science

2. Length- the spatial distance between two consecutive corresponding points of the same phase in a wave
7. longitudinal wave-
8. the highest point, peak, or maximum positive displacement of a wave
10. the bending, spreading, and interference of waves (such as light, sound, or water waves) as they pass around the edge of an obstacle or through a narrow opening
12. a propagating disturbance
13. any conscious or unconscious mental process that occurs independently of direct sensory input
15. a form of non-ionizing electromagnetic radiation with wavelengths of 100–400 nanometers
17. the reduction of an item's density and pressure, representing the region in a longitudinal wave (such as sound) where particles are spread furthest apart

1. wave- a type of wave where the medium's particles or the field
3. spectrum- the entire, continuous range of all possible frequencies, wavelengths, and photon energies of electromagnetic radiation
4. a substance or material (solid, liquid, or gas) that carries or transmits energy—such as sound waves, light, or heat
5. the number of occurrences of a repeating event—such as waves, vibrations, or oscillations
6. radar- a specialized tracking system that uses the Doppler effect to measure the velocity and direction of moving objects at a distance
9. the change in direction of a wavefront (such as light, sound, or water waves) at an interface between two different media, causing the wave to return into the medium from which it originated
11. the maximum displacement or distance moved by a point on a wave or vibrating body, measured from its central equilibrium rest position
14. rays- the highest-energy, shortest-wavelength
16. light- the combination of all visible wavelengths in the electromagnetic spectrum, appearing colorless or white to the human eye
18. the bending of a wave—most commonly light—as it passes at an angle from one transparent medium into another