Magnetism
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Magnetic and Non-magnetic materials
SubtopicMagnetic and Non-magnetic materials under Magnetism for Grade 6 ICSE.
Preview questions (no answers)
- 1.
Identify the non-magnetic material from the following options:
A.Iron
B.Steel
C.Paper
D.Nickel
- 2.
What property of iron makes it useful for making temporary magnets?
A.It is non-magnetic
B.It is a magnetic material
C.It is very light
D.It does not conduct electricity
- 3.
Which of these is NOT a magnetic material?
A.Iron
B.Cobalt
C.Nickel
D.Zinc
- 4.
If a material is repelled by a magnet, it means the material is:
A.A non-magnetic material
B.Another magnet
C.A piece of wood
D.A piece of glass
- 5.
If you hold a magnet near a bowl of water containing a floating needle that has been magnetized, the needle will move. This shows that:
A.Water is a magnetic material
B.Magnetic force can act through non-magnetic substances like water
C.The needle is no longer a magnet
D.The water is pushing the needle
- 6.
Which of these materials would be attracted to a magnet?
A.A 5-rupee coin (mostly Ferritic Stainless Steel)
B.A plastic ruler
C.An eraser
D.A glass marble
- 7.
Why do manufacturers often put a 'keeper' across the poles of a horse-shoe magnet?
A.To make it look better
B.To provide a path for magnetic field lines and prevent 'self-demagnetization'
C.To make the magnet heavier
D.To insulate the poles
- 8.
Why are non-magnetic materials like brass or plastic used to hold magnets in place in many industrial machines?
A.To increase the magnetic flux
B.To prevent the magnet from sticking to the holder or losing its field to the casing
C.Because they are stronger than iron
D.To turn the holder into a magnet
- 9.
If you place a magnetic material in a vacuum and bring a magnet near it, what will happen?
A.The magnet will not attract it because there is no air
B.The magnet will attract it just as it does in air
C.The magnetic force will be blocked by the vacuum
D.The material will explode
- 10.
The term 'Ferromagnetic' refers to materials that:
A.Are weakly attracted by magnets
B.Are strongly attracted by magnets and can be magnetized
C.Are repelled by magnets
D.Only exist in the core of the Earth
Download the worksheet for Magnetism - Magnetic and Non-magnetic materials to practice offline. It includes additional chapter-level practice questions.
Properties of Magnets
SubtopicProperties of Magnets under Magnetism for Grade 6 ICSE.
Preview questions (no answers)
- 1.
What will happen if a North pole of a magnet is brought near an iron nail?
A.The nail will be repelled
B.The nail will be attracted
C.The nail will melt
D.Nothing will happen
- 2.
When iron filings are sprinkled around a bar magnet, they form patterns that show the:
A.Weight of the magnet
B.Color of the magnet
C.Magnetic field lines
D.Temperature of the magnet
- 3.
Which of these is a non-magnetic material?
A.Steel
B.Cobalt
C.Wood
D.Nickel
- 4.
The directive property of a magnet is due to the influence of:
A.The Sun
B.The Moon
C.Earth's magnetic field
D.Electricity
- 5.
In the Earth's magnetic field, the magnetic lines of force near the surface are approximately:
A.Converging at the equator
B.Parallel to each other
C.Diverging from the center
D.Randomly oriented
- 6.
Which of these pairs will show attraction?
A.North pole and North pole
B.South pole and South pole
C.North pole and an unmagnetized iron bar
D.South pole and a piece of copper
- 7.
Which method of making a magnet involves rubbing an iron bar with one pole of a magnet from one end to the other without lifting it in between?
A.Single touch method
B.Double touch method
C.Electric method
D.Magnetic induction method
- 8.
When storing magnets with keepers, what happens to the 'molecular magnets' inside the keeper?
A.They stay randomly oriented.
B.They align to form a bridge that completes the magnetic circuit.
C.They become permanently magnetized themselves.
D.They vibrate to generate a counter-magnetic field.
- 9.
If a magnet is broken into many small pieces, each piece is a magnet. This supports which theory?
A.The Electron Theory
B.The Molecular Theory of Magnetism
C.The Theory of Relativity
D.The Big Bang Theory
- 10.
Which of the following is a naturally occurring magnet?
A.Anthracite
B.Lodestone
C.Hematite
D.Bauxite
Download the worksheet for Magnetism - Properties of Magnets to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
In a diagram of magnetic field lines, what do the arrows on the lines represent?
A.The speed of the magnet
B.The direction of the magnetic force
C.The weight of the magnet
D.The temperature of the poles
- 2.
