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Created by Terri Street Copyright, 2000 1,000,000 500,000 250,000 125,000 64,000 32,000 16,000 8,000 4,000 2,000 1,000 500 300 200 100 Click to return to question, Cont-P to switch to the pen, cross out two incorrect answers, then Cont-A to switch back to pointer. Click to return to the question and poll the class Click on link to Ask Jeeves, or click on this oval to return to question and ask a friend Electricity is the movement of charged particles, usually….. A. Protons B. Electrons C. Atoms D. Neutrons B. Electrons Back to Board Which of the following is an insulator? A. Copper B. Tin C. Wood D. Graphite C. Wood Back to Board This symbol represents a … A. Switch B. Bulb C. Rheostat D. Battery B. Bulb Back to Board Which of the following is not a rule for drawing circuit diagrams? A. Straight lines C. use pencil B. 90° corners D. coloured symbols D. Coloured symbols Back to Board Rheostat is another name for a … A. Resistor B. Variable resistor C. Bulb D. Fuse B. Variable resistor Back to Board Flow of electrons is known as the ... A. Resistance B. Voltage C. Current D. Power C. Current Back to Board Energy gained or lost is known as the … A. Current B. Voltage C. Resistance D. Power B. Voltage Back to Board The instrument used to measure current is called a… A. Current meter B. Voltmeter C. Ammeter D. Rheostat C. Ammeter Back to Board The unit of current is the… A. Watt B. Volt C. Ohm D. Amp D. Amp Back to Board Voltage is calculated by… A. Voltage x current B. Resistance/current C. current/Resistance D. Resistance x current D. Resistance x current Back to Board Which of the following is not an advantage of a parallel circuit? A. Battery lasts longer B. bulbs same brightness C. Bulbs can work independently D. Bulbs work if one blows A. Battery lasts longer Back to Board Voltage in a parallel circuit is … all branches A. different in B. the same in C. divided equally in D. shared between B. The same in Back to Board A 9v battery is connected in series to 2 bulbs, 1 bulb uses 4.5 units of energy. How much does the other bulb use? A. 4.5 watts B. 9 volts C. 4.5 volts D. 4.5 amps C. 4.5 volts Back to Board In a parallel circuit 2,4 and 6 amps flow in branch a,b and c respectively. Which branch has the brightest bulb? A. branch a B. branch b C. All the same D. branch c C. All the same Back to Board A 2 branch parallel circuit is built containing a 12v battery and 3 bulbs. What is the voltage and brightness of each bulb? A. 12v bright 2x 6v dimmer B. 12v bright 2x 6v bright C. 3 x 12v bright D. 12v dim 2x 6v bright A. 12v bright, 2x 6v dimmer Sorry, try again! Thanks for playing!