Physics · Science General

Newtonian Mechanics and Forces

1,605 Questions

Newtonian mechanics studies the motion of objects and the physical laws governing them. This hub covers friction, gravitational force, inertia, and vector quantities. Mastering these fundamental physics concepts is essential for various government competitive exams.

Laws of motionFriction and inertiaVector and scalar quantitiesGravitational accelerationArchimedes principle

Newtonian Mechanics and Forces Questions

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.

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

Mark the correct option

  1. Force can be seen

  2. When an inflated balloon is pressed between the two hands,only its shape changes

  3. Force is a push,pull or squeeze

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

Force cannot be seen.we can 'see' or 'feel' the force through its effects.when an inflated balloon is pressed between the two hands,its shape and size changes.

Force acting on a body is a push,pull or a squeeze.

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

As longer the interaction between two objects exist

  1. The force remains

  2. The force stops after the initial interaction

  3. Both a and b

  4. The force remains for a specific time interval

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A force is a push or pull on an object. This push or pull comes from the objects interacting with one another and only from such interactions. Once the interaction stops, there is no longer any force.

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

Mark the correct option

  1. A force can make stationary object move.

  2. A force can stop a moving object

  3. A force can increase the speed of a moving object

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

Force acting on a body can change its state of rest or of motion.

A force can make a stationary object move-when you kick a stationary football,it moves.

A force can stop a moving object-when a force is applied on a moving object in the direction of motion,its speed increases.

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

 Fill in the blank.

Interaction of one object with ________ results in a force.

  1. Itself

  2. Another object

  3. Both

  4. May itself and may be another object

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

$Answer:-$ B

Best example we can take into account is gravitational force.
Gravitation or gravity, is a natural phenomenon by which all things with mass are brought toward  one another, including planets, stars and galaxies.
And for that attraction force is responsible known as gravitational force.

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

Which of the following is/are correct

  1. At least two objects must interact for a force to come into play.

  2. Interaction of one object with another object results in a force between the two objects.

  3. Interacting forces may be push or pull

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

We can infer that at least two objects must interact for a force to come into play.Thus,an interaction of one object with another object results in a force between the two objects.