Work, Power and Energy Conversion

Front

What is Work in physics?

Back

Work is defined as the product of force and the distance over which it acts. It is measured in joules (J). Formula: Work (W) = Force (F) × Distance (d)

Front

What is Power in physics?

Back

Power is the rate at which work is done or energy is transferred. It is measured in watts (W). Formula: Power (P) = Work (W) / Time (t)

Front

What is Energy?

Back

Energy is the capacity to do work. It exists in various forms, such as kinetic energy, potential energy, thermal energy, etc.

Front

What is Kinetic Energy?

Back

Kinetic energy is the energy of an object due to its motion. It is calculated using the formula: KE = 1/2 mv², where m is mass and v is velocity.

Front

What is Potential Energy?

Back

Potential energy is the stored energy of an object due to its position or state. For example, gravitational potential energy is calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is the relationship between Work and Energy?

Back

Work done on an object results in a change in its energy. When work is done, energy is transferred to or from the object.

Front

What is the formula to calculate Power?

Back

Power (P) = Work (W) / Time (t). It indicates how quickly work is done.

Front

What unit is used to measure Force?

Back

Force is measured in newtons (N).

Front

How do you calculate Work done when a force is applied?

Back

Work (W) = Force (F) × Distance (d) × cos(θ), where θ is the angle between the force and the direction of motion.

Front

What is the unit of Work?

Back

Work is measured in joules (J).