Force & Pressure Test

Result

Force & Pressure Test - 2

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

A stone of mass 4 kg is dropped from a height. Find the force exerted by it on ground if acceleration due to gravity is 10 m/s².

A
20 N

B
2.5 N

C
40 N

D
0.4 N

Solution

Since, F = ma = 4×10 = 40N
Question 2
1 / -0

Directions: Match Column-I with Column-II and select the correct answer using the codes given below the columns.
Column I Column II
A. Thrust (p) F/A
B. Pressure (q) Force
C. Atmospheric pressure (r) Decrease with altitude
D. liquid pressure (s) Monometer

A
A→(q); B→(p); C→(r); D→(s)

B
A→(r); B→(p); C→(q); D→(s)

C
A→(p); B→(r); C→(s); D→(q)

D
A→(s); B→(q); C→(p); D→(r)

Solution

Column I Column II
A. Thrust (q) Force
B. Pressure (p) F/A
C. Atmospheric pressure (r) Decrease with altitude
D. liquid pressure (s) Monometer
Question 3
1 / -0

Direction: The questions in this segment consist of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reasons R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below.
Assertion: Sea divers wear special suits.
Reason: There is no effect of gravity under the sea.

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 but R is false.

D
A is false but R is true.

Solution

A is true but R is false.
Question 4
1 / -0

DIRECTIONS: Read the passage given below and answer the questions that follow. Passage Liquid pressure in a container doesn't depend on the shape of the container but it any depends on the height of the liquid column. The pressure due to a liquid at a point at a depth h from the surface of the liquid is given by P = ρgh where, ρ is the density of the liquid and g is the acceleration due to gravity. A cylindrical container is full of water. The pressure at the bottom is P. Now, the water is replaced by cooking oil of density twice the density of water. If half of the water is taken out, what is the pressure at the bottom?

A
P

B
1/2 P

C
3/2 P

D
2 P

Solution

P = ρgh
\(P^{\prime}=\rho g\left(\frac{h}{2}\right) \Rightarrow P^{\prime}=\frac{1}{2} P\)
Question 5
1 / -0

Force is a

A
push

B
pull

C
both (a) and (b)

D
none of these

Solution

A force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects.
Question 6
1 / -0

A force of 12 N is acting perpendicular on a wooden block. What will be the thrust on it?

A
12 N

B
24 N

C
48 N

D
6 N

Solution

Since, Thrust = force acting perpendicular = 12N
Question 7
1 / -0

Direction: The questions in this segment consist of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reasons R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below.
Assertion: Steel nails are pointed at one end to have least area of contact with surface.
Reason: Least area exerts high pressure.

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 but R is false.

D
A is false but R is true.

Solution

As pressure \(=\frac{\text { Force }}{\text { area }}\)
Question 8
1 / -0

A stone falling from the roof of a house due to

A
gravitational force

B
magnetic force

C
frictional force

D
electrostatic force

Solution

A stone falling from the roof of a house due to gravitational force.
Question 9
1 / -0

How much pressure will be applied on a body. If a force of 4 N is applied on its unit surface area. [Hint: Area = 1 m²]

A
0.25 Pa

B
2 Pa

C
8 Pa

D
4 Pa

Solution

Since, pressure \(=\frac{\text { Force }}{\text { Area }}\)
\(P=\frac{4}{1}=4 P_{a}\)
Question 10
1 / -0

The CGS unit of force is

A
newton

B
pascal

C
dyne

D
None of these

Solution

S.I. unit of thrust is N.
C.G.S unit of force is dyne.
We know that 1N = 10⁵ dyne
Thus ratio of S.I unit of thrust to C.G.S unit of force \(=\frac{1 \mathrm{N}}{1 \mathrm{dyne}}=\frac{10^{5} \mathrm{dyne}}{1 \mathrm{dyne}}=10\)
Question 11
1 / -0

Direction: The questions in this segment consist of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reasons R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below.
Assertion: Apple falls on the ground, due to gravitational force.
Reason: Gravitational force is a contact force.

