Explore topic-wise MCQs in 6th Class.

This section includes 2267 Mcqs, each offering curated multiple-choice questions to sharpen your 6th Class knowledge and support exam preparation. Choose a topic below to get started.

1051.

Lisa did an experiment to find out which part of the magnet attracts the most pins. Which of the following readings is correct regarding the number of pins attracted by the different parts of the magnet?

A.  P-8    Q-1    R-2    S-8
B.  P-8 Q-3 R-3 S-2
C.  P-3   Q-2    R-3    S-8
D.  P-1    Q-8    R-8   S-1
Answer» B.  P-8 Q-3 R-3 S-2
1052.

Which of the following does NOT contain a magnet in it?

A.  A torch
B.  A radio
C.  A fan        
D.  Both (B) and (C)
Answer» B.  A radio
1053.

Read the following table and answer the questions from. P Q R Magnets Magnetic substances Non-magnetic substances After repeated rubbing with a magnet in the same direction, a piece of substance fails to get magnetized. To which group does it belong?

A.  P and Q                              
B.  Q and R              
C.         Q                           
D.         R
Answer» E.
1054.

In which of the following is a magnet used?

A.  Pin holder   
B.  Plastic toy
C.  Car bumper  
D.  Glass tumbler
Answer» B.  Plastic toy
1055.

Why does a compass always point to the north direction?

A.  The compass is made up of a magnetic material.
B.  The compass is a magnet with the pointer seeking the south pole of the earth.
C.  The compass is a magnet with the pointer seeking the north pole of the earth.
D.  The compass is an electromagnet that is charged by rubbing.
Answer» D.  The compass is an electromagnet that is charged by rubbing.
1056.

For which of the following purposes is a compass used? (i) For alignment along N-S direction (ii) To find the direction at sea (iii) To identify magnetic materials

A.  Only (i) and (ii)
B.  Only (ii) and (iii)
C.  Only (i) and (iii)
D.  (i), (ii) and (iii)
Answer» E.
1057.

Why should we pivot the compass needle on a sharp pin?

A.  To minimize the magnetic effect on the pin
B.  To maximize the magnetic effect on the pin                          
C.  To minimize the friction between the pin and the compass needle
D.  To ensure that the compass needle will not drop from the pivoted point
Answer» D.  To ensure that the compass needle will not drop from the pivoted point
1058.

Which of the following ways will NOT cause a magnet to lose its magnetism?

A.  Heating it strongly over a flame
B.  Dropping it on the floor repeatedly
C.  Coating it with a layer of oil
D.  Hitting it with a hammer repeatedly
Answer» D.  Hitting it with a hammer repeatedly
1059.

Harish was asked to identify a piece of soft iron put in a basket of 10 magnets of the same shape and size. Which is the easiest way of identifying the iron piece at the earliest?

A.  By suspending the magnets one at a time
B.  By conducting repulsion test using any two magnets at a time
C.  By bringing another strong magnet near the basket
D.  By dropping all magnets into the water
Answer» C.  By bringing another strong magnet near the basket
1060.

Reeta puts two different objects in each of the following containers. Container (i): Copper coin and iron nail Container (ii): Steel nail and aluminium earring Container (iii): Marble and gold coin Container (iv): Nickel coin and steel nail She can use a magnet to separate the objects in containers

A.  (i) and (ii)
B.  (i), (ii) and (iii)
C.  (i), (ii) and (iv)
D.  (i), (ii), (iii) and (iv).
Answer» B.  (i), (ii) and (iii)
1061.

Read the following table and answer the questions from. P Q R Magnets Magnetic substances Non-magnetic substances A few examples of substances are given below. Iron,  Cobalt,  Nickel To which group do they belong?

A.  P                           
B.         Q                           
C.  R                           
D.         P and R
Answer» C.  R                           
1062.

Soft iron pieces are placed across the ends of bar magnets when stored. What are such pieces called?

A.  Preservatives 
B.         Keepers             
C.         Compasses   
D.         Poles
Answer» C.         Compasses   
1063.

Arpita is standing in the middle of a cross road with a compass. The red portion of the compass needle is pointing towards her. She wants to go towards east then she should turn

A.  Right and then go straight
B.  Left and then go straight
C.  Right and then go left
D.  Left and then go right.
Answer» C.  Right and then go left
1064.

