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| Name:_________________________ | Date:_______________ | |
 
Let's Find Out About Electricity | ||
A.
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Write the number of the correct answer in the brackets.
B.
1.
The battery is a ________ of electricity.
( 
)
(1)
(2)
(3)
(4)
voltage
source
current
creator
2.
Without electricity, your ________ will still work in the house.
( )
(1)
(2)
(3)
(4)
telephone
doorbell
television
gas cooker
3.
The casing of an electric plug is usually made of ________.
( )
(1)
(2)
(3)
(4)
bakelite
plastic
rubber
plasticine
4.
In an electric bulb, which parts are conductors?
(a) filament(b) wires
(c) glass bulb (d) metal tip
( )
(1)
(2)
(3)
(4)
(a) & (b).
(a) , (b) & (c).
(a) , (b) & (d).
All of the above.
5.
Electricity cannot flow through ________.
( )
(1)
(2)
(3)
(4)
water
silver
wood
aluminium
Write "T" for true and "F" for false.
C.
1.
Batteries cannot store electricity.
( )
2.
Electricity is a form of energy.
( )
3.
The brightness of a bulb depends on its voltage.
( )
4.
When a bulb fuses, it can be reused again after sometime.
( )
5.
Electrical energy can be converted into heat energy.
( )
Fill in the blanks with the most suitable word.
1.
The filament of an electric bulb is made of ____________.
2.
The rubber material that covers bare wires is used as an ____________.
3.
A battery has ____________ terminals.
4.
When a circuit is ____________, electricity can flow through.
5.
Batteries connected in __________ will result in a higher voltage.