Conservation Laws

Front

What is the definition of kinetic energy?

Back

Kinetic energy is the energy that an object possesses due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the definition of potential energy?

Back

Potential energy is the stored energy of an object due to its position or state, commonly associated with gravitational or elastic energy.

Front

What does the law of conservation of energy state?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is impulse in physics?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time, calculated as Impulse = Force × Time.

Front

What is the principle of conservation of charge?

Back

The principle of conservation of charge states that the total electric charge in an isolated system remains constant over time.

Front

What is the difference between elastic and inelastic collisions?

Back

In elastic collisions, both momentum and kinetic energy are conserved; in inelastic collisions, momentum is conserved but kinetic energy is not.

Front

What is the formula for calculating force?

Back

Force is calculated using Newton's second law: F = ma, where F is force, m is mass, and a is acceleration.

Front

What is the definition of work in physics?

Back

Work is defined as the energy transferred to or from an object via the application of force along a displacement, calculated as Work = Force × Distance × cos(θ).

Front

What is the concept of momentum?

Back

Momentum is the product of an object's mass and its velocity, represented as p = mv, and is a vector quantity.

Front

What is the conservation of momentum principle?

Back

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