Force and Pressure Test

Result

Force and Pressure Test - 16

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 ball of dough is rolled into a flat chapatti. Name the force exerted to change the shape of the dough.

A
Electric Force

B
Compression Force

C
Expansion Force

D
Free Force

Solution

To make a chapatti from a ball of dough, we push the dough inward to reduce its thickness. So the forces applied are compressive forces.
Question 2
1 / -0

Which of the following forces are called fundamental forces:
a) Gravitational force
b) Frictional force
c) Electrostatic force
d) Elastic force
e) Nuclear forces
f) Force due to surface tension

A
b,d.f

B
a,c,e

C
a, b, d, f

D
a, b, c, d,e, f

Solution

In nature, there are only 4 fundamental forces.
Gravitational force
Electromagnetic force
Nuclear force
Short range force
All other forces are more or less a combination of these forces
Question 3
1 / -0

The SI unit of force is:

A
Dyne

B
Gram-weight

C
Newton

D
None of these

Solution

Force is an external agent (push or pull) which can change the state of motion or rest of an object. The SI unit of force is Newton $$N$$.
Question 4
1 / -0

Fruits detached from a tree fall down due to force of gravity. We know that a force arises due to interaction between two objects. Name the objects interacting in this case.

A
Earth and tree

B
Earth and fruit

C
Earth and branch

D
None of the above

Solution

Earth and Fruits.
Here Force of gravity acts between the fruits and earth.
And due to this the fruit detached from the tree falls to the ground due to Force of gravity.
Question 5
1 / -0

While opening a tap with two fingers, the forces applied are :

A
Equal in magnitude

B
Parallel to each other

C
Opposite in direction

D
All the above

Solution

As seen in the diagram,
Forces applied are parallel and in opposite direction, with same magnitude.

Hence, option D is correct.
Question 6
1 / -0

A coin flicked across a table will stop. Why?

A
It is heavy.

B
No force is acting on it.

C
The Earth attracts the coin.

D
Table exerts a frictional force.
Question 7
1 / -0

An object rests on a horizontal fricitionless surface. A horizontal force of magnitude F is applied. This force produces an acceleration:

A
Only if F is larger than the weight of the object

B
Only while the object suddenly changes from rest to motion

C
Always

D
Only if the inertia of the object decreases

Solution

An object rest on a horizontal fricitionless surface. A horizontal force of magnitude F is applied. This force produces an acceleration always as there is no friction.
Question 8
1 / -0

Which of the following requires a pushing force?

A
Throwing a stone at a bird.

B
Grabbing hold of a pencil.

C
Leaves falling from a tree.

D
A load lifted by a pulley.

Solution

When we throw a stone at a bird, we need to apply a push on the stone so that it moves. Options B, C, D needs a pulling force.
Question 9
1 / -0

Fill in the blank
The common water pump works on the principle that the atmosphere exerts _____.

A
Torceilian

B
Pressure

C
Sea level

D
None

Solution

The lift pump is based on the principle that air exerts pressure. It raises water to a distance equal to the height that atmospheric pressure will balance a column of water in a perfect vacuum.
Question 10
1 / -0

Why does nose start bleeding on high mountains?

A
pressure inside body > atmosphere pressure

B
pressure inside body < atmosphere pressure

C
pressure inside body = atmosphere pressure

D
None of the above reason is correct

Solution

We know that atmospheric pressure decreases with high altitude.
So, at higher altitude atmospheric pressure is lower compared to the pressure at the surface.
At higher altitudes the blood pressure inside our body is more than the atmospheric pressure which forces the blood to ooze out from openings like the nose. Hence the nose bleeding.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Force and Pressure Test - 16

Result

Force and Pressure Test - 16

Score

-

Rank

-

SHARING IS CARING

Question 1

Electric Force

Compression Force

Expansion Force

Free Force

Solution

Question 2

b,d.f

a,c,e

a, b, d, f

a, b, c, d,e, f

Solution

Question 3

Dyne

Gram-weight

Newton

None of these

Solution

Question 4

Earth and tree

Earth and fruit

Earth and branch

None of the above

Solution

Question 5

Equal in magnitude

Parallel to each other

Opposite in direction

All the above

Solution

Question 6

It is heavy.

No force is acting on it.

The Earth attracts the coin.

Table exerts a frictional force.

Question 7

Only if F is larger than the weight of the object

Only while the object suddenly changes from rest to motion

Always

Only if the inertia of the object decreases

Solution

Question 8

Throwing a stone at a bird.

Grabbing hold of a pencil.

Leaves falling from a tree.

A load lifted by a pulley.

Solution

Question 9

Torceilian

Pressure

Sea level

None

Solution

Question 10

pressure inside body > atmosphere pressure

pressure inside body < atmosphere pressure

pressure inside body = atmosphere pressure

None of the above reason is correct

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.