Electromagnetic radiation - what does what? worksheet|KS4 Physics ... - Free Printable
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Step-by-step solution for: Electromagnetic radiation - what does what? worksheet|KS4 Physics ...
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Step-by-step solution for: Electromagnetic radiation - what does what? worksheet|KS4 Physics ...
To solve this task, you need to match each statement in the grid to the correct type of electromagnetic radiation using the provided key, and then colour the box accordingly.
---
| Electromagnetic wave | Colour |
|----------------------|---------|
| Radio waves | Purple |
| Microwave | Yellow |
| Infrared | Orange |
| Visible light | Pink |
| Ultra violet | Green |
| X-rays | Blue |
| Gamma | Red |
---
Now let’s go through each statement one by one and assign the correct radiation type (and thus colour).
---
## ✔ STATEMENT BY STATEMENT SOLUTION:
---
1. “This radiation is used to sterilise medical equipment and food by killing bacteria.”
→ This is Gamma radiation (high energy, kills microbes).
✔ Colour: Red
2. “This radiation is used for satellite transmissions (the signals are bounced off satellites).”
→ These are Radio waves (long-range communication).
✔ Colour: Purple
3. “This radiation is used to detect security marks made by special inks (e.g. on bank notes).”
→ This is Ultra violet (UV makes fluorescent inks glow).
✔ Colour: Green
4. “This radiation is used to produce images of bones and dense tissues (e.g. tumours).”
→ This is X-rays (penetrate soft tissue, absorbed by bone).
✔ Colour: Blue
5. “This radiation is used for cooking (radiation is absorbed by water molecules in food and transferred into heat).”
→ This is Microwave (heats water molecules).
✔ Colour: Yellow
---
6. “With this radiation, long-wave signals are reflected off the ionosphere.”
→ This refers to Radio waves (AM radio bounces off ionosphere).
✔ Colour: Purple
7. “This radiation is used in security systems (intruders set off alarms by breaking beams).”
→ This is typically Infrared (motion sensors use IR beams).
✔ Colour: Orange
8. “This radiation is produced by toasters, grills and radiant heaters.”
→ These emit Infrared (heat radiation).
✔ Colour: Orange
9. “Darker skin protects other body tissues from this type of radiation.”
→ Darker skin protects against Ultra violet (UV causes skin damage).
✔ Colour: Green
10. “This type of radiation is produced by fluorescent tubes and lamps.”
→ Fluorescent lights emit Visible light (and some UV, but primary output is visible).
✔ Colour: Pink
---
11. “This type of radiation can cause internal body heating.”
→ Microwaves penetrate and heat body tissues (hence microwave ovens).
✔ Colour: Yellow
12. “This type of radiation is transferred away from hot objects.”
→ Hot objects emit Infrared radiation.
✔ Colour: Orange
13. “Lead aprons and screens protect hospital staff from this radiation.”
→ Lead blocks X-rays (used in radiology).
✔ Colour: Blue
14. “This radiation is used to transmit TV and radio signals.”
→ Again, Radio waves.
✔ Colour: Purple
15. “This radiation is used to kill cancerous cells (radiotherapy).”
→ Gamma rays are used in radiotherapy (targeted high-energy radiation).
✔ Colour: Red
---
16. “This radiation is used as well as infrared to carry digital signals through optical fibres.”
→ Optical fibres use Visible light (sometimes near-infrared, but visible is key here).
✔ Colour: Pink
17. “This radiation is used to treat muscular problems.”
→ Often Infrared lamps are used for muscle therapy (heat therapy).
✔ Colour: Orange
18. “This radiation is used to carry signals from TV remote controls.”
→ Remotes use Infrared.
✔ Colour: Orange
19. “Overexposure to this radiation causes skin cancer and eye damage.”
→ Ultra violet (UV) causes DNA damage → skin cancer.
✔ Colour: Green
20. “This radiation is also known as radiant heat.”
→ Infrared is commonly called “radiant heat”.
✔ Colour: Orange
---
21. “This ionising radiation can damage cells and cause cancer.”
→ Ionising radiation includes Gamma, X-rays, UV. But since it says “ionising” and doesn’t specify penetration, Gamma fits best (most penetrating ionising). Also, later statements distinguish UV and X-rays.
✔ Colour: Red
22. “This radiation can damage cells and cause cancer. It cannot pass through dense material e.g. bones and metal.”
→ This describes X-rays — they *can* pass through soft tissue but not dense materials like bone/metal.
✔ Colour: Blue
23. “This radiation can be blocked from the skin by using sunscreen lotion.”
→ Sunscreen blocks Ultra violet (UV).
✔ Colour: Green
24. “This radiation is used in sun-beds as it tans the skin.”
→ Sunbeds use Ultra violet (UV-A/B).
✔ Colour: Green
25. “This radiation is detected by medical scanners, night vision cameras and sensors.”
→ Night vision detects Infrared (heat signatures). Medical scanners may use IR or others, but context points to IR.
