Force And Pressure Mock Tests

24 questions available

Force And Pressure Mock Test 1

Questions: 24

Sample Questions

DSC Science

Why does atmospheric pressure decrease as we go higher above sea level?

A The temperature increases with altitude, reducing pressure

B The Earth's gravity becomes weaker at higher altitudes

C The density of air decreases because most of the atmosphere's mass is concentrated near the Earth's surface

D The amount of oxygen in the air decreases at higher altitudes

Class 8 Science

Which type of friction is the weakest?

A Static friction

B Sliding friction

C Rolling friction

D Fluid friction

Class 8 Science

What is the SI unit of force?

A Joule

B Newton

C Pascal

D Watt

Class 8 Science

Force is a _______ quantity.

A Scalar

B Vector

C Both scalar and vector

D Neither scalar nor vector

Class 8 Science

Which type of friction is the strongest?

A Rolling friction

B Sliding friction

C Static friction

D Fluid friction

Class 8 Science

Which of the following is the SI unit of pressure?

A Newton

B Pascal

C Joule

D Watt

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

When a force of 10 N acts on an object and moves it through a distance of 2 m, the work done is:

A 2 J

B 5 J

C 20 J

D 12 J

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