Selina solutions

Selina solutions

Grade 8

Force and Pressure | Objective Questions

Question 1

Q1) Write true or false for each statement (a) The S.I unit of force is kg.

(b) A force always produces both the linear and turning motions.

(c) Moment of force = force perpendicular distance of force.

(d) Less force is needed when applied at a farther distance from the pivoted point.

(e) For a given thrust,pressure is more on a surface of large area.

(f) The pressure on a surface increases with an increase in the thrust on the surface.

(g) A man exerts same pressure on the ground whether he is standing or he is lying.

(h) It is easier to hammer a blunt nail into a piece of wood than a sharply pointed nail.

(i) The S.I unit of pressure is pascal.

(j) Water in a lake exerts pressure only at its bottom.

(k) A liquid exerts pressure in all directions.

(l) Gases exert pressure in all directions.

(m) The atmospheric pressure is nearly 105 pa.

(n) Higher we go, greater is the air pressure

Solution:

(a) False

(b) False

(c) True

(d) True

(e) False

(f) True

(g) False

(h) False

(i) True

(j) False

(k) True

(l) True

(m) True

(n) False

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your physics exam ?

Learn from an expert tutor.

Book a free class now
subject-cta

Question 1

Q1) Write true or false for each statement (a) The S.I unit of force is kg.

(b) A force always produces both the linear and turning motions.

(c) Moment of force = force perpendicular distance of force.

(d) Less force is needed when applied at a farther distance from the pivoted point.

(e) For a given thrust,pressure is more on a surface of large area.

(f) The pressure on a surface increases with an increase in the thrust on the surface.

(g) A man exerts same pressure on the ground whether he is standing or he is lying.

(h) It is easier to hammer a blunt nail into a piece of wood than a sharply pointed nail.

(i) The S.I unit of pressure is pascal.

(j) Water in a lake exerts pressure only at its bottom.

(k) A liquid exerts pressure in all directions.

(l) Gases exert pressure in all directions.

(m) The atmospheric pressure is nearly 105 pa.

(n) Higher we go, greater is the air pressure

Solution:

(a) False

(b) False

(c) True

(d) True

(e) False

(f) True

(g) False

(h) False

(i) True

(j) False

(k) True

(l) True

(m) True

(n) False

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your physics exam ?

Learn from an expert tutor.

Book a free class now
subject-cta
linkedin instgram facebook youtube
2020 © Quality Tutorials Pvt Ltd All rights reserved
linkedin instgram facebook youtube