Lesson: Chapter 4 — Waves and their applications

4.3. Sound and how it travels 3 of 5 Reset answers

Clear all your answers?

This erases every answer in this set and starts you again at question one. Your score will be gone.

Type these four numbers to confirm:

Those numbers don't match. Look at them again and type them.

Yes, clear Keep them

Question 3

In which of these does sound travel fastest?

A Water B A vacuum C Air D Steel

The right answer is the one marked above.

Steel. About 5000 m s^-1 in steel, against about 1400 in water and 330 in air.

In a vacuum sound does not travel at all.

Answer the question to continue.