Learn Class 6 Science - Electricity and Circuits

Electricity

Electricity is a form of energy used to run appliances in our everyday lives. Electricity is significant in today’s world. We can easily convert electricity to other energy forms.

But electricity must be handled with care because there are chances of getting a shock which can even become fatal.

Some examples of electricity are as follows:

  • The fans and coolers run with electricity.
  • The fridge in our homes uses electricity to keep things cool.
  • The tube light and electric bulbs use electricity to produce light.
  • The water heater used in houses also runs with the help of electricity.

Circuit

A circuit is a closed path along which electricity can flow.

A simple circuit can be formed by connecting a bulb and a battery with connecting wires.

There are two types of circuits

  • The closed or complete circuit
  • Open circuit

Closed-circuit

The circuit is closed when there is no interruption in the path in which current flows. The current passes without any problem in a complete circuit.

Open circuit

A circuit in which there is a gap at some point is called an open circuit. The current flow is interrupted in such a circuit.

Switch

We can use a switch to open and close a circuit with its on and off positions. When it is on, the path is closed, and when it is off, it is open.

Learning Videos for 6th Grade Science - Electricity and Circuits

Electricity and Circuits Sample Questions for Class 6

Question 1

Most of the electricity carrying wires near highways do not have a plastic covering like the wires used at homes. But there is no substantial loss of energy because
A. Air is a bad insulator of electricity
B. Air is a bad conductor of electricity
C. Electricity flows very fast near highways
D. Both Air is a bad conductor of electricity & Electricity flows very fast near highways

Question 2

There is a mistake in the following classification. Which of the following is placed incorrectly in the groups? Non-conductor of electricity Conductor of electricity Wool Copper Cotton Brass Plastic Iron Cork Steel Carbon Silver
A. Wool
B. Carbon
C. Iron
D. Silver

Question 3

Electric heaters used for cooking have the filament or the heating coil on a plate made up of clay because
A. Clay can be mould in any shape
B. Clay is a bad conductor of electricity
C. Both Clay can be mould in any shape & Clay is a bad conductor of electricity
D. None of these

Question 4

The main function of a switch is to
A. Allow charges to flow
B. Complete or break a circuit
C. Make the bulb glow easily
D. Prevent electric shocks

Question 5

Which of the following statements is/are wrong? (i) Human body is a bad conductor of electricity. (ii) The air gap surrounding an electric circuit acts as an insulator (iii) A battery always has two terminals. (iv) When electricity lights up a bulb, no heat is produced
A. (i) & (ii)
B. (iii) & (iv)
C. (i) & (iv)
D. (ii) & (iii)