Tag: what forces can do?

Questions Related to what forces can do?

Other than changing the state of motion of an object, force

physics along with motion what forces can do? force and it's unit force and its effects

  1. can change the shape of an object

  2. has no other effect

  3. can change the colour of an object

  4. can change the state of rest of an object

Show answer
Correct Option: A
Explanation:

Effects of force on an object are
(i) to change the state of motion of the object
(ii) to change the shape and size of the object

If a force changes the shape of a body, the body should be

physics along with motion what forces can do? force and it's unit force and its effects

  1. non-rigid

  2. rigid

  3. fluid only

  4. none of these

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Correct Option: A
Explanation:

When a force is applied on a non-rigid body, its shape changes.

Mark the incorrect statement(s)

physics along with motion what forces can do? force and it's unit force and its effects

  1. Length of a rubber band increases,when a stretching force is applied

  2. A spring shortens in length on the application of a compressive force

  3. Gold on hammering flattens to form a thin leaf

  4. None of above 

Show answer
Correct Option: D
Explanation:

Force can also bring change in dimensions and all the above options are its examples.

In the game of cricket,the stumps fall when the ball strikes them.This is an example of

physics along with motion what forces can do? force and it's unit force and its effects

  1. Contact force

  2. Non contact force

  3. Displacement force

  4. None

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Correct Option: A
Explanation:

The contact forces represent the result of physical contact between two objects ,one by which force is exerted and the other on which force is exerted.

Mark the correct option

physics along with motion what forces can do? force and it's unit force and its effects

  1. The state of motion of an object is described by its speed only

  2. Many a time application of force does not result in a change in the state of motion of an object.

  3. By sitting on a bicycle seat force is applies to the spring fixed to the seat of a bicycle

  4. All of the above 

Show answer
Correct Option: D
Explanation:

It is common experience that many a time application of force does not result in a change in the state of motion.For example,a heavy box may not move at all even if you apply the maximum force that you can exert.

Mass differs from weight in that :

physics along with motion what forces can do? force and it's unit force and its effects

  1. Weight is a force where as mass is not a force.

  2. The mass of an object is always more than its weight.

  3. Mass can be expressed only in the metric system.

  4. There is no difference.

Show answer
Correct Option: A
Explanation:

Weight is gravitational force acting on body.

Mass is amount of matter the body contains.
Relation between weight and mass is
$ w = mg$
So, Option A is correct.

Swimming is possible on account of :-

physics along with motion what forces can do? force and it's unit force and its effects

  1. First law of motion

  2. Second law of motion

  3. Third law of motion

  4. Newton's law of motion

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Correct Option: C
Explanation:

Swimming is account on the newton's third law of motion since as we push the water we feel equal force by water on us and we move front

Four forces are acting on a body. If the body doesn't change its position or shape, the forces

physics along with motion what forces can do? force and it's unit force and its effects

  1. Must be of equal magnitude

  2. Must be parallel & opposite

  3. Must add up to zero when taken as vectors

  4. Must be in a single line and in same direction

Show answer
Correct Option: C
Explanation:

Body does not move even if forces are applied, that means body is in equilibrium.

$ \sum \vec F = \vec 0 $
So, option C is correct.

When you and your friend push a table in opposite direction, it becomes difficult to move. This is because the net force becomes the difference of the two forces.

physics along with motion what forces can do? force and it's unit force and its effects

  1. True

  2. False

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Correct Option: A
Explanation:

Whenever forces act on an object in opposite directions—like the book on the table—the net force is equal to the difference between the two forces. In other words, one force is subtracted from the other to calculate the net force. If the opposing forces are equal, or balanced, the net force is zero, as it is for the book.

Hence, the net force becomes the differences of the two forces.

Make the correct statement (s)

physics along with motion what forces can do? force and it's unit force and its effects

  1. Force in the same direction by addition.

  2. Force in opposite direction by subtraction

  3. Force in same direction by subtracting

  4. Force in opposite direction by addition

Show answer
Correct Option: A,B
Explanation:

If two forces act on an object in the same direction, the net force is equal to the sum of the two forces. This always results in a stronger force than either of the individual forces alone.

Whenever forces act on an object in opposite directions—like the book on the table—the net force is equal to the difference between the two forces. In other words, one force is subtracted from the other to calculate the net force. If the opposing forces are equal, or balanced, the net force is zero, as it is for the book.

Hence, force in the same direction by addition and force in opposite direction by subtraction