Energy

Front

What is Mechanical Energy (ME)?

Back

Mechanical Energy (ME) is the sum of potential energy (PE) and kinetic energy (KE) in a system. ME = PE + KE.

Front

How do you calculate Kinetic Energy (KE)?

Back

Kinetic Energy (KE) is calculated using the formula: KE = 0.5 * mass * velocity^2.

Front

What is Potential Energy (PE)?

Back

Potential Energy (PE) is the energy stored in an object due to its position or height. It is calculated as PE = mass * gravity * height.

Front

What is the relationship between speed and Kinetic Energy?

Back

The faster an object moves, the more kinetic energy it has, as KE is proportional to the square of the velocity.

Front

What is Power in terms of work and time?

Back

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

Front

How do you find the total Mechanical Energy of an object?

Back

Total Mechanical Energy is found by adding the Kinetic Energy and Potential Energy of the object: ME = KE + PE.

Front

What is the unit of Energy in the International System of Units (SI)?

Back

The unit of energy in the SI system is the Joule (J).

Front

If a roller coaster has a total Mechanical Energy of 500 J and a Potential Energy of 100 J, what is its Kinetic Energy?

Back

The Kinetic Energy is 400 J, calculated as KE = ME - PE.

Front

What factors affect the Potential Energy of an object?

Back

Potential Energy is affected by the object's mass, the height above the ground, and the acceleration due to gravity.

Front

What is the formula for calculating Mechanical Energy?

Back

The formula for Mechanical Energy is ME = KE + PE.