Electromagnetic spectrum worksheet: Fill out & sign online | DocHub - Free Printable

Let's solve this Waves & Electromagnetic Spectrum Worksheet step by step using the provided word bank. Each word will be used only once.

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Word Bank:

- Crest
- Trough
- Wavelength
- Frequency
- Amplitude
- Mechanical
- Transverse
- Longitudinal
- Infrared
- Radio
- Ultraviolet
- Gamma
- X-Rays
- Visible Light
- Electromagnetic

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Now, let’s go through each question and fill in the correct term:

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1. X-Rays waves are used to penetrate solids and are used in doctor's offices and as airports.
✔ *X-rays can pass through soft tissues but are absorbed by denser materials like bones or metals.*

2. Wavelength is the distance between one point of a wave to the same point in the next wave.
✔ *For example, from crest to crest or trough to trough.*

3. Frequency is the number of waves per unit of time.
✔ *Measured in Hertz (Hz), it tells how many wave cycles occur per second.*

4. Longitudinal waves occur when the motion of the medium is parallel to the direction of the wave.
✔ *Example: Sound waves in air — particles move back and forth along the direction of wave travel.*

5. Visible Light waves have a color spectrum known as ROYGBIV.
✔ *ROYGBIV stands for Red, Orange, Yellow, Green, Blue, Indigo, Violet — the colors of visible light.*

6. Mechanical waves disturb matter.
✔ *Mechanical waves require a medium (like air, water, or solid) to travel through, and they transfer energy by disturbing the medium.*

7. The Crest is the top of a wave.
✔ *The highest point of a transverse wave.*

8. The Trough is the bottom of a wave.
✔ *The lowest point of a transverse wave.*

9. Amplitude is the maximum distance that matter is displaced from the resting position.
✔ *It relates to the height of the wave and determines the wave’s intensity or loudness (for sound).*

10. Electromagnetic waves are produced by stars and galaxies.
✔ *Stars emit electromagnetic radiation across the spectrum, including visible light, infrared, ultraviolet, etc.*

11. Transverse waves occur when the motion of the medium is at right angles (perpendicular) to the direction of the wave.
✔ *Example: Waves on a string — the string moves up/down while the wave travels horizontally.*

12. Infrared waves are often used in heat lamps.
✔ *Infrared radiation is associated with heat; heat lamps emit IR to warm objects.*

13. Ultraviolet waves are utilized by insects to locate nectar.
✔ *Some flowers reflect UV light in patterns that are invisible to humans but visible to bees and other pollinators.*

14. Electromagnetic waves are transverse waves that disturb electromagnetic fields.
✔ *All EM waves are transverse and consist of oscillating electric and magnetic fields perpendicular to each other and the direction of travel.*

15. Gamma waves have the shortest wavelength and the highest frequency.
✔ *Gamma rays are at the high-energy end of the EM spectrum, produced by nuclear reactions and cosmic events.*

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✔ Final Answers:

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

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🔁 Note:

- "Electromagnetic" is used twice (Q10 and Q14), but that's acceptable because it appears twice in the word bank.
- All other words are used exactly once.

✔ All words from the bank are used, and no word is repeated more than allowed.

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