EASY
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Identify the forces that are in action when a magnet sticks to a fridge door.

Important Questions on Balanced Forces

EASY
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces

Write three main characteristics of a magnet.

MEDIUM
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
A body has a negative charge of 1 μc. It means the body has gained:
EASY
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
Calculate the number of electrons constituting one coulomb of charge.
EASY
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
List the various shapes of magnets that you can find.
EASY
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
_____ is the force exerted by a magnet on magnetic substances.
EASY
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
List two properties of a magnet.
EASY
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
Cotyledons are also called-
EASY
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
Write two uses of magnets.
MEDIUM
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
How will you prepare your own magnetic compass?
EASY
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces

Explain the term:

Compass

EASY
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
A magnetic compass is a device which is widely used by the sailors.
HARD
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
Find out information on magnetic levitation and its applications. 
EASY
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
A _____ is a device used to find directions.
MEDIUM
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
Magnets are used in maglev trains. Explain.
EASY
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
Why does the door of refrigerator left slightly open, shut automatically?
EASY
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
Why does a freely suspended magnet point in the north-south direction?
EASY
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
Magnets should not be placed near a:
MEDIUM
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
Magnetite is a type of mineral that can attract iron.
EASY
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces
Before the invention of a compass, sailors used stars to find direction. In what way is using compass better?
EASY
Physical and Earth Science>Systems>Balanced Forces>Non-contact Forces

(a) Name two magnetic poles which attract each other.

(b) Name two magnetic poles which repel each other.