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science

Grade-3

Easy

Question

The garbage in a dump yard contains a lot of materials made of iron. How would a person separate the iron waste easily?

Pick up all the iron articles one by one.
Remove all the other types of wastes so that only metal wastes remain.
Move a suitable magnet through the garbage so that the magnet picks up all the iron waste.
None of the above.

hint Hint:

Magnet attracts iron

The correct answer is: Move a suitable magnet through the garbage so that the magnet picks up all the iron waste.

Move a suitable magnet through the garbage so that the magnet picks up all the iron waste.

Since, magnet attracts things made up of iron.

Related Questions to study

The magnet on the left is placed on a table. Another magnet is brought from the right towards the magnet on the table in a way shown below. Pick the arrow that points in the direction in which the magnet in the table would move.

The magnet on the left is placed on a table. Another magnet is brought from the right towards the magnet on the table in a way shown below. Pick the arrow that points in the direction in which the magnet in the table would move.

The magnet on the left is placed on a table. Another magnet is brought from the right towards the magnet on the table in a way shown below. Pick the arrow that points in the direction in which the magnet in the table would move.

The magnet on the left is placed on a table. Another magnet is brought from the right towards the magnet on the table in a way shown below. Pick the arrow that points in the direction in which the magnet in the table would move.

The magnet on the left is placed on a table. Another magnet is brought from the right towards the magnet on the table in a way shown below. Pick the arrow that points in the direction in which the magnet in the table would move.

The magnet on the left is placed on a table. Another magnet is brought from the right towards the magnet on the table in a way shown below. Pick the arrow that points in the direction in which the magnet in the table would move.

parallel

Pick the odd one out.

Pick the odd one out.

The objects which are not attracted to a magnet are ____.

The objects which are not attracted to a magnet are ____.

The points on a bar magnet where the magnetism is the highest are called _____.

The points on a bar magnet where the magnetism is the highest are called _____.

parallel

A child wanted to make a toy train. He made the compartments and the engine of the train using small equally sized boxes and the wheels using cardboard cutouts. He wanted to connect the compartments using bar magnets. Which of the following pictures represent the way in which he should fix the bar magnets in order to connect the compartments?

A child wanted to make a toy train. He made the compartments and the engine of the train using small equally sized boxes and the wheels using cardboard cutouts. He wanted to connect the compartments using bar magnets. Which of the following pictures represent the way in which he should fix the bar magnets in order to connect the compartments?

The magnet on the left is placed on a table. Another magnet is brought from the right towards the magnet on the table in a way shown below. Pick the arrow that points in the direction in which the magnet in the table would move.

The magnet on the left is placed on a table. Another magnet is brought from the right towards the magnet on the table in a way shown below. Pick the arrow that points in the direction in which the magnet in the table would move.

Match the following.

Match the following.

parallel

Match the following.

Match the following.

In the picture of the hammer shown below is attracted towards a magnet and is not.

In the picture of the hammer shown below is attracted towards a magnet and is not.

Unlike poles of two magnets placed close to each other ____.

Unlike poles of two magnets placed close to each other ____.

parallel

When a magnet is moved through a heap of iron fillings, the minimum amount of iron fillings will be stuck to the ____ of the magnet.

When a magnet is moved through a heap of iron fillings, the minimum amount of iron fillings will be stuck to the ____ of the magnet.

When a magnet is moved through a heap of iron fillings, the maximum amount of iron fillings will be stuck to the ____ of the magnet.

When a magnet is moved through a heap of iron fillings, the maximum amount of iron fillings will be stuck to the ____ of the magnet.

When a bar magnet is hung from the ceiling using a thread its north and south poles point towards the _ and __ direction respectively.

When a bar magnet is hung from the ceiling using a thread its north and south poles point towards the _ and __ direction respectively.

parallel

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