Class 8  >  General Science(Prelims) by IRS Divey Sethi  >  Test: Force & Pressure- 3 Download as PDF

Test: Force & Pressure- 3


Test Description

20 Questions MCQ Test General Science(Prelims) by IRS Divey Sethi | Test: Force & Pressure- 3

Test: Force & Pressure- 3 for Class 8 2022 is part of General Science(Prelims) by IRS Divey Sethi preparation. The Test: Force & Pressure- 3 questions and answers have been prepared according to the Class 8 exam syllabus.The Test: Force & Pressure- 3 MCQs are made for Class 8 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Force & Pressure- 3 below.
Solutions of Test: Force & Pressure- 3 questions in English are available as part of our General Science(Prelims) by IRS Divey Sethi for Class 8 & Test: Force & Pressure- 3 solutions in Hindi for General Science(Prelims) by IRS Divey Sethi course. Download more important topics, notes, lectures and mock test series for Class 8 Exam by signing up for free. Attempt Test: Force & Pressure- 3 | 20 questions in 20 minutes | Mock test for Class 8 preparation | Free important questions MCQ to study General Science(Prelims) by IRS Divey Sethi for Class 8 Exam | Download free PDF with solutions
1 Crore+ students have signed up on EduRev. Have you?
Test: Force & Pressure- 3 - Question 1

Which of the following actions describe pushing force?

Detailed Solution for Test: Force & Pressure- 3 - Question 1

Kicking is a pushing action while the others are pulling actions.

Test: Force & Pressure- 3 - Question 2

Which of the following is NOT a force?

Detailed Solution for Test: Force & Pressure- 3 - Question 2

Chemical energy is not a force.

Test: Force & Pressure- 3 - Question 3

A force is applied on an object in the direction of its motion. What is the effect of force on the object?

Detailed Solution for Test: Force & Pressure- 3 - Question 3

Since, the force is applied in the direction of motion of the object, the speed of the object will increase.

Test: Force & Pressure- 3 - Question 4

If no force acts on a body at rest, then what effect can be observed?

Detailed Solution for Test: Force & Pressure- 3 - Question 4

In the absence of a force, a body will remain at rest (static object) or move with uniform velocity.

Test: Force & Pressure- 3 - Question 5

Which of the following examples describe the change of shape on applying force?

Detailed Solution for Test: Force & Pressure- 3 - Question 5

We apply certain force to tear a paper. The shape of the paper changes after it is repeatedly torn into pieces.

Test: Force & Pressure- 3 - Question 6

Which of the following effects is caused by frictional force?

Detailed Solution for Test: Force & Pressure- 3 - Question 6

Frictional force between two surfaces tends to decrease the speed of a moving object.

Test: Force & Pressure- 3 - Question 7

Which of the following is a non-contact force?

Detailed Solution for Test: Force & Pressure- 3 - Question 7

The electrostatic force is a non-contact force.

Test: Force & Pressure- 3 - Question 8

What causes the atmospheric pressure?

Detailed Solution for Test: Force & Pressure- 3 - Question 8

Atmospheric pressure is caused by the weight of air molecules surrounding the earth.

Test: Force & Pressure- 3 - Question 9

How does the pressure exerted by a liquid change?

Detailed Solution for Test: Force & Pressure- 3 - Question 9

The pressure exerted by a liquid increases with depth.

As we go we deeper in a liquid the pressure of liquid increases. As the depth of liquid increases the weight of liquid column pushing down from above increases and hence the pressure also increases.

Test: Force & Pressure- 3 - Question 10

What is thrust equal to?

Detailed Solution for Test: Force & Pressure- 3 - Question 10

Thrust is the total force applied on a given area. It is given as the product of pressure and area.

Test: Force & Pressure- 3 - Question 11

A When does a body float on water?

Detailed Solution for Test: Force & Pressure- 3 - Question 11

The weight of a body is balanced by the upthrust of water. Hence, the net force acting on a body is zero and so this helps the body float.

Test: Force & Pressure- 3 - Question 12

In which of the following cases the net force is NOT equal to zero?

Detailed Solution for Test: Force & Pressure- 3 - Question 12

When a ball is falling freely from a height, the net force is not equal to zero.

Test: Force & Pressure- 3 - Question 13

We use a straw (narrow pipe) to drink juice from a glass. What make this possible?

Detailed Solution for Test: Force & Pressure- 3 - Question 13

When we suck air from pipe, atmospheric pressure pushes the liquid juice up to fill the vacuum and it comes up.

Test: Force & Pressure- 3 - Question 14

Which of the following effects is NOT caused by the magnetic force between a magnet and a magnetic substance?

Detailed Solution for Test: Force & Pressure- 3 - Question 14

A magnet attracts a magnetic material thereby making it move from rest. There may be a temporary change in the shape or size. But there is no change in the chemical composition.

Test: Force & Pressure- 3 - Question 15

In cities, water from an overhead tank is supplied to houses using the principle of
(i) difference in pressure.
(ii) gravitational force.
(iii) decrease of friction m pipes.

Detailed Solution for Test: Force & Pressure- 3 - Question 15

The water at a height flows down due to pressure and gravitational force.

Test: Force & Pressure- 3 - Question 16

A deep sea diver's ears get hurt when he is inside the water. What is the cause for it?

Detailed Solution for Test: Force & Pressure- 3 - Question 16

Water pressure increases with an increase in the depth of the sea which effects the diver's ears.

Test: Force & Pressure- 3 - Question 17

What does a barometer measure?

Detailed Solution for Test: Force & Pressure- 3 - Question 17

The barometer is used to measure atmospheric pressure of a place.

Test: Force & Pressure- 3 - Question 18

Four forces are acting on a body. If the body does not change its position or shape/then what does it mean?

Detailed Solution for Test: Force & Pressure- 3 - Question 18

For a body to be in equilibrium or at rest, the vector sum of all forces must be zero.

Test: Force & Pressure- 3 - Question 19

Why do deep sea divers use a special suit for diving?

Detailed Solution for Test: Force & Pressure- 3 - Question 19

The suit (known as scuba suit) is pressurized to counter balance the heavy pressure in deep sea.

Test: Force & Pressure- 3 - Question 20

On what factors does the magnitude of non-contact force depend?

Detailed Solution for Test: Force & Pressure- 3 - Question 20

The magnitude of non-contact force depends on the distance between two bodies, mass and chemical composition of the two bodies.

Use Code STAYHOME200 and get INR 200 additional OFF
Use Coupon Code
Information about Test: Force & Pressure- 3 Page
In this test you can find the Exam questions for Test: Force & Pressure- 3 solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Force & Pressure- 3, EduRev gives you an ample number of Online tests for practice