Which of these materials can be used to make at a temporary magnet ?
- ✓a piece of iron
- Ba piece of paper
- Ca piece of wood
- Da piece of plastic
Answer: A.
View full solution →Question types
Exploring Magnets question types
160 questions across 9 question groups — pick any mix to generate a Science paper with step-by-step answer keys.
160
Questions
9
Question groups
5
Question types
01
[1 Marks Each] M.C.Q.
21 Q→02Assertion (A) & Reason (B) MCQ
10 Q→03[1 Marks Each] Blanks
33 Q→04True Or False.[1 Marks Each]
31 Q→05[1 Marks Each] QUE - ANS
39 Q→06[3 Marks Each] QUE-ANS
8 Q→07[5 Marks Each] QUE-ANS
1 Q→08Answer The Following Questions In Short.[2 Marks Each]
16 Q→09Match the following.
1 Q→Sample Questions
Exploring Magnets questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Which part of the following bar magnet has the weakest pull?
- AA
- ✓B
- CC
- DD
Answer: B.
View full solution →What will happen when the two magnets shown below are pushed towards each other?
- ✓They will repel each other
- BThey will heaf up
- CThey will attract each other
- DNothing will happen
Answer: A.
View full solution →Magnetic can be protected against self-demagnetisation by keeping the two magnets
- Awith their similar poles on the same side and soft iron keeper in between
- ✓with their opposite poles joined with soft iron keepers and a wooden piece in between the two
- Cat angles to each other
- Dover each other lengthwise.
Answer: B.
View full solution →A compass shows the direction of
- Acast
- Bnorth
- ✓north-south
- Dwest
Answer: C.
View full solution →Assertion (A):The door of a refrigerator remains tightly closed.
Reason : magnet used in refrigerator door keep it tightly closed.
Reason : magnet used in refrigerator door keep it tightly closed.
- ✓Both (A) and (R) are true and (R) is the correct explanation of (A).
- BBoth (A) and (R) are true and (R) is not the correct explanation of (A).
- C(A) is true but (R) is false.
- D(A) is false but (R) is true.
Answer: A.
View full solution →Assertion (A) : A freely suspended magnet always points in the east-west direction.
Reason : Like magnetic poles repel each other, unlike magnetic poles attract each other.
Reason : Like magnetic poles repel each other, unlike magnetic poles attract each other.
- ABoth (A) and (R) are true and (R) is the correct explanation of (A).
- BBoth (A) and (R) are true and (R) is not the correct explanation of (A).
- C(A) is true but (R) is false.
- ✓(A) is false but (R) is true.
Answer: D.
View full solution →Assertion (A) : Every magnet, has a north pole and a south pole.
Reason : It is possible to have a magnet having only one pole.
Reason : It is possible to have a magnet having only one pole.
- ABoth (A) and (R) are true and (R) is the correct explanation of (A).
- BBoth (A) and (R) are true and (R) is not the correct explanation of (A).
- ✓(A) is true but (R) is false.
- D(A) is false but (R) is true.
Answer: C.
View full solution →Assertion (A) : Materials that are not attracted towards magnet are called nonmagnetic.
Reason: Non-magnetic materials cannot be converted into magnets.
Reason: Non-magnetic materials cannot be converted into magnets.
- ABoth (A) and (R) are true and (R) is the correct explanation of (A).
- ✓Both (A) and (R) are true and (R) is not the correct explanation of (A).
- C(A) is true but (R) is false.
- D(A) is false but (R) is true.
Answer: B.
View full solution →Assertion (A) : Bar magnets are kept in pairs with their unlike poles on the same side.
Reason : Magnets become weak if they are not stored properly.
Reason : Magnets become weak if they are not stored properly.
- ✓Both (A) and (R) are true and (R) is the correct explanation of (A).
- BBoth (A) and (R) are true and (R) is not the correct explanation of (A).
- C(A) is true but (R) is false.
- D(A) is false but (R) is true.
Answer: A.
View full solution →A magnet always has $.........$ poles.
View full solution →The needle of a magnetic compass rests along the $.........$ direction.
View full solution →The materials that are attracted towards a magnet are called $.........$.
View full solution →Unlike poles of two magnets $.........$ each other, whereas like poles $.........$ each other.
View full solution →And the other pole always points towards the $.........$
View full solution →A freely suspended bar magnet always aligns with the north-south direction.
Iron filings mostly stick in the middle of a bar magnet when it is brought near them.
Similar poles of a magnet repel each other.
A magnet can be broken into pieces to obtain a single pole.
A compass needle is a magnet.
It was observed that a pencil sharpener gets attracted by the poles of a magnet, although its body is made of plastic. Name a material that might have been used to make some part of it.
Mention some important precautions to handle magnets.
Why magnets should be kept away from mobiles, computer and compact disks $(CDs)$?
View full solution →Why should we not beat or hammer a magnet?
A bar magnet is cut into two pieces $A$ and $B$, from the middle, as shown in Fig.
Will the two pieces act as individual magnets? Mark the poles of these two pieces. Suggest an actimty to verify your answer.
View full solution →Will the two pieces act as individual magnets? Mark the poles of these two pieces. Suggest an actimty to verify your answer.
Reshma bought three identical metal bars from the market. Out of these bars, two were magnets and one was just a piece of iron. How will she identify which two amongst the three could be magnets (without using any other material)?
What is the correct way of storing a bar magnet? Also support your answer with diagram.
What are the precautions need to be taken while handling a magnet
How can you show that unlike poles attract each other while like poles repel each other?
shows a magnetic compass. What will happen to the position of its needle if you bring a bar magnet near it? Draw a diagram to show the effect on the needle on bringing the bar magnet near it. Also draw the diagram to show the effect when the other end of the bar magnet is brought near it.?
Bhawana witnessed an interesting game at the fair. A duck was floating in a tub. When a plate containing some grains of rice was brought close to the duck, the duck moved towards the plate. But, when a plate containing some pebbles was brought close to; the duck, it moved away from the plate. Explain how this could have been possible.
three magnets are arranged on a table in the form of the shape shown in Fig. $4.17$. What is the polarity, $N$ or $S$, at the ends $1, 2, 3, 4, 5$ and $6$ of the magnets? Polarity of one end $(5)$ is given for you.
View full solution →two ring magnets $X$ and $Y$ are arranged as shown in mg. $4.16$. It is observed that the magnet $X$ does not move down further. What could be the possible reason? Suggest a way to bring the magnet $X$ in contact with magnet $Y$, without pushing either of the magnets.
View full solution →While a mechanic was repairing a gadget using a screw driver, the steel screws kept falling down. Suggest a way to solve the problem of the mechanic on the basis of what you have learnt in this chapter.
If the earth is itself a magnet, can you guess the poles of Earth’s magnet by looking at the direction of the magnetic compass?
A bar magnet has no markings to indicate its poles. How would you find out near which end its North pole is located without using another magnet?
| Column A | Column B |
| (a) Poles of a bar magnet are present | (i) Magnetic |
| (b) The rock that attracts iron pieces | (ii) Nickel and cobalt |
| (c) The materials that get attracted towards a magnet | (iii) At the ends |
| (d) Except iron, these materials are also magnetic | (iv) North-South |
| (e) A freely suspended bar magnet always comes torest in the direction | (v) Repel each other |
| (vi) Lodestone |
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