Force And Pressure Mock Tests

24 questions available

Force And Pressure Mock Test 1

Questions: 24

Sample Questions

Class 8 Science

Which of the following is the SI unit of pressure?

A Newton

B Pascal

C Joule

D Watt

Class 8 Science

A school bag has wide straps instead of thin strings because wide straps:

A Look more attractive

B Increase the area of contact, reducing pressure on the shoulders

C Decrease the weight of the bag

D Make the bag easier to carry over long distances only

Class 8 Science

Which type of force is required to change the direction of a moving ball?

A No force

B A force opposite to motion

C A force perpendicular to motion

D A force in the direction of motion

Class 8 Science

Which of the following forces acts without physical contact?

A Frictional force

B Normal force

C Gravitational force

D Tension force

Class 8 Science

Dams are built with thicker walls at the bottom because:

A Water pressure increases with depth

B The bottom needs more decoration

C Gravity is stronger at the bottom

D Water becomes denser at the bottom

DSC Science

Which of the following is an advantage of friction?

A It causes wear and tear of machinery

B It helps us walk without slipping

C It produces heat that wastes energy

D It reduces the speed of moving objects

Class 8 Science

A force of 20 N acts on a body of mass 4 kg. What is the acceleration produced?

A 5 m/s²

B 80 m/s²

C 16 m/s²

D 24 m/s²

Class 8 Science

Which of the following forces acts between the Earth and the Moon without physical contact?

A Frictional force

B Gravitational force

C Magnetic force

D Electrostatic force

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