Q.1 Force is a kind of –
(a) Push
(b) Pull
(c) Push as well as pull
(d) Non of these
Q.2 When the force is applied on an object, it can change-
(a) Shape
(b) State of motion
(c) Direction
(d) All of these
Q.3 What is the S.I. Unit of force?
(a) Dyne
(b) Newton
(c) Pascal
(d) Joule
Q.4 Which of following is a contact force?
(a) Muscular force
(b) Gravitational force
(c) Electrostatic force
(d) Magnetic force
Q.5 When a magnet is brought near a magnetic compass, its needle shows deflection due to-
(a) Gravitational force
(b) Frictional force
(c) Electrostatic force
(d) Magnetic force
Q.6 A plastic scale is rubbed with a woolen cloth. When it is immediately brought near bits of paper, the bits of paper are attracted towards it. This is due to-
(a) Electrostatic force
(b) Magnetic force
(c) Gravitational force
(d) Frictional force
Q.7 The force acting on a unit area of a surface is called as-
(a) Pressure
(b) Force
(c) Friction
(d) Gravity
Q.8 The S.I. Unit of pressure is-
(a) Dyne
(b) Pascal
(c) Newton
(d) Watt
Q.9 Which of the following exert the pressure?
(a) Solids
(b) Liquids
(c) Gases
(d)All of the above
Q.10 The pressure of liquid increases with
(a) Increasing the volume of container
(b) Increasing height of liquid
(c) Increasing the base of water container
(d) Any one of the above
Q.11 Atmospheric pressure will be minimum at –
(a) Sea level
(b) Very high altitude like 8000 feet
(c) Above 1000 feet
(d) All of these
Q.12 Atmospheric pressure will be maximum at-
(a) above 5000 feet
(b) above 3000 feet
(c) above 2000 feet
(d) Sea level
Q.13 Look at the three bricks in three different positions kept on a table. In which brick number the pressure will be maximum?
(a) 1
(b) 2
(c) 3
(d)Equal in all the three positions
Q.14 At the four points A, B, C and D there are taps in this water container. Which tap will have least pressure?
(a) A
(b) B
(c) C
(d) D
Q.15 In question number 14, which two points the pressure of water will be equal?
(a) A & B
(b) A & C
(c) B & C
(d) B & D
Q.16 Two boys are applying forces from opposite side on a box. If box moves in left direction, which of the following statement is correct?
(a) Magnitude of F1 is greater than F2
(b) Magnitude of F2 is greater than F1
(c) Magnitude of F1 and F2 are equal
(d) Resultant net force in direction of F1
ANSWERS-
1.(c) Push as well as pull
2.(d) All of these
3.(b) Newton (N)
4.(a) Muscular force
5.(d) Magnetic force
6.(a) Electrostatic force
7.(a) Pressure
8.(b) Pascal (Pa)
9.(d)All of the above
10.(b) Increasing height of liquid
11.(b) Very high altitude like 8000 feet
12.(d) Sea level
13.(b) 2
14.(a) A
15.(c) B & C
16.(b) Magnitude of F2 is greater than F1