A How is a compass useful to us?

A.  In finding the altitude of a place
B.  In finding only the north of a place
C.  In finding all the directions of a place
D.  In making artificial magnets
Answer» D.  In making artificial magnets
1065.

When Asha suspended four bars of different materials from a pole and brought the North pole of a bar magnet near part P and Q of each bar one by one as shown in figure, then observations she recorded are as follows:             Bar Part P Part Q I Pushed Pulled II Nothing  happened      Nothing   happened     III Pulled  Pushed IV Pulled  Pulled  Which of the following sets correctly represents metal bars I, II, III and IV?

A. Bar I Bar II Bar III Bar IV  Magnet Stainless steel Bar Magnet Iron bar
B. Bar I Bar II Bar III Bar IV  Magnet Iron bar Magnet Glass bar
C. Bar I Bar II Bar III Bar IV   Magnet Iron bar Magnet
D. Bar I Bar II Bar III Bar IV  Magnet Iron bar Glass bar Stainless steel Bar
Answer» B. Bar I Bar II Bar III Bar IV  Magnet Iron bar Magnet Glass bar
1066.

Which of the following will NOT be attracted by a magnet?

A.  Iron                      
B.         Nickel  
C.         Gold                    
D.         Cobalt
Answer» D.         Cobalt
1067.

Arun suspended a bar magnet on a string as shown in the diagram below. He brought 3 bar-shaped objects P, Q and R towards the bar magnet. He placed the ends (X and Y) of each object, near the north pole of the bar magnet and recorded his observations in the table below. Object End X brought near to N pole End Y brought near to N pole P N pole repelled   N pole attracted Q N pole attracted   N pole repelled R N pole remains   stationary N pole remains stationary Which of the object(s) is/are the magnet?

A.  P only                        
B.  Q only
C.         P and Q only   
D.         P and R only
Answer» D.         P and R only
1068.

Rakesh has one bar magnet, two iron pieces and all of them are of the same size and shape. Which of the following can be used for identifying them? (i) Another magnet (ii) A compass (iii) A piece of  thread                

A.  Only (i) and (ii)
B.  Only (ii) and (iii)
C.  Only (i) and (iii)
D.  All the three
Answer» E.
1069.

Which of the following is the best way to keep magnets?                    

A.                     
B.       
C.      
D.          
Answer» E.
1070.

Which of the following is incorrect?      

A.  To increase the magnetic strength, increase the number of strokes while creating magnets.
B.  To increase the magnetic strength, increase the number of coils around the nail.                         
C.  Magnetic force is a pulling force only.                                  
D.  Magnet may lose its magnetic property when heated to a very high temperature.  
Answer» D.  Magnet may lose its magnetic property when heated to a very high temperature.  
1071.

Study the given statements. (i) A compass is use d to show the directions. (ii) The needle of a compass is magnetic. (iii) The needle of a compass always indicates the north and the south directions of the earth. Identify the correct statements.

A.  Only (i) and (ii) 
B.  Only (ii) and (iii)
C.  Only (i) and (iii)
D.  All the three
Answer» E.
1072.

What is the special property of magnetic substances?

A.  They are repelled by magnets.
B.  They are attracted by magnets.
C.  They are both attracted and repelled by magnets.
D.  They cannot be made into magnets.
Answer» C.  They are both attracted and repelled by magnets.
1073.

Where does a compass work?

A.  Only in oceans or seas
B.  Only on land, where the earth's magnetic field is strong
C.  Only on high mountains
D.  At all the places within the earth's magnetic field
Answer» E.
1074.

In which direction does a magnet always point when suspended freely?

A.  South-West   
B.  North-South
C.  East-West    
D.  West-South
Answer» C.  East-West    
1075.

In which of the following a permanent magnet is not used?

A.  In magnetic door catchers
B.  Loudspeakers
C.  In compasses
D.  None of these
Answer» E.
1076.

A matchbox containing an unknown object is placed on a thin sheet of glass in the experimental set-up shown in the figure. When the bar magnet moves, it is able to drag the match box along. What is most likely to be found in the matchbox?  

A. Marble
B. Toothpick
C. Ten-cent coin
D. Steel ball bearing
Answer» E.
1077.

Where is the force of attraction of a magnet the maximum?

