Work, Energy, Power

Front

What is Kinetic Energy?

Back

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

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What is Potential Energy?

Back

Potential Energy is the energy stored in an object due to its position or configuration, commonly gravitational potential energy, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is the Work-Energy Principle?

Back

The Work-Energy Principle states that the work done on an object is equal to the change in its kinetic energy.

Front

What is Power in physics?

Back

Power is the rate at which work is done or energy is transferred, calculated as Power = Work/Time.

Front

What is the Law of Conservation of Energy?

Back

The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another.

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What are Non-Conservative Forces?

Back

Non-Conservative Forces are forces that do work on an object and change the total mechanical energy of the system, such as friction, air resistance, and applied forces.

Front

How does height affect Potential Energy?

Back

Potential Energy increases with height; as an object is raised, its gravitational potential energy increases due to the increase in height (PE = mgh).

Front

What happens to Kinetic Energy when an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases, resulting in a constant total mechanical energy in the absence of non-conservative forces.

Front

What is the formula for calculating Work?

Back

Work is calculated as Work = Force x Distance x cos(θ), where θ is the angle between the force and the direction of motion.

Front

What is the relationship between Work and Energy?

Back

Work done on an object results in a change in energy; positive work increases energy, while negative work decreases energy.