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Test: Force & Pressure- 2 - Class 8 MCQ


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20 Questions MCQ Test - Test: Force & Pressure- 2

Test: Force & Pressure- 2 for Class 8 2024 is part of Class 8 preparation. The Test: Force & Pressure- 2 questions and answers have been prepared according to the Class 8 exam syllabus.The Test: Force & Pressure- 2 MCQs are made for Class 8 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Force & Pressure- 2 below.
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Test: Force & Pressure- 2 - Question 1

Force applied on an object in same direction

Detailed Solution for Test: Force & Pressure- 2 - Question 1

The force applied on an object in same direction as the object is moving add the speed of the object but when applied in opposite direction, its reduces.

Test: Force & Pressure- 2 - Question 2

The strength of a force is usually expressed by its

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

Force is a vector quantity as it contains both direction and magnitude but strength of a force is usually expressed by its magnitude.

Test: Force & Pressure- 2 - Question 3

Leaves or fruits fall on the ground due to      

Detailed Solution for Test: Force & Pressure- 2 - Question 3
Answer:
The correct answer is gravitational force. Here is a detailed explanation:
Gravity and Falling Objects:
- When leaves or fruits fall from trees, they are pulled towards the ground by the force of gravity.
- Gravity is the force that attracts objects towards each other, and it is a fundamental force of nature.
- The Earth has a large mass, which creates a gravitational field around it.
- Any object near the Earth's surface is pulled towards the center of the Earth by this gravitational field.
How Gravity Works:
- Gravity is always acting on objects, pulling them downwards.
- The strength of the gravitational force depends on the mass of the objects involved and the distance between them.
- The larger the mass of an object, the stronger its gravitational pull.
- The closer an object is to the Earth's surface, the stronger the gravitational pull it experiences.
Leaves and Fruits Falling:
- Leaves and fruits are relatively light objects compared to the Earth.
- When they are detached from a tree branch, they are no longer supported and are subject to the force of gravity.
- The gravitational force pulls them towards the ground, causing them to fall.
In conclusion, leaves and fruits fall on the ground due to the force of gravity. This force attracts all objects towards the center of the Earth, and it is responsible for the falling motion we observe.
Test: Force & Pressure- 2 - Question 4

What is the cause of change in motion or change in the state of motion?

Detailed Solution for Test: Force & Pressure- 2 - Question 4

When force is applied to any object it may change its direction eg.foot ball it may change its shape eg dough it may change its state it may change its motion.

Test: Force & Pressure- 2 - Question 5

Which force enables us to perform all activities involving movement or bending of our body?

Detailed Solution for Test: Force & Pressure- 2 - Question 5

Muscular force enables us to perform all activities involving movement or bending of our body. Muscular force is developed inside muscle due to presence of contractile protein.

Test: Force & Pressure- 2 - Question 6

When two forces act in opposite directions, then net force acting two forces      

Detailed Solution for Test: Force & Pressure- 2 - Question 6

When two force acts on opposite direction then the net force will be obtained by subtracting them while if the forces acts in the same direction then the net force will be obtained by adding them.

Test: Force & Pressure- 2 - Question 7

Which of the following is an example of contact force?

Detailed Solution for Test: Force & Pressure- 2 - Question 7

The forces in which to bodies acting on each other are in contact are called contact force. Muscular force is an example of contact force.

Test: Force & Pressure- 2 - Question 8

The force resulting due to the action of muscles is known as the

Detailed Solution for Test: Force & Pressure- 2 - Question 8

The force resulting due to the action of muscles is known as the muscular force. Muscular force is present in all animals including human beings.

Test: Force & Pressure- 2 - Question 9

The force responsible for changing the state of motion of objects is called

Detailed Solution for Test: Force & Pressure- 2 - Question 9

The force responsible for changing the state of motion of objects is called friction. Friction force is an example of contact force in which two moving bodies are in contact.

Test: Force & Pressure- 2 - Question 10

Electrostatic force is exerted by charged body on

Detailed Solution for Test: Force & Pressure- 2 - Question 10

Electrostatic force is exerted by charged body on another charged body or uncharged body. Two charged body having same kind of charge repels each other.

Test: Force & Pressure- 2 - Question 11

Like poles of magnet

Detailed Solution for Test: Force & Pressure- 2 - Question 11

Like poles of magnet repels each other while unlike poles of two magnet attract each other.

Test: Force & Pressure- 2 - Question 12

Friction arises due to

Detailed Solution for Test: Force & Pressure- 2 - Question 12

Friction arises due to contact between two surfaces. Friction force is more in case of solid body and less in case of gases.

Test: Force & Pressure- 2 - Question 13

A force has

Detailed Solution for Test: Force & Pressure- 2 - Question 13

A force has both magnitude and direction so, force is a vector quantity. Force can change state and shape of body.

Test: Force & Pressure- 2 - Question 14

Gravitational force is acting on

Detailed Solution for Test: Force & Pressure- 2 - Question 14

Gravitational force is acting on earth, moon and on all other planet. This force is acting on all the body having some mass.

Test: Force & Pressure- 2 - Question 15

Which one is an example that shows that force can change shape and size of object?

Detailed Solution for Test: Force & Pressure- 2 - Question 15

Force applied on inflated balloon is an example that shows that force can change shape and size of object.

Test: Force & Pressure- 2 - Question 16

The speed of moving ball increase further if force is applied in

Detailed Solution for Test: Force & Pressure- 2 - Question 16

The speed of moving ball increase further if force is applied in direction of motion and decrease if force is applied in opposite direction.

Test: Force & Pressure- 2 - Question 17

The force exerted by a charged body on another charged or uncharged body is known as

Detailed Solution for Test: Force & Pressure- 2 - Question 17

The force exerted by a charged body on another charged or uncharged body is known as electrostatic force. Electrostatic force is non-contact force.

Test: Force & Pressure- 2 - Question 18

The tendency of a body to maintain its state of rest or uniform motion is called

Detailed Solution for Test: Force & Pressure- 2 - Question 18

The tendency of a body to maintain its state of rest or uniform motion is called inertia. Mass is the measure of inertia.

Test: Force & Pressure- 2 - Question 19

A force of 9.8 N is equivalent to

Detailed Solution for Test: Force & Pressure- 2 - Question 19

1 kg-wt is the amount of force experienced by an object of mass 1 kg due to its own weight and is equal to 9.8 N when acceleration due to gravity is 9.8 m/s2.

Test: Force & Pressure- 2 - Question 20

Force of gravity is a

Detailed Solution for Test: Force & Pressure- 2 - Question 20

Gravitational force is one of the most fundamental forces of nature. It causes objects to attract each other . It is a conservative type of force . The gravitational force is independent of the intervening medium.It is one of the weakest force of the nature.

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