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

Which of the following is NOT a type of biomechanical force?

  1. Compression

  2. Tension

  3. Shear

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

Buoyancy is a force that acts on objects submerged in a fluid, while compression, tension, and shear are all types of mechanical forces that can be applied to biological tissues.

Multiple choice

What is the fundamental principle behind the operation of a solid state actuator?

  1. Electrostatic attraction

  2. Magnetic attraction

  3. Piezoelectric effect

  4. Shape memory effect
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Solid state actuators utilize the piezoelectric effect, where certain materials generate electrical charge when subjected to mechanical stress or vice versa.

Multiple choice

Which of the following is the primary force that propels a sailboat forward?

  1. Wind

  2. Oars

  3. Engine

  4. Current
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sailboats rely on the power of the wind to generate motion. The sails are designed to capture the wind and convert it into forward thrust.

Multiple choice

The principle of balance involves:

  1. Distributing elements evenly to create a sense of stability

  2. Creating a sense of movement and flow

  3. Arranging elements to create a focal point

  4. Using contrasting elements to create visual interest
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Balance in design refers to the even distribution of elements in a composition, creating a sense of stability and visual harmony.

Multiple choice

What is the work done by a force when an object is displaced?

  1. Force × Displacement

  2. Force × Velocity

  3. Force × Acceleration

  4. Force × Time
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Work is defined as the product of force and displacement in the direction of the force.

Multiple choice

Potential energy is the energy of an object due to:

  1. Its mass

  2. Its velocity

  3. Its position

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

Potential energy is the energy stored in an object due to its position or configuration.

Multiple choice

What is the name of the force that attracts objects to each other?

  1. Gravitational force

  2. Magnetic force

  3. Electric force

  4. Nuclear force
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The gravitational force is the force that attracts objects to each other. It is the weakest of the four fundamental forces in nature.

Multiple choice

What is the primary factor that determines the speed of a sandboard?

  1. The weight of the rider

  2. The angle of the slope

  3. The type of sand

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

All of these factors contribute to the speed of a sandboard.

Multiple choice

What is the name of the force that keeps objects on the ground?

  1. Gravity

  2. Friction

  3. Magnetism

  4. Electromagnetism
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gravity is the force that keeps objects on the ground and pulls them towards the center of the Earth.

Multiple choice

What is the term used to describe the ability of a structure to resist lateral forces such as wind and earthquakes?

  1. Lateral stability

  2. Vertical stability

  3. Rotational stability

  4. Torsional stability
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lateral stability refers to the ability of a structure to resist lateral forces such as wind and earthquakes, which can cause the structure to sway or overturn.

Multiple choice

The Le Chatelier's principle states that:

  1. If a change of condition is applied to a system in equilibrium, the system will shift in a direction that relieves the stress.

  2. If a change of condition is applied to a system in equilibrium, the system will shift in a direction that increases the stress.

  3. If a change of condition is applied to a system in equilibrium, the system will not shift.

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

The Le Chatelier's principle states that if a change of condition is applied to a system in equilibrium, the system will shift in a direction that relieves the stress.

Multiple choice

Which law states that the total mass of a closed system remains constant?

  1. Law of Conservation of Mass

  2. Law of Conservation of Energy

  3. Law of Thermodynamics

  4. Law of Motion
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Law of Conservation of Mass states that the total mass of a closed system remains constant, regardless of the changes that occur within the system.

Multiple choice

The Gunas are said to be in a state of:

  1. Constant flux

  2. Static equilibrium

  3. Periodic oscillation

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

The Gunas are said to be in a state of constant flux, constantly interacting and influencing each other. This dynamic interplay gives rise to the diversity and complexity of the universe.

Multiple choice

What is the primary force that opposes the motion of an aircraft through the air?

  1. Lift

  2. Drag

  3. Thrust

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

Drag is the force that opposes the motion of an aircraft through the air. It is caused by the resistance of the air to the aircraft's movement.

Multiple choice

What is the concept of length contraction?

  1. The shortening of objects moving at high speeds.

  2. The lengthening of objects moving at high speeds.

  3. The stopping of objects moving at the speed of light.

  4. The reversal of objects moving at the speed of light.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Length contraction is the shortening of objects moving at high speeds. This effect is predicted by the theory of relativity and has been confirmed by a number of experiments.