WorksheetsGRADE 6 SCIENCE
Total questions: 12
Worksheet time: 6mins
1. ………. are from the artificial sources that are used before inventing the electric lamps.
Candles
Oil lamps
Fluorescent lamps
(a) and (b)
2. The electric lamp converts the electric energy into………………..energy.
kinetic
magnetic
light
sound
3. The filament of the light bulb is made of ……………………
tungsten
copper
iron
aluminium
4. ……………….allow the electric current to transfer from the lamp base to the filament
The tungsten filament
The argon gas
Copper and lead wires in the light lamp
The base of the light bulb
5. All the following are from the components of the fluorescent lamp except………………
tungsten filaments
points of connection
two thick copper wires
glass tube
6. The glass tube of the fluorescent lamp contains …………….
neon gas
argon gas and a little of mercury vapour.
argon gas only
hydrogen gas
7. We need a light bulb, battery and connecting wires connected together in a closed continuous path to…………………………
obtain a continuous electric circuit
make a simple electric circuit
make the bulb lights up
(a) , (b) and (c).
8. When we connect more than one bulb in parallel to an electric source, the light intensity of the bulbs…………………………..
decreases
increases
does not change
(a) , (b) and (c)
9. If we have three light bulbs and we need to get high light intensity, so we must connect them……………………
in series
in parallel
(a) and (b)
without copper wires.
10. When an electric lamp which is connected in series with the other lamps burns out, .………
light intensity decreases
light intensity increases
all lamps turn off
no correct answer.
11. All of the following materials allow the flow of the electric current except……………..
Iron
Aluminum
Rubber
Copper
12. All the following gases are used in the electric lamps except ................
argon
atmospheric air
mercury vapour
(a) and (c).
