Learn what an absolute or perfect vacuum means. Find out whether a perfect vacuum is possible and understand the reasons.
Physics
Learn about radioactivity. Get the definition and explore the types of radioactive decay. See the nuclear equations for decay.
Radioactivity and the Types of Radioactive Decay
A simple equation relates wavelength to frequency. See examples converting between wavelength and frequency for light and sound.
Wavelength to Frequency Calculation and Equation
Learn what vapor pressure is. Get a table of values and learn how to calculate vapor pressure. Know the vapor pressure of water.
Vapor Pressure – Definition and How to Calculate It
Learn the difference between ionizing and non-ionizing radiation. See the parts of the spectrum and risks for each type of radiation.
Difference Between Ionizing and Non-Ionizing Radiation
Get the vacuum definition in science. See examples of a vacuum and learn ways to produce one in everyday life.
What Is a Vacuum in Science? Definition and Examples Recently updated !
Get the values for the speed of light in different units. Learn whether anything can go faster than the speed of light.
What Is the Speed of Light?
Learn about background radiation. Get the definition and find out about sources and risks associated with them.
What Is Background Radiation? Sources and Risks
Get the definition of potential energy. See potential energy examples in everyday life.