Physics
Grade-8
Easy
Question
When a bar magnet is moved in soil containing iron particles, the particles stick to it ___.
- Uniformly
- Non-uniformly
- Only at the centre
- None of the above
Hint:
Strength of the magnet.
The correct answer is: Non-uniformly
The amount of Iron Particles that stick to a bar magnet depends on the strength of the magnet. The magnetism of a bar magnet is maximum at its two poles and minimum in the middle. Hence, maximum iron filings will stick at the two ends of the magnet and minimum in the middle.
Related Questions to study
Physics
A freely suspended bar magnet always rests in the ____ direction.
A freely suspended bar magnet always rests in the ____ direction.
PhysicsGrade-8
Physics
The end of a bar magnet which points towards geographic north of the Earth is called the _____ pole.
The end of a bar magnet which points towards geographic north of the Earth is called the _____ pole.
PhysicsGrade-8
Physics
The head of a hammer is made up of a ___.
The head of a hammer is made up of a ___.
PhysicsGrade-8
Physics
Which of the following sticks to a magnet?
Which of the following sticks to a magnet?
PhysicsGrade-8
Physics
The materials which get attracted towards a magnet are called ____ materials.
The materials which get attracted towards a magnet are called ____ materials.
PhysicsGrade-8
Biology
What type of mutation happens to just one base?
What type of mutation happens to just one base?
BiologyGrade-8
Biology
A substitution mutation that has no effect on amino acids sequence
A substitution mutation that has no effect on amino acids sequence
BiologyGrade-8
Biology
The condition of sickle cell anemia is due to the
The condition of sickle cell anemia is due to the
BiologyGrade-8
Biology
A recessive mutation is one which
A recessive mutation is one which
BiologyGrade-8
Biology
Mutations which do not cause any functional change in protein are known as
Mutations which do not cause any functional change in protein are known as
BiologyGrade-8
Biology
Harmful mutations does not get eliminated from the gene pool because
Harmful mutations does not get eliminated from the gene pool because
BiologyGrade-8
Biology
How many kinds of mutations are found in DNA which includes mutation of only one base?
How many kinds of mutations are found in DNA which includes mutation of only one base?
BiologyGrade-8
Biology
What is mutagenesis?
What is mutagenesis?
BiologyGrade-8
Biology
DNA molecule segment is: TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
DNA molecule segment is: TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
BiologyGrade-8
Biology
Identify the DELETION mutation from the following:
ATG CCA AAT
Identify the DELETION mutation from the following:
ATG CCA AAT
BiologyGrade-8
