Lesson 52: Energy Flashcard Practice

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or configuration. It is calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

How do you calculate potential energy on the moon?

Back

To calculate potential energy on the moon, use the formula PE = mgh, where g = 1.62 m/s² (moon gravity).

Front

What is kinetic energy?

Back

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

Front

How do you calculate total mechanical energy?

Back

Total mechanical energy is the sum of potential energy and kinetic energy: E_total = PE + KE.

Front

What is the relationship between potential and kinetic energy in a roller coaster?

Back

In a roller coaster, potential energy is highest at the top of a hill and lowest at the bottom, while kinetic energy is lowest at the top and highest at the bottom, assuming no energy is lost to friction.

Front

What is the formula for calculating potential energy?

Back

The formula for calculating potential energy is PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

What is the significance of the height in potential energy calculations?

Back

Height (h) is significant in potential energy calculations because it directly affects the amount of energy stored; higher objects have more potential energy.

Front

How does mass affect potential energy?

Back

Mass (m) directly affects potential energy; greater mass results in greater potential energy when height and gravity are constant.

Front

What is the formula for calculating kinetic energy?

Back

The formula for calculating kinetic energy is KE = 1/2 mv², where m is mass and v is velocity.

Front

How does velocity affect kinetic energy?

Back

Velocity (v) has a squared relationship with kinetic energy; doubling the velocity results in quadrupling the kinetic energy.