Look at the given picture and answer the questions asked. What would happen if the negative terminals of both the cells are in contact?

The electric circuit becomes an open circuit when negative terminals of both the cells are in contact. Electric current doesn’t flow from a positive terminal to a positive terminal in a circuit. Hence, the bulb does not glow. The positive terminal of one cell should always be connected to the negative terminal of another cell.

Look at the given picture and answer the questions asked. What would happen if the electric wire is changed with a plastic wire? Give reason.

Electric current doesn’t flow through the circuit if the electric wire is changed with a plastic wire. The plastic wire is an insulator.

Look at the given picture and answer the questions asked. What are the necessary conditions for an electric circuit to work?

An electric circuit should be a closed circuit for it to work. It consists of a battery (cell), electric wire, a switch, and, a bulb or electrical appliances with the proper connection.

Manoj sets up a circuit as shown below. In the following table, put a tick in the boxes for the material (X) that will cause the alarm to sound. Material X Will the alarm sound? Aluminium rod Zinc plate Carbon rod Rubber sole Glass bottle Identify the property that the material 'X' must possess to sound an alarm.

Material X Will the alarm sound? Aluminium rod Zinc plate Carbon rod Rubber sole No Glass bottle No Aluminium rod, zinc plate, and carbon rods are good conductors of electricity. A circuit will be closed only when a conducting material is used to make the circuit. Hence, the alarm will sound. Rubber sole and glass bottles are insulators.

Vedant sets up a simple electric circuit as shown here. He then tested the circuit using rod ‘p’ and observed if the bulb lit up. He then repeated the experiment using other rods ‘Q’ and ’R’. He placed each rod near some paper clips and observed if the rod attracted the paper clips. He recorded his observations as shown below. Rod Bulb lit up Attracted paper clips P X X Q R X Which of the following materials could have been used to make rods P, Q, and R? Rod P Rod Q Rod R a Metallic Non-metallic Metallic b Non-metallic Metallic Metallic c Non-metallic Non-metallic Metallic d Non-metallic Metallic Non-metallic

Materials used are (d) which are Rod ‘P’- Non-metallic, Rod ‘Q’- Metallic, and Rod ‘R’- Non-metallic Note: Metals are good conductors of electricity.

MEDIUM

6th CBSE

IMPORTANT

Earn 100

Name the two main types of cells. Compare their properties.

Important Questions on Electric Current and Circuit

MEDIUM

6th CBSE

IMPORTANT

Wow Science Hands-on Learning in Science 6>Chapter 3 - Electric Current and Circuit>EVALUATE>Q B

We hear about accidents due to electric shock. How can we use electricity safely?

MEDIUM

6th CBSE

IMPORTANT

Wow Science Hands-on Learning in Science 6>Chapter 3 - Electric Current and Circuit>EVALUATE>Q C

Draw a well-labelled diagram of a dry cell. Explain the function of the chemicals manganese dioxide and ammonium chloride used in it.

MEDIUM

6th CBSE

IMPORTANT

Wow Science Hands-on Learning in Science 6>Chapter 3 - Electric Current and Circuit>EVALUATE>Q C

Avani’s family uses filament bulbs at home while Om’s family uses LED bulbs. Which family will save more electricity? Write five other ways to save electricity.

MEDIUM

6th CBSE

IMPORTANT

Wow Science Hands-on Learning in Science 6>Chapter 3 - Electric Current and Circuit>EVALUATE>Q C

Look at the given picture and answer the questions asked.
Question Image

What would happen if the negative terminals of both the cells are in contact?

EASY

6th CBSE

IMPORTANT

Wow Science Hands-on Learning in Science 6>Chapter 3 - Electric Current and Circuit>EVALUATE>Q C

Look at the given picture and answer the questions asked.

Question Image

What would happen if the electric wire is changed with a plastic wire? Give reason.

MEDIUM

6th CBSE

IMPORTANT

Wow Science Hands-on Learning in Science 6>Chapter 3 - Electric Current and Circuit>EVALUATE>Q C

Look at the given picture and answer the questions asked.

Question Image

What are the necessary conditions for an electric circuit to work?

MEDIUM

6th CBSE

IMPORTANT

Wow Science Hands-on Learning in Science 6>Chapter 3 - Electric Current and Circuit>EVALUATE>Q D

Manoj sets up a circuit as shown below.
Question Image

In the following table, put a tick in the boxes for the material (X) that will cause the alarm to sound.

Material X	Will the alarm sound?
Aluminium rod
Zinc plate
Carbon rod
Rubber sole
Glass bottle

Identify the property that the material 'X' must possess to sound an alarm.

MEDIUM

6th CBSE

IMPORTANT

Wow Science Hands-on Learning in Science 6>Chapter 3 - Electric Current and Circuit>EVALUATE>Q E

Vedant sets up a simple electric circuit as shown here.
Question Image

He then tested the circuit using rod ‘p’ and observed if the bulb lit up. He then repeated the experiment using other rods ‘Q’ and ’R’. He placed each rod near some paper clips and observed if the rod attracted the paper clips. He recorded his observations as shown below.

Rod	Bulb lit up	Attracted paper clips
P	X	X
Q
R		X

Which of the following materials could have been used to make rods P, Q, and R?

	Rod P	Rod Q	Rod R
a	Metallic	Non-metallic	Metallic
b	Non-metallic	Metallic	Metallic
c	Non-metallic	Non-metallic	Metallic
d	Non-metallic	Metallic	Non-metallic

Name the two main types of cells. Compare their properties.

Important Questions on Electric Current and Circuit

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