A.  At all sides
B.  All over the magnet
C.  At its poles
D.  At its centre
Answer» D.  At its centre
1078.

The figure shows a ring magnet, X, floating above another ring magnet, Y. This is because  

A.  Magnet X is lighter than magnet Y
B.  Magnet Vis more powerful than magnet X        
C.  The like poles of both magnets are facing each other and they repel each other             
D.  The unlike poles of both magnets are facing each other and they attract each other.                       
Answer» D.  The unlike poles of both magnets are facing each other and they attract each other.                       
1079.

In the given diagrams, compasses are used to plot the magnetic field around a bar magnet with poles marked N (North) and S (South). Which of the following diagrams correctly shows the expected field pattern?                             

A.           
B.            
C.            
D.           
Answer» E.
1080.

Pressure is directly proportional to

A. density
B. height/depth
C. acceleration due to gravity
D. all of these
Answer» E.
1081.

Two stones A and B of masses 2 kg and 5 kg respectively are released from same height in vacuum. Which will reach on the ground first?

A. Stone A
B. Stone B
C. Both will reach at same time
D. None of these
Answer» D. None of these
1082.

Name the device in the diagrams used to measure force.

A. spring scale     
B. voltmeter
C. thermometer   
D. graduated cylinder
Answer» B. voltmeter
1083.

The diagram below shows two dogs pulling on a rope with constant but unequal forces. In which compass direction will both dogs most likely move?

A. east            
B.          west
C. north            
D.          south
Answer» B.          west
1084.

Rahul starts drilling a steel nail in a wooden block with its sharp side. The area of sharp side is 0.1 m2. He applies a force of2N on it. How much pressure will the nail exert on the wooden block?

A. Pa                   
B.          0.2 Pa
C. 20 Pa              
D. 200 Pa
Answer» D. 200 Pa
1085.

Twinkle throws a stone of mass 1 kg in vertically upward direction. Its velocity continuously decreases. After attaining a certain height its velocity becomes zero and it starts falling towards earth under gravitational force. If the acceleration due to gravity working on it is10 m/sec2. Then, how much force will it exert on ground, when it will strike to the ground?

A. 10 N               
B.          20 N
C. N                    
D. 100 N
Answer» B.          20 N
1086.

Rajiv pulls a wooden box from one end with a force of 20 N, and Saurabh starts pushing the same box from opposite end with a force of 15N. If a resultant acceleration of 2m/sec2 creates in the wooden box. Find the mass of the wooden box. (Hint: Resultant of the force in the same direction is addative)

A. 5kg                  
B. 70kg
C. 2.5kg                           
D. 17.5kg
Answer» E.
1087.

In which condition the wooden block will move?

A. A                                 
B. B
C. Both A and B              
D. None of these
Answer» B. B
1088.

DIRECTIONS: Read the following three statements carefully and choose the correct option. Statement-1: Porters place a round piece of cloth on their heads. Statement-2: Pressure is inversely proportional to area on which it acts. Statement-3: Pressure is independent of area of surface in contact.

A. Statement (1) and (3) are incorrect while statement (2) is correct.
B. Statement (1) and (2) are incorrect while (3) is correct.
C. All the statements are correct.
D. All the statements are incorrect.
Answer» B. Statement (1) and (2) are incorrect while (3) is correct.
1089.

DIRECTIONS: Read the following three statements carefully and choose the correct option. Statement-1: It is easier to push a nail into a wooden box by the pointed end. Statement-2: Nail's head is easier to hit. Statement-3: Pressure applied on all nails is same whatever is their size.

A. Statement (1) and (3) are incorrect while statement (2) is correct.
B. Statement (1) and (2) are incorrect while (3) is correct.
C. All the statements are correct.
D. All the statements are incorrect.
Answer» B. Statement (1) and (2) are incorrect while (3) is correct.
1090.

Directions: The questions in this segment consists of two statements, one labelled as ?Assertion A? and the other labelled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reasons R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion: A body is momentarily at rest when it reverses the direction. Reason: A body cannot have acceleration if its velocity is zero at a given instant of time.

A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true and but R is not the correct explanation of A.
C. A is true but R is a false.
D. A is false but R is true.
Answer» D. A is false but R is true.
1091.

Directions: The questions in this segment consists of two statements, one labelled as ?Assertion A? and the other labelled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reasons R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion: An object can move with constant velocity if no net force acts on it. Reason: No net force is needed to move an object with constant velocity.