✔ Colour: Orange
---
26. “This radiation is used in endoscopes.”
→ Endoscopes use Visible light to illuminate and view inside the body.
✔ Colour: Pink
27. “This radiation is detected in photography.”
→ Traditional film photography uses Visible light. Digital sensors too.
✔ Colour: Pink
28. “The ozone layer absorbs this type of radiation coming to Earth from the Sun.”
→ Ozone absorbs Ultra violet (especially UV-B/C).
✔ Colour: Green
29. “In high doses this radiation will kill all cells.”
→ Extremely high dose of Gamma radiation is lethal (used in sterilisation and weapons).
✔ Colour: Red
30. “Washing powders contain chemicals to make whites appear whiter. This radiation makes these chemicals glow.”
→ These chemicals fluoresce under Ultra violet (UV) light.
✔ Colour: Green
---
## 🎨 FINAL COLOURING SUMMARY (by row):
You can now colour each cell based on the above matches.
---
| # | Radiation Type | Colour |
|----|----------------|---------|
| 1 | Gamma | Red |
| 2 | Radio waves | Purple |
| 3 | Ultra violet | Green |
| 4 | X-rays | Blue |
| 5 | Microwave | Yellow |
| 6 | Radio waves | Purple |
| 7 | Infrared | Orange |
| 8 | Infrared | Orange |
| 9 | Ultra violet | Green |
| 10 | Visible light | Pink |
| 11 | Microwave | Yellow |
| 12 | Infrared | Orange |
| 13 | X-rays | Blue |
| 14 | Radio waves | Purple |
| 15 | Gamma | Red |
| 16 | Visible light | Pink |
| 17 | Infrared | Orange |
| 18 | Infrared | Orange |
| 19 | Ultra violet | Green |
| 20 | Infrared | Orange |
| 21 | Gamma | Red |
| 22 | X-rays | Blue |
| 23 | Ultra violet | Green |
| 24 | Ultra violet | Green |
| 25 | Infrared | Orange |
| 26 | Visible light | Pink |
| 27 | Visible light | Pink |
| 28 | Ultra violet | Green |
| 29 | Gamma | Red |
| 30 | Ultra violet | Green |
---
## ✔ Final Answer:
> Colour each box according to the radiation type matched above using the key:
> - Red for Gamma
> - Purple for Radio waves
> - Yellow for Microwave
> - Orange for Infrared
> - Pink for Visible light
> - Green for Ultra violet
> - Blue for X-rays
You can now confidently colour the worksheet!
Let me know if you’d like a visual grid or printable version!
---
🔑 Key (for reference):
| Electromagnetic wave | Colour |
|----------------------|---------|
| Radio waves | Purple |
| Microwave | Yellow |
| Infrared | Orange |
| Visible light | Pink |
| Ultra violet | Green |
| X-rays | Blue |
| Gamma | Red |
---
Now let’s go through each statement one by one and assign the correct radiation type (and thus colour).
---
## ✔ STATEMENT BY STATEMENT SOLUTION:
---
🟦 Row 1
1. “This radiation is used to sterilise medical equipment and food by killing bacteria.”
→ This is Gamma radiation (high energy, kills microbes).
✔ Colour: Red
2. “This radiation is used for satellite transmissions (the signals are bounced off satellites).”
→ These are Radio waves (long-range communication).
✔ Colour: Purple
3. “This radiation is used to detect security marks made by special inks (e.g. on bank notes).”
→ This is Ultra violet (UV makes fluorescent inks glow).
✔ Colour: Green
4. “This radiation is used to produce images of bones and dense tissues (e.g. tumours).”
→ This is X-rays (penetrate soft tissue, absorbed by bone).
✔ Colour: Blue
5. “This radiation is used for cooking (radiation is absorbed by water molecules in food and transferred into heat).”
→ This is Microwave (heats water molecules).
✔ Colour: Yellow
---
🟦 Row 2
6. “With this radiation, long-wave signals are reflected off the ionosphere.”
→ This refers to Radio waves (AM radio bounces off ionosphere).
✔ Colour: Purple
7. “This radiation is used in security systems (intruders set off alarms by breaking beams).”
→ This is typically Infrared (motion sensors use IR beams).
✔ Colour: Orange
8. “This radiation is produced by toasters, grills and radiant heaters.”
→ These emit Infrared (heat radiation).
✔ Colour: Orange
9. “Darker skin protects other body tissues from this type of radiation.”
→ Darker skin protects against Ultra violet (UV causes skin damage).
✔ Colour: Green
10. “This type of radiation is produced by fluorescent tubes and lamps.”
→ Fluorescent lights emit Visible light (and some UV, but primary output is visible).
✔ Colour: Pink
---
🟦 Row 3
11. “This type of radiation can cause internal body heating.”
→ Microwaves penetrate and heat body tissues (hence microwave ovens).
✔ Colour: Yellow
12. “This type of radiation is transferred away from hot objects.”
→ Hot objects emit Infrared radiation.
