Absorption
This is the process of retaining radiation without reflecting it.
Acceleration
This is a change in velocity per time.
Diffraction
This is a spreading out of a wave around corners or through holes.
Distance
This is the measured value (always positive) from one point to another.
Electrical Charge
This is a net gain or loss of electrons.
Electricity
This is a flow of electrons that creates a charge, one of the fundamental forms of energy.
Electromagnet
This is a strong, short-lived magnet created by a looped electrical current.
Electromagnetic Spectrum
The complete range of light waves orgenized by wavelength/ frequency.
Electromagnetic Wave
A propagating wave in space with electric and magnetic components. These components oscillate at right angles to each other. It may travel in avacuum.
Force
In the second law of motion it is Mass X Acceleration. The ability to apply a change in velocity on a given object.
Frequency
This is the number of complete oscillations of a wave per second.
Generator
This is a machine that will convert mechanical, nuclear, or chemical energy into electrical energy.
Gravity
This is an attractive force between any two objects due to mass.
Inertia
This is a measure of resistance to motion, by an object.
Interference
This is the constructive or destructive overlap of waves.
Joule
This is the SI (metric) unit of energy or work.
Kilogram
This is the sandard Si (metric) unit of mass.
Lens
This is a transparent material that refracts light rays.
Mass
This is a measur of the quantity of matter.
Mechanical Advantage
The ratio of resistance force to effort force.
Mechanical Wave
A wave which needs a medium (solid,liquid,gas) in order to propagate itself.
Medium
This is the material in which a mechanical wave travels.
Meter
This is the standard SI (metric) unit of length.
Microwave
Tis is a type of wave in the electromagnetic spectrum used for communiations for cooking.
Mirror
An opaque material that reflects light rays.
Motion
This is a change in the position of the body with respect to time reletive to a refere point.
Motor
This is a machine that converts electrical energy into mechanical energy.
Newton
this is the SI (metric) unit of force.
Newton's First Law
A law of motion that states that an object at rest stays at rest and one in motion stays in motion.
Ratio Wave
This is a type of electromagnetic wave used for communications and Astronomy.
Reflection
The bouncing back of a wave from a surface.
Refraction
The bending of a wave as it moves from one medium to another.
Second
This is the SI unit of time.
Simple Machine
This is a mechanical device which increases output distance or force.
Sound
A compression wave of gas, liquid, or solid, that is detected by your ear.
Time
This is a number,as of years, days, minutes, or seconds representing such an inertia. The SI unit of this is the seconds.
Velocity
This is a change in distance per time.
Wave
A rhythmic disturbance that carries energy through matter or space.
Wavelength
This is a distance from the peak of a successive wave.
Work
The process of changing the energy of a system by means of forces. Force x Distance.
X-ray
This is a type of electromagnetic radiation used for medical images.