Force and Pressure
Class 8 - Science
(Worksheet)
1. Muscular force is an example of _______ force.
2. Oil is applied to machines to reduce _______ force.
3. S.I unit of pressure is ____________.
4. S.I. unit of force is _____________.
5. If the area of contact is increased, then pressure ______ _.
6. Pressure in solid depends upon ________________ and ____________.
7. Pressure in liquids depends upon _____________ and ______________.
8. The cutting edge of cutting instruments is sharpened because, by _______ the area of cross-section, the _______ increases.
9. Muscular forces can be exerted only through _________.
10. A stone falling from the roof of a house is an example of _______ force.
11. The force exerted by a charged body on other charged body is known as _________ force.
12. Force is a _____ or a ____.
13. Force can change the _______ of motion of an object.
14. A spring balance is used to measure ______ _.
15. _______ force always opposes the motion of the body.
16. A force arises due to __________ between two objects.
17. The pressure exerted by air around us is known as __________.
18. If the two forces act in the opposite direction on an object, the net force acting on it is the ______ between the two forces.
19. The north pole of a magnet _______ the north pole of another magnet.
20. In a tug-o-war, two teams pulling a rope does not move towards any team, it implies that net force is ________.
☛See also:
Ch 11 - Force and Pressure (Q & A)
Ch11 - Force and Pressure (MCQs)
Ch 11 - Force (What is Inertia?)
Ch 11 - Force and Pressure (Assignment Sheet)
Ch 11 - Force and Pressure (Worksheet)
Answers:
1: contact
2: Friction
3: N/m² or Pascal
4: Newton (N)
5: decreases
6: force, area
7: density, height(depth)
8: reducing, pressure
9: contact
10: gravitational
11: electrostatic
12: push, pull
13: state
14: weight
15: Friction
16: interaction
17: atmospheric pressure
18: difference
19: repels
20: zero
No comments:
Post a Comment
We love to hear your thoughts about this post!
Note: only a member of this blog may post a comment.