Tag: what is force?

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Multiple choice physics force and types of force introduction to force what is force? concept of force and its unit

In which of the following cases, a force is not being applied?

  1. A man standing behind a stationary car.

  2. A car being pushed by a man.

  3. A man trying to stop a sliding car.

  4. A man standing on a car.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

For pushing a car, a force is required in the direction of motion of the car. 

In trying to stop a sliding car, a force is required against the direction of motion of the car. 
A man standing on the car applies the force of weight on the car.
But, to stand behind a stationary car, no net force needs to be applied in the car.
Option A

Multiple choice physics force and types of force introduction to force what is force? concept of force and its unit
A force can be applied only when it is in contact with an object. Which of the following is the category of this type of force?

  1. Magnetic force

  2. Contact force

  3. Non-contact force

  4. Muscular force
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When a force can be applied by an object on another only if it is in contact with each other, it is called as a contact force. 

Multiple choice physics force and types of force introduction to force what is force? concept of force and its unit

What happens when there is no interaction between the objects?

  1. Force comes in action.

  2. Force does not come in action.

  3. Force may or may not come in action.

  4. None of the above is correct
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

There are two types of force 
1) Interactive force: Its effect comes when two objects will come in contact.
2) Non- Interactive force: Its effect will come when an object comes in their respective field strength.

exp:  Charge in an electric field, Mass in gravitation field.
Hence Option C.

Multiple choice physics force and types of force introduction to force what is force? concept of force and its unit

Fill in the blanks:

In the game of tug-of-war, both the teams pulls each other. So ________.

  1. force is applied due to interaction.

  2. force is not applied although there is interaction.

  3. force is applied although there is an interaction.

  4. none of the above.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Force always comes into action when there will be interaction between the objects, Here both the teams are exerting force on each other through the rope.

Multiple choice physics force and types of force introduction to force what is force? concept of force and its unit

A force when applied on a non rigid object

  1. Does not change the inter spacing between its constituent particles

  2. Do not cause any change in its dimension

  3. Do not produce motion in it

  4. None
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A force when applied on a non rigid object, changes the inter spacing between its constituent particles and therefore causes change in its dimension and can also produce motion in it.

Multiple choice physics force and types of force introduction to force what is force? concept of force and its unit

When a force is applied on a rigid object

  1. It changes the inter spacing between its constituent particles.

  2. It changes the dimension of the object

  3. It only causes motion in it

  4. All
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A force when applied on a rigid object does not change the inter spacing between its constituent particles and therefore it does not change the dimension of the object.,but cause only motion in it.

Multiple choice physics force and types of force introduction to force what is force? concept of force and its unit

Mark the incorrect option:

  1. A force always make an object to move

  2. A force has both magnitude and direction

  3. A force can be represented by an arrow

  4. Force is a vector quantity
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

We are to remember that force does not always make an object to move. For example,we may push a large piece of rock without displacing it from its position.We may even push a wall without any success. And, on the other had, we may apply force on a dough by our fingers to change its shape and size. So, a force does not always make an object to move, it may be used to change the shape and size of an object as well.

Force is a vector quantity because it has both magnitude and direction.