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WGU Integrated Physical Sciences (C165, C908) Exam - Topic 3 Question 7 Discussion

Posted by Mike on Mar 02, 2026 at 06:38 AM

Which type of wave travels the slowest?

Suggested Answer: D

1. **Wave Speeds**: The speed of different types of waves varies significantly. 2. **Gamma Waves**: These are electromagnetic waves that travel at the speed of light (approximately ( 3 times 10^8 ) m/s). 3. **Radio Waves**: Another type of electromagnetic wave, also traveling at the speed of light. 4. **Visible Light Waves**: These are also electromagnetic waves traveling at the speed of light. 5. **Sound Waves**: Travel much slower compared to electromagnetic waves, with typical speeds in air around 343 m/s. 6. **Conclusion**: Among the given options, sound waves travel the slowest. **Reference**: - Wave Speed Comparisons: Differences in propagation speeds of sound and electromagnetic waves.


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33 comments · newest first
NA
Naomi 2 days ago
Agreed! Sound travels through air, so it's slower.
TA
Tabetha 7 days ago
I think it's D) Sound waves. They need a medium.
CH
Cherry 12 days ago
No, radio waves are faster than sound. Sound is definitely the slowest.
ME
Melissia 18 days ago
But what about B) Radio waves? Aren't they slow too?
LA
Lashon 23 days ago
Yeah, sound travels through air slowly.
FA
Fannie 28 days ago
I think it's D) Sound waves.
CH
Cherilyn 1 month ago
No, light is faster than sound. I agree with D.
RE
Rebbecca 1 month ago
But isn't C) Visible light waves slower than radio waves?
EL
Ellsworth 1 month ago
Yeah, sound travels through air slowly.
JE
Jennifer 2 months ago
I think it's D) Sound waves.
LA
Lashawna 2 months ago
Yup, sound waves are around 343 m/s in air.
TO
Torie 2 months ago
Are you sure? I thought radio waves were slower.
CA
Catalina 2 months ago
Definitely sound waves, they need a medium!
RO
Ronny 2 months ago
Wait, really? I thought it was visible light.
MA
Marsha 2 months ago
Sound waves travel the slowest!
JE
Jean 3 months ago
Gamma waves are the fastest, so it’s not them!
BE
Becky 3 months ago
Really? I always assumed radio waves were slower.
LI
Lino 3 months ago
Definitely sound waves, no doubt about it.
KI
Kirk 3 months ago
I thought it was visible light waves?
LA
Lauran 3 months ago
Sound waves travel the slowest!
JU
Junita 4 months ago
Gamma waves are the fastest, so it's not them!
ME
Merilyn 5 months ago
Really? I always assumed radio waves were slower.
BO
Bobbie 5 months ago
Definitely sound waves, no doubt about it.
GR
Gretchen 5 months ago
I thought it was visible light waves?
NA
Natalya 6 months ago
Sound waves travel the slowest!
AN
Annamae 6 months ago
I practiced a similar question, and I think sound waves are the slowest because they need a medium to travel through.
AN
Antonio 6 months ago
I’m a bit confused. I remember something about radio waves being really fast, but I can't recall how they compare to sound waves.
IZ
Izetta 6 months ago
I feel like I studied this before! I think gamma waves are the fastest, but sound waves definitely seem slower than the others.
WA
Wayne 6 months ago
I think sound waves travel the slowest, but I'm not completely sure. I remember something about their speed being affected by the medium.
RO
Royal 6 months ago
I’m pretty confident that sound waves are the slowest, but I should double-check my notes just in case.
LO
Loreta 7 months ago
I’m a bit confused; I thought visible light was slower than sound, but that doesn’t seem right now.
JA
Jaime 7 months ago
I remember practicing a question like this, and I think radio waves are faster than sound waves.
EL
Elvis 7 months ago
I think sound waves travel slower than the others, but I'm not completely sure.
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