Energy Concepts and Transformations

Front

What is energy in terms of work?

Back

Energy is the ability to do work and can be measured in joules, the same units as work.

Front

How is energy transferred in a tennis racket and ball system?

Back

The tennis racket does work on the tennis ball, transferring energy from the racket to the ball.

Front

What limits the speed at which the ball will leave the racket?

Back

The speed is limited by the amount of energy transferred from the racket to the ball.

Front

What is a system in terms of energy?

Back

A system is anything around which you can imagine a boundary, and energy is a quantitative property of a system.

Front

Name different forms of energy.

Back

Mechanical energy, electrical energy, chemical energy, and radiant energy.

Front

How is energy like money?

Back

Energy exists in different forms like money (coins, bills) and can be converted from one form to another.

Front

What is kinetic energy?

Back

Kinetic energy is energy due to motion, depending on an object's mass and speed.

Front

What is the kinetic energy equation?

Back

Kinetic energy (KE) = 1/2 * mass (kg) * speed (m/s)^2, measured in joules.

Front

What is potential energy?

Back

Potential energy is stored energy due to interactions between objects, such as gravitational or elastic forces.

Front

What is elastic potential energy?

Back

Energy stored by compressing, stretching, or bending an object, like a stretched rubber band.