S8P4. Students will explore the wave nature of sound and electromagnetic radiation.
a. Identify the characteristics of electromagnetic and mechanical waves.
b. Describe how the behavior of light waves is manipulated causing reflection, refraction
diffraction, and absorption.
c. Explain how the human eye sees objects and colors in terms of wavelengths.
d. Describe how the behavior of waves is affected by medium (such as air, water, solids).
e. Relate the properties of sound to everyday experiences.
f. Diagram the parts of the wave and explain how the parts are affected by changes in
amplitude and pitch.
Terms : Hide Images
| 16306582334 | wave | a disturbance that transfers energy through matter or empty space |  | 0 |
| 16306582335 | transverse wave | a wave in which the particles vibrate is up and down motion to the direction of the disturbance |  | 1 |
| 16306582336 | longitudinal wave | a wave that the particles of the medium vibrate back and forth along the path that the waves move |  | 2 |
| 16306582337 | trough | lowest point (valley) of a wave |  | 3 |
| 16306582338 | crest | highest point (peak) of a wave | | 4 |
| 16306582339 | amplitude | for transverse waves: the distance between the resting point (or equilibrium) to the crest or trough | | 5 |
| 16306582340 | frequency | the number of crests or troughs that are made in a given time |  | 6 |
| 16306582341 | medium | any substance that a wave moves through; solid, liquid or gas |  | 7 |
| 16306582342 | mechanical wave | waves that transfer energy through matter |  | 8 |
| 16306582343 | wavelength | the distance from one wave crest to the very next crest. (This may also be measured from trough to trough.) | | 9 |
| 16306582344 | reflection | the bouncing back of a wave as it strikes a barrier |  | 10 |
| 16306582345 | diffraction | The bending of waves around a barrier or through opening |  | 11 |
| 16306582346 | sound wave | example of a longitudinal wave; mechanical |  | 12 |
| 16306582347 | amplitude | In a wave is the largest distance the part ice in a wave vibrate from their rest position | | 13 |
| 16306582348 | light | ___________is an electromagnetic wave. |  | 14 |
| 16306582349 | Refraction | The bending of a wave as it passes at an angle from one medium to another |  | 15 |
| 16306582350 | compression | The part of a longitudinal wave where the particles of the medium are close together. | 16 | |
| 16306582351 | rarefaction | a part in a longitudinal wave where the particles are spread apart | 17 | |
| 16306582352 | period | Amount of time it takes one wavelength to pass a point | 18 | |
| 16306582353 | Law of reflection | The angle of incidence is equal to the angle of reflection. | 19 | |
| 16306582354 | interference | The combination of two or more waves that results in a single wave | 20 | |
| 16306582355 | constructive interference | The interference that occurs when two waves combine to make a wave with a larger amplitude | 21 | |
| 16306582356 | destructive interference | The interference that occurs when two waves combine to make a wave with a smaller amplitude | 22 | |
| 16306582357 | resonance | The process by which an object is made to vibrate by absorbing energy at its natural frequencies | 23 | |
| 16306582358 | electromagnetic waves | transverse waves consisting of changing electric fields and changing magnetic fields | 24 | |
| 16306582359 | electromagnetic spectrum | The complete range of electromagnetic waves placed in order of increasing frequency | 25 | |
| 16306582360 | radio waves | Electromagnetic waves with the longest wavelengths and lowest frequencies. Size of a building | 26 | |
| 16306582361 | microwaves | 2nd on the electromagnetic spectrum. Used to heat food. | 27 | |
| 16306582362 | infrared waves | Third on the electromagnetic spectrum. can be seen with goggles | 28 | |
| 16306582363 | visible light | Electromagnetic radiation that can be seen with the unaided eye. ROYGBIV | 29 | |
| 16306582364 | ultraviolet rays | electromagnetic waves with wavelengths just shorter than those of visible light. size of a molecule | 30 | |
| 16306582365 | x-rays | Electromagnetic radiation having a very short wavelength; size of an atom. 2nd shortest wavelength and 2nd highest frequency. Can penetrate substances such as skin and muscle. | 31 | |
| 16306582366 | gamma rays | the highest frequency waves on the electromagnetic spectrum with the shortest wavelength and the greatest energy | 32 | |
| 16306582367 | The Doppler Effect | the change of frequency and pitch due to a moving wave source | 33 |
