Tamil Nadu (English Medium) Std 8 Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1
Pascal is the unit of :

(A) Force	(B) Area
(C) Pressure	(D) Density

Question-2
The pressure exerted by the liquid at its bottom depends on :

(A) Area of the column	(B) Height of the column
(C) Volume of the column	(D) All of these

Question-3
The force acting on a unit area is called :

(A) Pressure	(B) Thrust
(C) Tension	(D) Normal

Question-4
From the following which one is not a unit of force?

(A) Newton	(B) Dyne
(C) kg m/s²	(D) Pascal

Question-5
From the following which one is used to reduce friction?

(A) Water	(B) Sand
(C) Grease	(D) Gravel

Question-6
Friction is what type of force?

(A) contact force	(B) Non-contact force
(C) Both 1 and 2	(D) Neither 1 and 2

Question-7
Who invented the Barometer?

(A) Torricelli	(B) Pascal
(C) Faraday	(D) Newton

Question-8
What would be the pressure exerted by a liquid column of height 15 cm on its bottom? g = 10 m/s², d = 800 kg/m³?

(A) 1000 Pa	(B) 1200 Pascal
(C) 12 pascal	(D) 10 Pa

Question-9
A surface of area 15 m² exerts a pressure of 2 pa. Find the force applied?

(A) 15 N	(B) 10 N
(C) 30 N	(D) 35 N

Question-10
What will we need to move an object?

(A) Force	(B) Pressure
(C) Energy	(D) Strength

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Std 8

Tamil Nadu (English Medium)

Practice in Related Chapters
Measurements
Force and Pressure
Electricity and Heat
Light and Sound