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 but R is false.

D
A is false but R is true.

Solution

A is true but R is false.
Question 12
1 / -0

Which instrument is used for measuring at mospheric pressure?

A
Hygrometer

B
Barometer

C
Hydrometer

D
Sphygmomanometer

Solution

A barometer is normally used to measure atmospheric pressure. A barometer is a thin glass tube that is put upside down in liquid mercury.
Question 13
1 / -0

Direction: The questions in this segment consist of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reasons R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below.
Assertion: When a stone is thrown vertically upward, after getting a certain height' it comes back to the earth.
Reason: Stone has to work against the force of friction of air.

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 but R is false.

D
A is false but R is true.

Solution

Both A and R are true but R is not the correct explanation of A.
Question 14
1 / -0

When a force of 10 N is applied on a body it starts moving with a constant acceleration of 2m/s². The mass of the body is

A
2 kg

B
0.2 kg

C
20 kg

D
5 kg

Solution

Since \(F=m a\)
\(\Rightarrow m=\frac{F}{a}\) \(=\frac{10}{2}\)
\(=5 k g\)
Question 15
1 / -0

The SI unit of force is

A
newton

B
dyne

C
pascal

D
none of these

Solution

Internationally, many prefer to use a single system called SI unit for measuring force. The SI unit recognized for measurement of force is Newton.
Question 16
1 / -0

Direction: The questions in this segment consist of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reasons R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below.
Assertion: A moving toy car stops after a little distance.
Reason: Friction opposes the motion.

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 but R is false.

D
A is false but R is true.

Solution

Both A and R are true and R is the correct explanation of A.
Question 17
1 / -0

Direction: The questions in this segment consist of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reasons R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below.
Assertion: There is high atmospheric pressure in the space.
Reason: Astronauts wear special suits.

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 but R is false.

D
A is false but R is true.

Solution

A is false but R is true.
Question 18
1 / -0

As we go to the higher altitude the atmospheric pressure _______.

A
increases

B
remain same

C
decreases

D
cannot say

Solution

As we go to the higher altitude the atmospheric pressure increases.
Question 19
1 / -0

Direction: The questions in this segment consist of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reasons R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below.
Assertion: Magnetic force is a non-contact force.
Reason: Unlike poles of magnet attracts each other.

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 but R is false.

D
A is false but R is true.

Solution

Both A and R are true but R is not the correct explanation of A.
Question 20
1 / -0

1 newton = _______ dynes.

A
10³

B
10⁴

C
10⁵

D
10⁶

Solution

Newton is the SI unit of force and dyne is the CGS unit of force.
1 N = 10⁵ dyne
Question 21
1 / -0

Electrostatic force is a

A
contact force

B
non-contact force

C
balanced force

D
unbalanced force

Solution

The electrostatic force is an attractive and repulsive force between particles are caused due to their electric charges. The electric force between stationary charged body is conventionally known as the electrostatic force. It is also referred to as Columb’s force.
Question 22
1 / -0

DIRECTIONS: Read the following two statements carefully and choose the correct options.
Statement-1: Atmospheric pressure increases with increase in depth of sea.
Statement-2: Pressure is directly proportional to depth/height.

A
Statement (1) is correct while statement (2) is incorrect.

B
Statement (2) is correct while statement (1) is incorrect.

C
Both statements are correct.

D
Both statements are incorrect.

Solution

Both statements are correct.
Statement-1: Atmospheric pressure increases with increase in depth of sea.
Statement-2: Pressure is directly proportional to depth/height.
Question 23
1 / -0

Two stones A and B of masses 2 kg and 5 kg respectively are released from same height in vacuum. Which will reach on the ground first?

