATT? 1,000,000 8 of 13 What to colours of a TV screen are mixed to make YELLOW? Red + Green 9 of 13 Why are the BRUSHES in an electric motor made of CARBON? To reduce wear to the commutator 10 of 13 What does FM stand for? Frequency Modulated 11 of 13 How does the curved dish of a RECIEVER work? By focusing signals to a focal point 12 of 13 At what voltage do most transistors switch on? 0.7 V 13 of 13
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