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 2022-2023. 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 2022-2023
| 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
Two boys A (left side) and B (right side) are applying force on a block. If the block moves towards the right, which one of the following statements is correct?
[A]. Magnitude of force applied by A is greater than that of B.
[B]. Magnitude of force applied by A is smaller than that of B.
[C]. Net force on the block is towards A.
[D]. Magnitude of force applied by A is equal to that of B.
Q3
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
Q4
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
Q5
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.
Q6
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
Q7
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.
Q8
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
Q9
The same force “F” acts on four different objects having the areas given below, one by one. In which case the pressure exerted will be the maximum?
[A]. 20 m2
[B]. 50 m2
[C]. 10 m2
[D]. 100 m2
Q10
Consider the following statements and choose the incorrect one:
[A]. The strength of a force is expressed by its magnitude.
[B]. The magnitude of a force is expressed in the SI unit of force called “Newton”.
[C]. An adult man can apply large force on an object whereas a child can apply only a small force on an object.
[D]. None of 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
The magnitude of force is expressed in the unit of force called:
[A]. Pascal
[B]. Kelvin
[C]. Newton
[D]. Magdeburg
Q13
There is a magnetic force of repulsion between the like poles of two magnets. Priya is writing some statements, choose the correct statement and help her:
[A]. The force exerted by a magnet is called magnetic force.
[B]. There is a magnetic force of repulsion between the like poles of two magnets.
[C]. There is a magnetic force of attraction between the unlike poles of two magnets.
[D]. All the above
Q14
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
Q15
Bikash is doing his homework which is given by his teacher. Would you help him to choose the incorrect sentences?
[A]. The pull exerted by objects possessing mass is called gravitational force.
[B]. The force exerted by an electrically charged object is called electrostatic force.
[C]. The drinking straw works on the existence of atmospheric pressure.
[D]. None of the above
Q16
Which of the following is not an effect of force?
[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 composition of a moving object
[D]. A force can change the shape and size of an object
Q17
The force of 150 N is applied to an object of area 3 m2. Calculate the pressure.
[A]. 25 N/m2
[B]. 50 N/m2
[C]. 100 N/m2
[D]. 147 N/m2
Q18
Which of the following scientists gave the idea of the existence of gravitational force?
[A]. Einstein
[B]. James Watt
[C]. Faraday
[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 atmospheric pressure is usually measured in the unit of:
[A]. Newtons per square meter
[B]. Pascal
[C]. Cm of mercury
[D]. Mm of mercury
Q23
In the last year board examination, Rahul were asked a question where he had to choose the statement which was/were correct? Will you be able to answer this question?
[A]. The drinking straw works on the existence of atmospheric pressure.
[B]. The syringe works on the existence of atmospheric pressure.
[C]. A dropper works on the existence of atmospheric pressure.
[D]. All the above
Q24
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
Q25
When we press the rubber sucker on a flat, smooth surface. A rubber sucker stays attached firmly to a flat surface due to:
[A]. Gravity of the earth inside
[B]. Low atmospheric pressure inside
[C]. High atmospheric pressure inside
[D]. High electrostatic force creates inside
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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.