A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true and but R is not the correct explanation of A.
C. A is true but R is a false.
D. A is false but R is true.
Answer» B. Both A and R are true and but R is not the correct explanation of A.
1092.

Directions: The questions in this segment consists of two statements, one labelled as ?Assertion A? and the other labelled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reasons R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion: If the net external force on the body is zero, then its acceleration is zero. Reason: Acceleration does not depend on force.

A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true and but R is not the correct explanation of A.
C. A is true but R is a false.
D. A is false but R is true.
Answer» D. A is false but R is true.
1093.

DIRECTIONS: Read the passage given below and answer the questions that/allow. Passage Pressure is defined as the force exerted over a unit of area. \[\text{Pressure}\,\text{=}\frac{\text{force}}{\text{area}}\] Place a book on a bathroom scale and, whether you place it on its back, on its side, or balanced on a corner, it still exerts the same force. The weight reading is the same. Now balance the book on the palm of your hand and you sense a difference - the pressure of the book depends on the area over which the force is distributed. If a force of 20N is applied on the surface of area 0.1 m2 then pressure experienced is

A. 5N/m2 
B.          100 N/m2
C. 200 N/m2        
D. None of these
Answer» D. None of these
1094.

Directions: Match Column-I with Column-II and select the correct answer using the codes given below the columns. Column - I Column - II A. Fielder sloping a ball (p) Lifting B. Opening a door (q) Muscular force C. Shutting a door (r) Pulling D. Drawing a bucket of water from a well (s) pushing

A. \[A\to (q);B\to (p);C\to (r);D\to (s)\]
B. \[A\to (r);B\to (p);C\to (q);D\to (s)\]
C. \[A\to (q);B\to (r);C\to (s);D\to (p)\]
D. \[A\to (s);B\to (r);C\to (q);D\to (p)\]
Answer» D. \[A\to (s);B\to (r);C\to (q);D\to (p)\]
1095.

DIRECTIONS: Read the passage given below and answer the questions that/allow. Passage Pressure is defined as the force exerted over a unit of area. \[\text{Pressure}\,\text{=}\frac{\text{force}}{\text{area}}\] Place a book on a bathroom scale and, whether you place it on its back, on its side, or balanced on a corner, it still exerts the same force. The weight reading is the same. Now balance the book on the palm of your hand and you sense a difference - the pressure of the book depends on the area over which the force is distributed. Which book will exert more pressure?

A. Book 1            
B. Book 2
C. Both exert equal pressure
D. Can't be determined
Answer» C. Both exert equal pressure
1096.

Directions: Match Column-I with Column-II and select the correct answer using the codes given below the columns. Column - I Column - II A.\[dyne/c{{m}^{2}}\] (p) 760 mm of Hg B. 76 cm of Hg (q)\[N{{m}^{-2}}\] C. 1 Pa (r)\[1.013\times {{10}^{-5}}N{{m}^{-2}}\] D. 1 Pa (s)\[{{10}^{-1}}N{{m}^{-2}}\]

A. \[A\to (q);B\to (p);C\to (r);D\to (s)\]
B. \[A\to (r);B\to (p);C\to (q);D\to (s)\]
C. \[A\to (p);B\to (r);C\to (s);D\to (q)\]
D. \[A\to (s);B\to (p);C\to (q);D\to (r)\]
Answer» E.
1097.

Gaurav wants to accelerate a body of mass2 kg at 10 m/sec2. On the other hand, Sahil wants to get accelerate a body of mass 5 kg at 2.5m/sec2. Who will need to apply more force?

A. both will apply same force
B. Gaurav
C. Sahil
D. none of these
Answer» C. Sahil
1098.

As we go to the higher altitude the atmospheric pressure _______.

A. increases      
B. remain same
C. decreases                    
D. cannot say
Answer» B. remain same
1099.

When an object is at rest on a surface - what canbe said about the forces on it?

A. they all are equal
B. they are unbalanced
C. there are not acting on it
D. all the forces cancel out
Answer» E.
1100.

A car of mass 1000 kg can produce an acceleration of 8 m/s2.Calculate the force produced by the engine ignoring friction.

A. 10,000 N         
B.          100,000 N
C. 8000 N          
D. 18000N
Answer» D. 18000N