# Class 8 Science Chapter 11 MCQ

Class 8 Science Chapter 11 MCQ (Multiple Choice Questions) of Force and Pressure for CBSE and State boards like UP board, MP board and other board who are following NCERT books for session 2021-2022.

All the questions are taken from latest NCERT books issued for new academic session. Practice with these questions to clear all of your doubts and to be confident in exams. Class 8 science chapter 11 MCQs covers the entire chapter and all the topics with suitable answers and explanation.

## Class 8 Science Chapter 11 MCQ for 2021-2022

 Class: 8 Science Chapter: 11 Force and Pressure Contents: MCQ Online Test with answers

### MCQ Tests with Answers for Class 8 Science Chapter 11

Q1

#### Which of the following is not an example of muscular force?

[A]. A porter carrying a load on a wheel-barrow.
[B]. An apple falling from a tree.
[C]. A child riding a bicycle.
[D]. A person drawing water from a well.
Q2

#### In the electric bell circuit, when the circuit is completed, the hammer strikes the gong. Which of the following force is responsible for the movement of hammer?

[A]. Gravitational force alone
[B]. Electrostatic force alone
[C]. Magnetic force alone
[D]. Frictional force alone
Q3

#### When we press the bulb of a dropper with its nozzle kept in water air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is due to:

[A]. Pressure of water
[B]. Gravity of the earth
[C]. Shape of rubber bulb
[D]. Atmospheric pressure
Q4

#### During dry weather, while combing hair, sometimes we experience hair flying apart. The force responsible for this is:

[A]. Force of gravity.
[B]. Electrostatic force.
[C]. Force of friction.
[D]. Magnetic force.
Q5

#### Two objects repel each other. This repulsion could be due to:

[A]. Frictional force only
[B]. Electrostatic force only
[C]. Magnetic force only
[D]. Either a magnetic or an electrostatic force

Q6

#### Which one of the following forces is a contact force?

[A]. Force of gravity
[B]. Force of friction
[C]. Magnetic force
[D]. Electrostatic force
Q7

#### If we release a magnet held in our hand, it falls to the ground. The force responsible for this is:

[A]. Muscular force
[B]. Magnetic force
[C]. Electrostatic force
[D]. Gravitational force
Q8

#### A brick is kept in three different ways with the help of V, L, O shapes on a table. The pressure exerted by the brick on the table will be

[A]. Maximum in position V
[B]. Maximum in position O
[C]. Maximum in position L
[D]. Equal in all cases.
Q9

#### Which of the following force is utilized in reducing air pollution by removing dust, soot and fly-ash particles from the smoke coming out of chimneys of factories?

[A]. Magnetic force
[B]. Gravitational force
[C]. Electrostatic force
[D]. Frictional force
Q10

#### Which of the following statement is or are incorrect?

[A]. A push or pull on an object is called force.
[B]. When we push the door to open it, then we apply a force on the door in certain direction.
[C]. An interaction of an object with another object results in a force between the two objects.
[D]. All the above

Q11

#### Which of the following represent correct values for the normal atmospheric pressure?

[A]. 101.3 kilopascals and 76 mm of mercury
[B]. 76 mm of mercury and 101.3 pascals
[C]. 101.3 kilopascals and 76 cm of mercury
[D]. 76 mm of mercury and 76 cm of mercury
Q12

#### A force can produce many effects. Choose the correct statements:

[A]. A force can change the speed of a moving object.
[B]. A force can change the direction of a moving object.
[C]. A force can change the shape and size of an object.
[D]. All the above
Q13

#### Which of the following does not work on the existence of atmospheric pressure?

[A]. Rise of iodine solution in the glass tube of dropper
[B]. Rise of cold drink in a long plastic straw
[C]. Sticking of suction hook on the wall of a room
[D]. Rise of mercury in glass tube of thermometer
Q14

#### Read the following sentences carefully, and choose the incorrect one:

[A]. The force exerted by the muscles of the body is called muscular force.
[B]. The force which always opposes the motion of one body is called friction force.
[C]. A force which can be exerted by an object on another object on this through physical touching is called contact forces.
[D]. All the above
Q15

#### Which of the following change appreciably when a batsman hits a moving cricket ball?

[A]. Shape and Direction
[B]. Direction and Size
[C]. Shape and Size
[D]. Direction and Speed

Q16

#### Payal is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Payel wants to take help from you:

[A]. Pressure is produced when a force acts on an object.
[B]. The force with which the earth pulls the objects towards it, is called the force of gravity.
[C]. The gravitational force between the sun and the earth which holds the earth in its orbit around the sun.
[D]. None of the above.
Q17

#### Which of the following is not a non-contact force?

[A]. Electrostatic force
[B]. Gravitational force
[C]. Frictional force
[D]. Magnetic force
Q18

[A]. Einstein
[B]. James Watt
[D]. Newton
Q19

#### Some mustard oil is kept in a beaker. It will exert pressure:

[A]. Downwards only
[B]. Sideways only
[C]. Upwards only
[D]. In all directions
Q20

#### In a science quiz competition, Payel is asked a question where she had to choose the statement which was/were incorrect?

[A]. The greater the depth of a point in a liquid, the greater is the pressure.
[B]. A liquid exerts pressure on the walls of its container.
[C]. The atmospheric pressure is maximum at the high mountain.
[D]. None of the above.

Q21

#### A blunt knife does not cut an object easily because:

[A]. Thicker edge produces lesser pressure.
[B]. The thicker edge does not transfer the force.
[C]. It can be used to cut the butter
[D]. The weight of knife controlled by object
Q22

#### The magnitude of atmospheric pressure is equal to the pressure exerted by a:

[A]. 76 mm tall column of mercury
[B]. 760 mm tall column of alcohol
[C]. 76 cm tall column of mercury
[D]. 760 cm tall column of mercury
Q23

#### A school bag has wide strap made of thick cloth so that:

[A]. [A] The weight of bag creates less pressure.
[B]. The weight of bag easily transfers the shoulder.
[C]. The shape of bag can hold more books.
[D]. The weight of bag controlled by air pressure and blood pressure.
Q24

#### The atmospheric pressure is usually measured in the unit of:

[A]. Newtons per square meter
[B]. Pascal
[C]. Cm of mercury
[D]. Mm of mercury
Q25

#### When a force of 5 N acts on a surface, it produces a pressure of 500 Pa. The area of surface then must be

[A]. 10 cm2
[B]. 50 cm2
[C]. 100 cm2
[D]. 0.01 cm 2

###### How to prepare chapter 11 of Class 8 Science?

Just read the complete chapter from NCERT Textbook and go through the exercise questions answers given at the end of the chapter of NCERT book. Now work on important questions and MCQ questions to learn thoroughly the entire chapter 11 of class 8 Science.