✔ Colour: Orange
13. “Lead aprons and screens protect hospital staff from this radiation.”
→ Lead blocks X-rays (used in radiology).
✔ Colour: Blue
14. “This radiation is used to transmit TV and radio signals.”
→ Again, Radio waves.
✔ Colour: Purple
15. “This radiation is used to kill cancerous cells (radiotherapy).”
→ Gamma rays are used in radiotherapy (targeted high-energy radiation).
✔ Colour: Red
---
🟦 Row 4
16. “This radiation is used as well as infrared to carry digital signals through optical fibres.”
→ Optical fibres use Visible light (sometimes near-infrared, but visible is key here).
✔ Colour: Pink
17. “This radiation is used to treat muscular problems.”
→ Often Infrared lamps are used for muscle therapy (heat therapy).
✔ Colour: Orange
18. “This radiation is used to carry signals from TV remote controls.”
→ Remotes use Infrared.
✔ Colour: Orange
19. “Overexposure to this radiation causes skin cancer and eye damage.”
→ Ultra violet (UV) causes DNA damage → skin cancer.
✔ Colour: Green
20. “This radiation is also known as radiant heat.”
→ Infrared is commonly called “radiant heat”.
✔ Colour: Orange
---
🟦 Row 5
21. “This ionising radiation can damage cells and cause cancer.”
→ Ionising radiation includes Gamma, X-rays, UV. But since it says “ionising” and doesn’t specify penetration, Gamma fits best (most penetrating ionising). Also, later statements distinguish UV and X-rays.
✔ Colour: Red
22. “This radiation can damage cells and cause cancer. It cannot pass through dense material e.g. bones and metal.”
→ This describes X-rays — they *can* pass through soft tissue but not dense materials like bone/metal.
✔ Colour: Blue
23. “This radiation can be blocked from the skin by using sunscreen lotion.”
→ Sunscreen blocks Ultra violet (UV).
✔ Colour: Green
24. “This radiation is used in sun-beds as it tans the skin.”
→ Sunbeds use Ultra violet (UV-A/B).
✔ Colour: Green
25. “This radiation is detected by medical scanners, night vision cameras and sensors.”
→ Night vision detects Infrared (heat signatures). Medical scanners may use IR or others, but context points to IR.
✔ Colour: Orange
---
🟦 Row 6
26. “This radiation is used in endoscopes.”
→ Endoscopes use Visible light to illuminate and view inside the body.
✔ Colour: Pink
27. “This radiation is detected in photography.”
→ Traditional film photography uses Visible light. Digital sensors too.
✔ Colour: Pink
28. “The ozone layer absorbs this type of radiation coming to Earth from the Sun.”
→ Ozone absorbs Ultra violet (especially UV-B/C).
✔ Colour: Green
29. “In high doses this radiation will kill all cells.”
→ Extremely high dose of Gamma radiation is lethal (used in sterilisation and weapons).
✔ Colour: Red
30. “Washing powders contain chemicals to make whites appear whiter. This radiation makes these chemicals glow.”
→ These chemicals fluoresce under Ultra violet (UV) light.
✔ Colour: Green
---
## 🎨 FINAL COLOURING SUMMARY (by row):
You can now colour each cell based on the above matches.
---
📊 Quick Reference Table (Statement Number → Radiation Type → Colour)
| # | Radiation Type | Colour |
|----|----------------|---------|
| 1 | Gamma | Red |
| 2 | Radio waves | Purple |
| 3 | Ultra violet | Green |
| 4 | X-rays | Blue |
| 5 | Microwave | Yellow |
| 6 | Radio waves | Purple |
| 7 | Infrared | Orange |
| 8 | Infrared | Orange |
| 9 | Ultra violet | Green |
| 10 | Visible light | Pink |
| 11 | Microwave | Yellow |
| 12 | Infrared | Orange |
| 13 | X-rays | Blue |
| 14 | Radio waves | Purple |
| 15 | Gamma | Red |
| 16 | Visible light | Pink |
| 17 | Infrared | Orange |
| 18 | Infrared | Orange |
| 19 | Ultra violet | Green |
| 20 | Infrared | Orange |
| 21 | Gamma | Red |
| 22 | X-rays | Blue |
| 23 | Ultra violet | Green |
| 24 | Ultra violet | Green |
| 25 | Infrared | Orange |
| 26 | Visible light | Pink |
| 27 | Visible light | Pink |
| 28 | Ultra violet | Green |
| 29 | Gamma | Red |
| 30 | Ultra violet | Green |
---
## ✔ Final Answer:
> Colour each box according to the radiation type matched above using the key:
> - Red for Gamma
> - Purple for Radio waves
> - Yellow for Microwave
> - Orange for Infrared
> - Pink for Visible light
> - Green for Ultra violet
> - Blue for X-rays
You can now confidently colour the worksheet!
Let me know if you’d like a visual grid or printable version!
Parent Tip: Review the logic above to help your child master the concept of electromagnetic radiation worksheet.