Magnetic field strength is at the center of the bar magnet compared to the poles.
A.Higher
B.Lower
C.Exactly the same
D.Infinite
- 3.
Which of the following describes the nature of magnetic lines of force?
A.Broken and discontinuous
B.Continuous and smooth
C.Sharp and angular
D.Random and overlapping
- 4.
What happens to the magnetic field lines if you reverse the poles of a magnet?
A.They disappear
B.They change their direction by 180 degrees
C.They become straight lines
D.They turn into electric field lines
- 5.
What happens to the magnetic field strength of a solenoid if the number of turns in the coil is doubled while the current remains the same?
A.It becomes half
B.It stays the same
C.It becomes double
D.It becomes four times stronger
- 6.
What is the shape of the magnetic field lines around a straight current-carrying conductor?
A.Straight lines parallel to the wire
B.Straight lines perpendicular to the wire
C.Concentric circles with the wire at the center
D.Parabolic curves
- 7.
Which instrument is used to determine the direction of the magnetic field at a specific location?
A.Ammeter
B.Magnetic Compass
C.Barometer
D.Thermometer
- 8.
A student places a compass near a wire carrying a strong electric current and notices the needle moves. What does this suggest about the space around the wire?
A.The wire has become a permanent magnet.
B.An electric current creates its own magnetic field in the surrounding space.
C.The wire is attracting the metal of the compass casing.
D.Electricity is leaking out of the wire and into the compass.
- 9.
What is the primary reason for using a 'keeper' (a soft iron bar) when storing bar magnets in pairs?
A.To prevent them from rusting.
B.To provide a path for the magnetic field lines to form a closed loop, maintaining their strength.
C.To keep the magnets from attracting other metal objects in the lab.
D.To increase the weight of the magnets so they don't move.
- 10.
If the magnetic field lines are entering a surface, what is the polarity of that surface?
A.North Pole
B.South Pole
C.Neutral
D.Positive
Download the worksheet for Magnetism - Magnetic Field to practice offline. It includes additional chapter-level practice questions.
Care and Storage of Magnets
SubtopicCare and Storage of Magnets under Magnetism for Grade 6 ICSE.
Preview questions (no answers)
- 1.
Storing a magnet near a computer screen might cause:
A.The screen to turn into a mirror
B.Color distortion on the screen
C.The computer to run faster
D.The screen to become larger
- 2.
In a pair of bar magnets, how many wooden strips are usually placed between them?
A.One
B.Two
C.Three
D.Four
- 3.
Which of the following is most harmful to a magnet's life?
A.Low temperature
B.Wooden storage
C.Rough handling
D.Using iron keepers
- 4.
Magnets lose their properties if they are NOT stored properly. This is called:
A.Magnetic induction
B.Self-demagnetization
C.Magnetization
D.Magnetic saturation
- 5.
If you have to store four bar magnets, how should they be arranged in a box?
A.In two pairs, each pair with its own keepers
B.All four stacked with all North poles together
C.Spread out as far as possible from each other
D.Wrapped together in a single piece of aluminum foil
- 6.
What is the best way to handle a magnet to ensure it doesn't break?
A.Throw it into a box from a distance
B.Place it down gently on a soft or non-magnetic surface
C.Let it snap onto other magnets as hard as possible
D.Hit it with a hammer to test its strength
- 7.
Why should magnets be kept away from older mobile phones and electronic tablets?
A.They may drain the battery
B.They can interfere with internal sensors like the digital compass
C.They will cause the screen to turn into a mirror
D.They will make the device too heavy to hold
- 8.
Which of the following would be an example of 'misuse' of a magnet that leads to its gradual weakening?
A.Using it to pick up paper clips
B.Using it as a makeshift hammer to drive a small nail
C.Placing it on a wooden table
D.Keeping it in a plastic bag
- 9.
What is the primary purpose of storing magnets in a 'North-to-South' sequence in a storage rack?
A.To make them easier to count
B.To ensure that the magnetic field lines form a continuous loop through all the magnets, maintaining their strength
C.To prevent them from attracting dust from the air
D.To allow the magnets to share their 'electricity'
- 10.
Why is 'self-demagnetization' more of a problem for short, thick bar magnets than for long, thin ones?
A.Short magnets are harder to hold
B.In short magnets, the poles are closer together, increasing the strength of the opposing internal field
C.Thin magnets have more surface area to breathe
D.Long magnets are made of better quality steel
Download the worksheet for Magnetism - Care and Storage of Magnets to practice offline. It includes additional chapter-level practice questions.