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 between two objects come into play when

  1. Both objects are very heavy

  2. Both objects move with some speed

  3. Both objects interact with each other

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

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

An interaction of one object with another object ,results in a force between the two objects.

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

Which of the following laws represents the qualitative measure of force?

  1. Newton's first law of motion

  2. Fleming's right hand rule

  3. Fleming's left hand rule

  4. Zeroth law of thermodynamics
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Newton's first law of motion represents the qualitative measure of force.It states that:

An object remains in the state of rest or of uniform motion in a straight line unless compelled to change that state by an applied unbalanced force.
All objects resist change in their state of motion. The tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called inertia. This is why, the first law of motion is also known as the law of inertia.

Multiple choice biology sensory organs of humans - sense organs ear : the organ of hearing and equilibrium ear and its function ear

Maculae maintains

  1. Static equilibrium

  2. Dynamic equilibrium

  3. Both A and B

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Maculae are the specialized mechanoreceptors within the utricle and saccule for the detection of static equilibrium, they make use of the hair cells to detect the movements of the otolithic membrane, the nerve impulses thus generated and transmitted along the vestibular branch of the cranial nerve to the central nervous system.

So, the correct option is c 'Both a and b'.

Multiple choice physics statics and dynamics of fluid (liquid and gas) pressure in liquids and gases pressure dependence on force and area concept of pressure

Fill in the blank.

The force acting on a unit area of a surface is called____.

  1. atmospheric pressure

  2. pressure

  3. muscular force

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Pressure is force acting on a unit area of a surface when force applied on object in a particular area of object exert pressure on it.

Multiple choice physics scientists inventions and inventors in science indian scientist: biography and achievements scientist and their achievements

The output of a given windmill

  1. Increases with an increase in wind velocity

  2. Decreases with an increase in wind velocity

  3. Is independent of wind velocity

  4. Cannot be determined
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The power output of a windmill is proportional to the cube of the wind velocity. Therefore, as wind velocity increases, the energy captured and the output of the windmill increase significantly.