WorksheetsELECTRICITY AND CIRCUITS
Total questions: 35
Worksheet time: 20mins
If we touch a a live wire carrying current, we get a shock. This is because our body is a/an
conductor of electricity
insulator of electricity
source of electricity
None of these
Why do electricians wear gloves made of rubber?
It is soft.
It is waterproof.
It is an insulator.
It is inexpensive.
Which among the following metal is used for making electric wires?
Graphite
Iron
Copper
Zinc
Why is tungsten used as a filament in electric bulbs?
It is non luminous
It is a soft metal
It has a high melting point
It has a low melting point
Why is a switch used in a circuit?
To complete or break a circuit
To save energy
To prevent electric shocks
To make the bulb glow easily
The bulb in a circuit glows when electric current
flows through the glass covering
flows through its filament
stops flowing to the bulb
flows into the air through the bulb
What are the two places on the battery to which the wires can be attached called?
Switches
Filaments
Insulators
Terminals
Which of these will generate electric current when kept in sunlight but not in the dark?
Solar cell
Car battery
Dry cell
Button cell
What is the source of electricity in the satellites?
Dry cells
Solar cells
Dynamos
Accumulators
Switch is also referred as _____ in an electric circuit.
filament
cell
key
The bulb glows only when there is a flow of ___________.
electricity
liquid
gases
In the open circuit, the bulb _____________.
glows
does not glow
Filament is made up of ________.
iron
tin
tungsten
A cell consists of an outer covering made of _______.
copper
tungsten
zinc
An ___________ is a simple device that is used to open or close an electric circuit.
electric switch
electric remote
electric handle
The materials that allow electricity to pass through them are known as _________.
conductors
insulators
Electric current flows from _______ terminal to _______ terminal in a cell.
positive, negative
negative, positive
Two or more cells connected end to end together forms a ______.
torch
circuit
battery
To prevent electric shocks, the metallic electrical wires are covered with
paper
cotton
aluminium
plastic
Materials through which current cannot pass are called …………………….
(a)
The tiny coiled metal wire present inside the bulb is called ___
Element
Conductor
Filament
None of these
Electric energy is produced from the ______ within the cell.
Chemicals
Metals
Terminals
None of these
This is a ___.
Closed Circuit
Open Circuit
What does this sign represent?
Danger
Graveyards
Pirates
Remains of bones
Why is electrical wiring usually are covered with a layer of plastic?
To make it look pretty
To help electricity flow along the wire
To make it safe
To add more energy
Electricity is not a form of energy.
True
False
To replace a copper strip in a circuit, which among the following should we use to complete the circuit?
Wood
Rubber
Plastic
Silver
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
Which electrical circuit diagram symbol is shown above?
A battery
A load
A closed switch
An open switch
