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Apopka Recovery 8 Q1

QuestionAnswer
science the systematic study of the world around us
emperical evidence proof that includes observations and measurements
theory idea to explain something that is based on observations and support which comes from scientific investigations
model representation of an object or a process that allows scientist to study something in greater details
law a basic principle of nature that always occurs under certain conditions
experiment organized procedure to study something under controlled conditions
observation using your senses to obtain(get)information
hypothesis a testable idea that leads to a scientific investigation
variable any factor that can change in an experiment, observation or model
data information gathered by observation or experimentation that can be used in calculating or reasoning (data is organized using charts and graphs)
model representation of an object or a process that allows scientist to study something in greater details
wave a disturbance that transfers energy from one place to another
medium the material through which a wave travels
longitudinal wave particle move back and forth in the same direction that the wave travels, or parallel to the wave
transverse wave particles move perpendicularly to the direction the wave travels
mechanical wave waves that require a medium
electromagnetic wave disturbance in electric and magnetic fields(transverse waves)
amplitude measure of how far particles in the medium move away from their normal rest position
wavelength distance over which the wave's shape repeats
wave period time required for one cycle of a wave
frequency how many cycles of a wave occurred over a period of time
hertz frequency is measured in the unit hertz (Hz)
wavefront shapes suvh as circles or spheres to represent the peaks of a wave
wave speed speed at which a wave travels
radiation transfer of energy as EM waves
electromagnetic spectrum light waves that are visible to us
infrared longer wavelength than red light
ultraviolet slightly shorter wavelengths than violet light
transparent Matter that transmit light.Examples are air, water and some types of glass.
translucent Transmit light but does not let the light pass straight through.
opaque Materials that does not let light pass through.
absorption Transfer of light energy to matter.
reflection Bouncing of light off a surface.
refraction Change in direction of a wave as it passes from one medium into another at an angle.
scattering Occurs when light is sent in many directions as it passes through a medium.
Created by: dsookdeo