Question

waves & electromagnetic spectrum worksheet
directions: use the word bank to answer the following questions. each word will be used only once.
crest frequency mechanical infrared
trough transverse radio gamma
wavelength longitudinal ultraviolet x - rays
visible light amplitude electromagnetic

1. ______________ waves are used to penetrate solids and are used in doctors offices and as airports.
2. ______________ is the distance between one point of a wave to the same point in the next wave.
3. ______________ is the number of waves per unit of time.
4. ______________ waves occur when the motion of the medium is parallel to the direction of the wave.
5. ______________ waves have a color spectrum known as roygbiv.
6. ______________ waves disturb matter.
7. the ______________ is the top of a wave.
8. the ______________ is the bottom of a wave.
9. ______________ is the maximum distance that matter is displaced from the resting position.
10. ______________ waves are produced by stars and galaxies.
11. ______________ waves occur when the motion of the medium is at right angles (perpendicular) to the direction of the wave.
12. ______________ waves are often used in heat lamps.
13. ______________ waves are utilized by insects to locate nectar.
14. ______________ waves are transverse waves that disturb electromagnetic fields.
15. ______________ waves have the shortest wavelength and the highest frequency.

Explanation:

1. X - Rays are known for their ability to penetrate solids and are used in medical (doctor's offices) and security (airports) settings.
2. Wavelength is defined as the distance between one point of a wave to the same point in the next wave.
3. Frequency is the number of waves per unit of time.
4. Longitudinal waves have the motion of the medium parallel to the wave direction.
5. Visible Light has the color spectrum ROYGBIV (Red, Orange, Yellow, Green, Blue, Indigo, Violet).
6. Mechanical waves disturb matter as they need a medium to travel.
7. Crest is the top of a wave.
8. Trough is the bottom of a wave.
9. Amplitude is the maximum distance matter is displaced from the resting position.
10. Radio waves are produced by stars and galaxies (also used in communication).
11. Transverse waves have the medium motion at right angles (perpendicular) to the wave direction.
12. Infrared waves are often used in heat lamps (as they are associated with heat).
13. Ultraviolet waves can be detected by some insects (e.g., for locating nectar).
14. Electromagnetic waves are transverse waves that disturb electromagnetic fields.
15. Gamma waves have the shortest wavelength and highest frequency in the electromagnetic spectrum.

Answer:

1. X - Rays
2. Wavelength
3. Frequency
4. Longitudinal
5. Visible Light
6. Mechanical
7. Crest
8. Trough
9. Amplitude
10. Radio
11. Transverse
12. Infrared
13. Ultraviolet
14. Electromagnetic
15. Gamma