Wednesday, 5 December 2012

EXERCISES ( ELECTRICITY)

 Circuits and Electricity

http://www.teachingideas.co.uk/science/contents_circuits.htm


Multiple choices

1.  * Uses chemical energy to produce electricity
     * Produces a small amount of electricity
     * Suitable for toys, watches and torches

     The above description refers to ___________.
     A. an accumulator     B. a dry cell     C. a dynamo     D. a solar cell

2 . 



                                                         Diagram 1
    
 What is true about the objects shown in Diagram 1?
     A. They give us light.
     B. They possess kinetic energy.
     C. They are electric appliances.
     D. They are electrical energy sources.

3. * Converts energy from the Sun
    * used in calculators, watches and satellites

     What fits the description above?
     A. A dynamo     B. An accumulator     C. A solar cell     D. A dry cell

4.  What is the symbol for bulb?
     A.
     B.




     C.

     D.

5. Which of these actions should be avoided if someone gets electrocuted?
     A. Switch off the electricity supply.
     B. Pull the victim with your bare hands.
     C. Wear rubber gloves when handling the victim.
     D. Call an ambulance immediately.


Answer:
1.B     2.D     3.C     4.B     5.B

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