posted by Anonymous .
How do sound waves travel between a boat and a submarine in sonar technology?
A. Because of water particles.
B. Because of water waves.
C. Because of water ripples.
D. Because of water currents.
Is it A?
Someone else said that it wasn't B.
the movement of the sound energy is in waves in the water.
Ok, I'm really confused. Sometime ago, PSYDag said that B wouldn't apply if the water was quiet.
I am thinking DAG was thinking of waves on the surface, like surfing. Sound waves are not like that, they are pressure waves underwater.
To be honest, the teacher here did not give good choices. A good choice has no ambiguity.
G8 Electromagnetic Radiation
1. Mechanical waves require a medium to travel in; electromagnetic waves do not.
2. radio waves
3. X-rays have greater frequency then microwaves.
4. 3 Hz
5. Longitudinal, transverse, and surface
6. It is reflected.
7. water particles
8. A 10 liter container that has 5000 molecules.
9. They will be absorbed.
10. wave B; wave A
I assure you that these answers are correct relating to the Unit 3 Lesson 3 Quiz with 10 questions. I got 100% and actually found this quiz easier than I expected. Peace! ~ Jules