A
Stone A

B
Stone B

C
Both will reach at same time

D
None of these

Solution

Both will reach at same time.
Question 24
1 / -0

When a cricketer catches the ball by his hands the force/forces coming in action is/are

A
non-contact force

B
gravitational force

C
frictional force

D
both (b) and (c)

Solution

When a cricketer catches the ball by his hands the force/forces coming in action are gravitational force and frictional force.
Question 25
1 / -0

Force has

A
only direction

B
only magnitude

C
both magnitude and direction

D
neither magnitude nor direction

Solution

Force is an external agent capable of changing the state of rest or motion of a particular body. It has a magnitude and a direction.
Question 26
1 / -0

A mass of 2 kg is accelerated at 2 m/sec2. Find the force applied on it.

A
4N

B
N

C
8N

D
N

Solution

Since, F = ma
F = 2×2 = 4N
Question 27
1 / -0

Pressure is the ratio of force to the ____over which it is applied.

A
surface

B
volume

C
distance

D
area

Solution

Pressure is defined as the physical force exerted on an object. The force applied is perpendicular to the surface of objects per unit area.
Question 28
1 / -0

DIRECTIONS: Read the passage given below and answer the questions that follow. Passage Liquid pressure in a container doesn't depend on the shape of the container but it any depends on the height of the liquid column. The pressure due to a liquid at a point at a depth h from the surface of the liquid is given by P = ρgh where, ρ is the density of the liquid and g is the acceleration due to gravity. A cylindrical container is full of water. The pressure at the bottom is P. Now, the water is replaced by cooking oil of density twice the density of water. The new pressure at the bottom is

A
4 P

B
2 P

C
1.5 P

D
3 P

Solution

P = ρgh
P′ = 2ρgh ⇒ P′ = 2P
Question 29
1 / -0

Direction: The questions in this segment consist of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reasons R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below.
Assertion: Fluid exerts pressure on the walls of container.
Reason: Fluids have definite shape and size.

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 but R is false.

D
A is false but R is true.

Solution

A is true but R is false.
Question 30
1 / -0

Which point have more pressure in the container?

A
point A

B
point B

C
point C

D
point D

Solution

As pressure is directly proportional to the depth of the liquid column.
Question 31
1 / -0

Which of the following is an example of contact force?

A
Magnetic force

B
Gravitational force

C
Electric force

D
Muscular force

Solution

Muscular force is called contact force because muscles are in direct contact with the object on which force is applied while applying force.
Question 32
1 / -0

Directions: Match Column-I with Column-II and select the correct answer using the codes given below the columns.
Column I Column II
A. Force (p) unit of force
B. Contact force (q) magnetic force
C. Non-contact force (r) frictional force
D. Newton (s) mass×acceleration

A
A→(q); B→(p); C→(r); D→(s)

B
A→(r); B→(p); C→(q); D→(s)

C
A→(p); B→(r); C→(s); D→(q)

D
A→(s); B→(r); C→(q); D→(p)

Solution

Column I Column II
A. Force (s) mass×acceleration
B. Contact force (r) frictional force
C. Non-contact force (q) magnetic force
D. Newton (p) unit of force
Question 33
1 / -0

Pascal is equal to:

A
N/m²

B
N/m×s

C
N/cm²

D
N.m²

Solution

Pascal is the SI unit of pressure and it can be simplified as:
1 Pa = 1 N/m²
Question 34
1 / -0

Wooden block will

A
move in the direction of force A

B
move in the direction of force B

C
not move

D
None of these

Solution

Wooden block will not move.
Question 35
1 / -0

Pressure is directly proportional to

A
density

B
height/depth

C
acceleration due to gravity

D
all of these

Solution

Pressure is directly proportional to density, height/depth and acceleration due to gravity.
Question 36
1 / -0

Directions: Match Column-I with Column-II and select the correct answer using the codes given below the columns.
Column I Column II
A. Acceleration (p) Contact force
B. Pressure (q) No atmospheric pressure
C. Space (r) Force/mass
D. Muscular force (s) Barometer

A
A→(q); B→(p); C→(r); D→(s)

B
A→(r); B→(s); C→(q); D→(p)

C
A→(p); B→(r); C→(s); D→(q)

D
A→(s); B→(r); C→(q); D→(p)

Solution

Column I Column II
A. Acceleration (r) Force/mass
B. Pressure (s) Barometer
C. Space (q) No atmospheric pressure
D. Muscular force (p) Contact force
Question 37
1 / -0

DIRECTIONS: Read the following two statements carefully and choose the correct options.
Statement-1: When one body moves or tries to move on the surface of another body, its speed continuously decreases.
Statement-2: Friction is a contact force.

