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WorksheetsForce and pressure
Total questions: 45
Worksheet time: 23mins
1.Which a given force is applied on larger area of contact the pressure exerted by it
(a) Increase
(b) Decrease
(c) Does not change
(d) None of these
A
B
C
D
. How many minimum number of objects are required to interact for a force to come into play?
(a) One
(b) Two
(c) Three
(d) Four
A
B
C
D
.A boat comes to rest if we stop rowing it due to
(a) Gravitation force
(b) Force of friction
(c) Muscular force
(d) None of these
A
B
C
D
12.Pressure Equal
(a) Force/area
(b) Force x area
(c) Area/force
(d) None of these
A
B
C
D
13.Knives, needles, saws are made sharp or pointed to
(a) Decrease pressure
(b) Can't say
(c) Increase pressure
(d) None of these
A
B
C
D
14.The pressure with the height of the liquid column.
(a) Increase
(b) Remains same
(c) Decrease
(d) None of these
A
B
C
D
.Under which condition can a moving object its direction
(a) By reducing friction
(b) By increasing friction
(c) By applying force
(d) By not applying force
A
B
C
D
.The SI unit of force is s
(a) Kilogram
(b) Gram
(c) Newton
(d) None of these
A
B
C
D
A stone thrown with a catapult (Gulal) falls back on the ground because
(a) The muscles apply force
(b) The stone applies force
(c) The earth exerts force
(d) The catapult exerts force
A
B
C
D
1. Which of the following is/are true about force?
(a) Force is a type of pull
(b) Force is a type of Push
(c) Both 'a' and 'b' are true
(d) None of the above is true
A
B
C
D
What is required to represent the complete effect of a force?
(a) Magnitude of force
(b) Direction of force
(c) Both magnitude and direction of force
(d) Either magnitude or direction of force
A
B
C
D
7. The force acting on a unit area of a surface is called....
a. Friction
(b) Pressure
(c) Contact force
(d) Non-contact force
A
B
C
D
8. A rubber sucker when pressed on a smooth surface, it sticks on it because of
(a) Force of friction
(b) Magnetic force
(c) Electrostatic force
(d) Atmospheric Pressure
A
B
C
D
9. Why does porters place a round piece of cloth on their heads when they carry heavy loads?
(a) To decrease the pressure
(b) To increase the pressure
(c) To decrease the force
(d) To increase the force
A
B
C
D
10. When liquids are filled in a container, on which part of the container does liquids exert pressure?
(a) On bottom of the container
Force and Pressure
(b) On walls of the container
(c) On both i.e. bottom and walls of the container
(d) Liquids do not exert pressure
A
B
C
D
1
2
3
4
What is the working principle of an air sucker (vacuum pump)?
A) It works by compressing air to create a vacuum
B) It creates a vacuum by forcing air into a closed chamber
C) It generates a low-pressure area by removing air from a chamber
D) It cools the air and creates a vacuum by condensation
A
B
C
D
1
2
3
4
1
2
3
4
What is the net force acting on an object if two people push it in the same direction with forces of 5 N and 7 N?
A. 0 N
B. 2 N
C. 12 N
D. 35 N
A
B
C
D
10 N force pulls an object to the right, and a 4 N force pulls it to the left. What is the net force?
A. 6 N left
B. 14 N right
C. 6 N right
D. 4 N left
A
B
C
D
Q3. If the net force on a moving object is zero, what will happen?
A. It will speed up
B. It will slow down
C. It will stop immediately
D. It will continue at a constant velocity
A
B
C
D
. Which of the following situations represents a net force of zero?
A. A ball falling freely
B. A book sliding down a tilted surface
C. A car stopped on a flat road
D. A rocket launching upward
A
B
C
D
Two containers contain water, one filled to a depth of 5 meters and the other to 10 meters. What is the pressure at the bottom of each container (assuming the same liquid)?
A. The pressure is the same for both
B. The pressure at 5 meters is more
C. The pressure at 10 meters is twice that at 5 meters
D. The pressure at 5 meters is greater
A
B
C
D
If two containers are filled with the same liquid to the same depth, what is the pressure at the bottom?
A. It depends on the shape of the container
B. It is greater in a wider container
C. It is the same for both containers
D. It is greater in a taller container
A
B
C
D
In a liquid, the pressure at a point:
A. Is the same at all points at the same depth
B. Is greatest at the surface
C. Increases as you move closer to the surface
D. Decreases with depth if the liquid is compressible
A
B
C
D
. The pressure at the bottom of a swimming pool is due
to:
A. Only the weight of the water
B. Only the atmospheric pressure
C. The combined effect of the weight of the water and
atmospheric pressure
D. Only the depth of the water
A
B
C
D
. In an air sucker system, what happens when the air pressure inside the chamber becomes lower than atmospheric pressure?
