Lesson Worksheet: The Electromagnetic Spectrum Physics
In this worksheet, we will practice analyzing the electromagnetic spectrum by identifying and describing types of electromagnetic radiation and their sources.
Q1:
What is the name of the type of electromagnetic radiation that has the longest wavelengths?
- AGamma rays
- BUltrasonic waves
- CRadio waves
- DMicrowaves
- EX-rays
Q2:
Which row of the table correctly shows how the wavelengths of various types of electromagnetic waves compare with each other?
| Types of Electromagnetic Wave | |||||
|---|---|---|---|---|---|
| Longest Wavelength Shortest Wavelength | |||||
| Row | Type | Type | Type | Type | Type |
| i | Radio | X-ray | Visible | Infrared | Gamma |
| ii | Visible | Ultraviolet | X-ray | Radio | Microwave |
| iii | Infrared | Visible | Ultraviolet | X-ray | Gamma |
| iv | X-ray | Gamma | Visible | Infrared | Microwave |
| v | Radio | Microwave | Infrared | Ultraviolet | Visible |
- Ai
- Bii
- Ciii
- Dv
- Eiv
Q3:
Which of the following could be a source of ultraviolet radiation?
- ANone of the answers is correct.
- BDecaying atomic nuclei
- CThermal motion of atoms and molecules at room temperature
- DHigh-speed electrons impacting on a metal plate
- EAlternating electric currents
Q4:
What is the name of the type of electromagnetic radiation that has the highest frequencies?
- AS-waves
- BLongitudinal waves
- CGamma rays
- DX-rays
- EUltrasonic waves
Q5:
What is the name of the type of electromagnetic radiation that has the shortest wavelengths?
- AGamma rays
- BX-rays
- CUltrasonic waves
- D-waves
- EMicrowaves
Q6:
Which of the following could be a source of gamma radiation?
- ADecaying atomic nuclei
- BAlternating electric currents
- CNone of the answers is correct.
- DDirect electric currents
- EThermal motion of atoms and molecules
Q7:
Which of the following could be a source of X-ray radiation?
- AThermal motion of atoms and molecules
- BHigh-speed electrons impacting on a metal plate
- CDecaying atomic nuclei
- DAlternating electric currents
- ENone of the answers is correct.
Q8:
Which of the following could be a source of microwave radiation?
- AHigh-speed electrons impacting on a metal plate
- BNone of the answers is correct.
- CThermal motion of atoms and molecules
- DAlternating electric currents
- EDirect electric currents
Q9:
Which of the following could be a source of infrared radiation?
- AAlternating electric currents
- BDirect electric currents
- CThermal motion of atoms and molecules
- DNone of the answers is correct.
- EDecaying atomic nuclei
Q10:
The table shows a set of types of electromagnetic waves and the orders of magnitude of their wavelengths.
| Radio | Microwave | Infrared | Visible | Ultraviolet | X-Ray | Gamma Ray |
|---|---|---|---|---|---|---|
| m | m | m | m | m | m | m |
Using the values from the table, how many wavelengths of ultraviolet radiation would have the same total length as one wavelength of infrared radiation? Answer in standard form.
- A
- B
- C
- D
- E
Using the values from the table, how many wavelengths of the longest wavelength gamma radiation would have the same total length as one wavelength of X-ray radiation? Answer in standard form.
- A
- B
- C
- D
- E
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