Physics ยท Science General

Newtonian Mechanics and Forces

1,559 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

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.

Multiple choice

What is the term for the force per unit area exerted by a fluid?

  1. Pressure

  2. Temperature

  3. Density

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

Pressure is the term for the force per unit area exerted by a fluid.

Multiple choice

What is the term for the energy possessed by a fluid due to its motion?

  1. Kinetic energy

  2. Potential energy

  3. Internal energy

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

Kinetic energy is the term for the energy possessed by a fluid due to its motion.

Multiple choice

What is the term for the energy possessed by a fluid due to its position or elevation?

  1. Kinetic energy

  2. Potential energy

  3. Internal energy

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

Potential energy is the term for the energy possessed by a fluid due to its position or elevation.

Multiple choice

What is the primary force that keeps a glider in the air?

  1. Gravity

  2. Lift

  3. Thrust

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

Lift is the force generated by the wings of the glider as it moves through the air. This force opposes gravity and keeps the glider airborne.

Multiple choice

In a closed system, which of the following quantities is conserved?

  1. Mass

  2. Energy

  3. Momentum

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

In a closed system, energy is conserved, meaning that the total amount of energy within the system remains constant.

Multiple choice

What is the term for the force exerted by water on an object moving through it?

  1. Drag

  2. Lift

  3. Thrust

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

Drag is the force exerted by water on an object moving through it, opposing the motion of the object.

Multiple choice

Which of these is NOT a principle of Angampora?

  1. Balance

  2. Speed

  3. Power

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

While balance, speed, and flexibility are essential principles in Angampora, power is not specifically emphasized.

Multiple choice

What is the force that pulls objects towards the center of the Earth?

  1. Gravity

  2. Magnetism

  3. Friction

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

Gravity is the force that pulls objects towards the center of the Earth.

Multiple choice

Which of the following is a type of force that can cause an object to move or change its shape?

  1. Gravity

  2. Magnetism

  3. Friction

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

Gravity is a type of force that can cause an object to move or change its shape.

Multiple choice

Which of the following is a property that is intrinsic to an object?

  1. Mass

  2. Color

  3. Shape

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

Intrinsic properties are properties that are inherent to an object and do not depend on anything else. Mass, color, and shape are all intrinsic properties of objects.

Multiple choice

The term 'dead load' in building design refers to:

  1. Weight of the building materials

  2. Weight of occupants and furniture

  3. Weight of snow and ice

  4. Weight of wind
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dead load refers to the permanent weight of the building, including the weight of structural elements, finishes, and fixed equipment.

Multiple choice

Which of the following is a vector quantity?

  1. Mass

  2. Temperature

  3. Velocity

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

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

Multiple choice

What is the name of the principle that states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force?

  1. Newton's First Law of Motion

  2. Newton's Second Law of Motion

  3. Newton's Third Law of Motion

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

Newton's First Law of Motion, also known as the law of inertia, states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.