WorksheetsElectricity And Light
Total questions: 20
Worksheet time: 15mins
Light is
visible and also makes objects on which it falls visible.
invisible but makes objects on which it falls visible.
invisible but becomes visible when it falls on an object.
sometimes visible and sometimes invisible but it always makes objects on which it falls visible.
What kind of object do we need to create a shadow?
Opaque
Translucent
Transparent
If we want to make a big shadow then we need a _____________ screen.
Small
Big
Objects like the sun that give out or emit light of their own are called (a) objects.
What objects do we need to make a shadow?
Light, object and a screen
Light source, opaque object and screen of any size depending on the size of the shadow we want
object and screen
none of these
A shadow is obtained only on a (a) .
You look into the mirror and see your own face inside the mirror. What you see is a (a) .
If you are able to see clearly through an object, it is allowing light to pass through it and is_________________.
transparent
translucent
opaque
There are some objects through which we can see, but not very clearly. Such objects are known as________________.
Translucent
Opaque
The object that we can see clearly is an (a) object
Which of the following are conductors?
copper
rubber
wood
graphite
What breaks and completes a circuit?
Bulb
Electric cell
Wire
Switch
Air is a/an (a) of electricity.
The coloured plastic covering on an electric wire makes it ________________.
long lasting
more attractive
resistant to corrosion
safe to touch
The filament of an electric bulb is a thin line made up of _____________________.
copper
aluminium
tungsten
nichrome
A bulb has (a) terminals.
The purpose of wires are to?
Turn a switch on
Turn off a light
Carry electric current to different parts of the circuit
Make a motor move
The plus sign on a battery shows which terminal?
Positive
Negative
If one part of the circuit is broken what will happen?
The electricity will continue to flow
The electricity will stop flowing
The electricity will move faster
The electricity will move slower
Cell is a device which
converts chemical energy into electrical energy
electrical energy into light energy
electrical energy into magnetic energy
None of these
