Force and Motion

Front

What is the definition of force in physics?

Back

Force is a vector quantity that represents an interaction that causes an object to change its velocity, direction, or shape. It is measured in Newtons (N).

Front

What is Newton's First Law of Motion?

Back

Newton's First Law states that an object at rest will remain at rest, and an object in motion will continue in motion with the same speed and in the same direction unless acted upon by a net external force.

Front

What is the formula for calculating force?

Back

The formula for calculating force is F = m * a, where F is force, m is mass, and a is acceleration.

Front

What is the difference between mass and weight?

Back

Mass is a measure of the amount of matter in an object, typically measured in kilograms (kg), while weight is the force exerted by gravity on that mass, measured in Newtons (N). Weight can change depending on the gravitational field.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time. It is a vector quantity and is measured in meters per second squared (m/s²).

Front

What is the principle of conservation of momentum?

Back

The principle of conservation of momentum states that the total momentum of a closed system remains constant if no external forces act on it.

Front

What is friction and how does it affect motion?

Back

Friction is a force that opposes the relative motion of two surfaces in contact. It can slow down or stop the motion of an object.

Front

What is the role of gravity in motion?

Back

Gravity is a force that attracts two bodies towards each other, affecting the motion of objects, especially those in free fall or orbiting another body.

Front

What is the difference between static and kinetic friction?

Back

Static friction is the force that keeps an object at rest from moving, while kinetic friction is the force that opposes the motion of an object that is already moving.

Front

What is the concept of inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. It is directly related to the mass of the object.