What is energy?
The ability to do work.
Energy of moving electrons
Electrical energy
What is an example of radiant energy being changed to chemical energy?
Photosynthesis
This is a type of energy that travels in waves and can travel through empty space.
Radiant energy
This type of energy is produced by the vibrations of matter. These vibrations can move through solid, liquid or gaseous matter, but they cannot travel through empty space.
Sound energy
What is work?
A force (a push or pull) applied to an object which forces the object to move.
Energy an object has due to its motion, position or condition.
Mechanical energy
What is an example of radiant energy being changed to electrical energy?
Solar powered calculator
The distance from a point on one wave to the same point on the next wave.
Wavelength
Rapid back and forth motion of air or other matter.
Vibrations
What is kinetic energy?
The energy any object has because of its motion.
Energy formed when an atom splits apart or when two atoms join to form one.
Nuclear Energy
What is an example of electrical energy being changed to radiant energy?
A lamp
This object can take visible white light and separate it into the colors of the spectrum.
Prism
The number of waves passing a given point in one second.
Frequency
Stored energy or energy that an object has due to its position.
Potential Energy
Energy stored in the way atoms are connected to each other.
Chemical energy
What is an example of electrical energy being changed to thermal energy?
Toaster oven, hair dryer, etc.
This type of radiant energy can be used to kill germs. In people, it can cause sunburn, wrinkling, and skin cancer.
Ultraviolet waves
What is it called when a sound wave reflects off a surface?
Echo
As a roller coaster car goes down a hill, its potential energy is changed into this.
Kinetic Energy
Energy of the movement of atoms and molecules.
Thermal Energy
What is an example of chemical energy being changed to mechanical energy?
Eating food
This type of radiant energy can be used to preserve some foods by killing organisms that cause the food to spoil.
Gamma rays
These sound waves can be used to create images of a patient's body without the harmful effects of x-rays.