A) Air enters the chamber due to the pressure difference
B) Air is expelled out of the chamber
C) The system shuts off to avoid damage
D) No change occurs
A
B
C
D
The main function of an air sucker in industrial applications is to:
A) Cool air in a closed environment
B) Remove excess air and create a vacuum for suction
C) Filter impurities from the air
D) Compress air for storage
A
B
C
D
Which of the following factors determines the net force on an object?
a) The object's shape
b) The object's velocity
c) The sum of all external forces acting on the object
d) The object's mass only
A
B
C
D
. A sharp knife cuts vegetables more easily than a blunt one because:
a) Sharp knife is lighter
b) Sharp knife reduces pressure
c) Sharp knife increases pressure
d) Sharp knife applies more force
A
B
C
D
Why are camels able to walk easily on sand?
a) They are very light in weight
b) Their feet are broad, reducing pressure
c) They exert more force on sand
d) Their legs are long
A
B
C
D
Why are foundations of buildings made wider?
a) To increase pressure
b) To reduce pressure on ground
c) To make building strong by weight
d) None of these
A
B
C
D
Deep sea divers wear special suits because:
a) To keep them warm
b) To look good
c) To withstand high water pressure
d) To swim fast
A
B
C
D
The walls of a dam are made thick at the bottom because:
a) More force is required to stop water
b) Water pressure is more at the bottom
c) Water pressure is less at the bottom
d) Both (a) and (b)
A
B
C
D
Broad strips are used in tractors instead of normal tyres because:
a) They make tractors look strong
b) They reduce pressure on soil
c) They increase speed
d) They increase pressure on soil
A
B
C
D
A sharp knife cuts vegetables more easily than a blunt one because:
a) Sharp knife is lighter
b) Sharp knife reduces pressure
c) Sharp knife increases pressure
d) Sharp knife applies more force
A
B
C
D
The pressure exerted by a liquid depends on:
a) Mass of the liquid
b) Depth of the liquid
c) Shape of the vessel
d) Color of the liquid
A
B
C
D
Why do elephants not sink into soft soil while goats sometimes do?
a) Elephants are lighter
b) Elephants have bigger feet → less
pressure
c) Goats have stronger legs → more pressure
A
B
C
Matching
(a → ii), (b → i), (c → iv), (d → iii)
a → i), (b → ii), (c → iv), (d → iii)
a → iii), (b → i), (c → iv), (d → ii)
a → ii), (b → i), (c → iiii), (d → iv)
Assertion (A): Nails have pointed ends.
Reason (R): Pressure increases when force acts on small area.
a) Both A and R are true, and R is the correct explanation of A
b) Both A and R are true, but R is not the correct explanation of A
c) A is true, R is false
d) A is false, R is true
A
B
C
D
Assertion (A): The pressure exerted by liquids is the same at all depths. Reason (R): Pressure depends only on the weight of liquid, not on depth.
a) Both A and R are true, and R is the correct explanation of A
b) Both A and R are true, but R is not the correct explanation of A
c) A is true, R is false
d) A is false, R is true
A
B
C
D
Assertion (A): In tug of war, sometimes the rope doesn't seem to move even if strong forces are applied from both sides. Reason (R): Equal forces applied from opposite sides on any object make the net applied force zero.
A) Both assertion and reason are true and reason is the correct explanation of assertion.
B) Both assertion and reason are true but reason is not the correct explanation of assertion.
C) Assertion is true but reason is false.
D) Assertion is false but reason is true.
A
B
C
D
2.
Assertion (A): Friction always opposes the motion of an object.
Reason (R): Whenever one surface moves or tries to move over another, the force of friction acts on the surfaces.
A) Both assertion and reason are true and reason is the correct explanation of assertion.
B) Both assertion and reason are true but reason is not the correct explanation of assertion.
C) Assertion is true but reason is false.
D) Assertion is false but reason is true.
A
B
C
D
Assertion (A): Force cannot be added to pressure.
Reason (R): Force and pressure are different physical quantities.
A) Both assertion and reason are true and reason is the correct explanation of assertion.
B) Both assertion and reason are true but reason is not the correct explanation of assertion.
C) Assertion is true but reason is false.
D) Assertion is false but reason is true.
A
B
C
D