A
Statement (1) is correct while statement (2) is incorrect.

B
Statement (2) is correct while statement (1) is incorrect.

C
Both statements are correct.

D
Both statements are incorrect.

Solution

Both statements are correct.
Statement-1: When one body moves or tries to move on the surface of another body, its speed continuously decreases.
Statement-2: Friction is a contact force.
Question 38
1 / -0

Force per unit area is _______.

A
thrust

B
pressure

C
buoyancy

D
density

Solution

Force per unit area is pressure.
Question 39
1 / -0

A fluid is a substance that

A
has no definite shape

B
has no definite volume and shape

C
has no definite volume

D
is a liquid

Solution

A fluid is a substance that has no definite volume and shape.
Question 40
1 / -0

DIRECTIONS: Read the passage given below and answer the questions that follow. Passage Liquid pressure in a container doesn't depend on the shape of the container but it any depends on the height of the liquid column. The pressure due to a liquid at a point at a depth h from the surface of the liquid is given by P = ρgh where, ρ is the density of the liquid and g is the acceleration due to gravity. A cylindrical container is full of water. The pressure at the bottom is P. Now, the water is replaced by cooking oil of density twice the density of water. If the container is carried on a mountain then what will be the pressure at the bottom?

A
less than P

B
more than P

C
equal to P

D
None of these

Solution

When the container is carried on amount a in, g decreases. Hence, new pressure will be less than P.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Column I	Column II
A. Thrust	(p) F/A
B. Pressure	(q) Force
C. Atmospheric pressure	(r) Decrease with altitude
D. liquid pressure	(s) Monometer

Column I	Column II
A. Force	(p) unit of force
B. Contact force	(q) magnetic force
C. Non-contact force	(r) frictional force
D. Newton	(s) mass×acceleration

Column I	Column II
A. Acceleration	(p) Contact force
B. Pressure	(q) No atmospheric pressure
C. Space	(r) Force/mass
D. Muscular force	(s) Barometer

Force & Pressure Test - 2

Result

Force & Pressure Test - 2

Score

-

Rank

-

SHARING IS CARING

Question 1

20 N

2.5 N

40 N

0.4 N

Solution

Question 2

A→(q); B→(p); C→(r); D→(s)

A→(r); B→(p); C→(q); D→(s)

A→(p); B→(r); C→(s); D→(q)

A→(s); B→(q); C→(p); D→(r)

Solution

Question 3

Both A and R are true and R is the correct explanation of A.

Both A and R are true but R is not the correct explanation of A.

A is true but R is false.

A is false but R is true.

Solution

Question 4

P

1/2 P

3/2 P

2 P

Solution

Question 5

push

pull

both (a) and (b)

none of these

Solution

Question 6

12 N

24 N

48 N

6 N

Solution

Question 7

Both A and R are true and R is the correct explanation of A.

Both A and R are true but R is not the correct explanation of A.

A is true but R is false.

A is false but R is true.

Solution

Question 8

gravitational force

magnetic force

frictional force

electrostatic force

Solution

Question 9

0.25 Pa

2 Pa

8 Pa

4 Pa

Solution

Question 10

newton

pascal

dyne

None of these

Solution

Question 11

Both A and R are true and R is the correct explanation of A.

Both A and R are true but R is not the correct explanation of A.

A is true but R is false.

A is false but R is true.

Solution

Question 12

Hygrometer

Barometer

Hydrometer

Sphygmomanometer

Solution

10³

10⁴

10⁵

10⁶