Energy - Vocabulary

Front

What is Total Mechanical Energy?

Back

Total Mechanical Energy is the sum of Kinetic Energy (KE) and Potential Energy (PE).

Front

How do you calculate Total Mechanical Energy?

Back

Total Mechanical Energy is calculated using the formula: KE + PE.

Front

What is the formula for calculating Power?

Back

Power (P) is calculated using the formula: P = W/t, where W is work and t is time.

Front

What is the unit of Power?

Back

The unit of Power is Watts (W).

Front

What does Positive Work mean?

Back

Positive Work occurs when the force is parallel and in the same direction as the motion.

Front

How does Friction affect Kinetic Energy?

Back

Friction decreases Kinetic Energy.

Front

What is Kinetic Energy?

Back

Kinetic Energy is the energy of an object due to its motion, calculated as KE = 1/2 mv^2, 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, 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 relationship between Work and Energy?

Back

Work is done when energy is transferred from one system to another, and it is equal to the change in energy of the system.

Front

What is the principle of Conservation of Energy?

Back

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