Question

mission wm1: nature and categories of waves
which three of the following descriptions are true of
wave motion? select the three answers.
a. waves involve periodic and repeated disturbances
of the medium.
b. as waves pass through a medium, particles of the
medium undergo a back-and-forth vibration about a
fixed position.
c. waves involve the movement of matter from one
location to another.
d. waves involve the transport of energy from one
location to another.
e. ... nonsense! none of these describe wave motion.
answer:
tap to enter/edit answer.
user mode:
sudden death
progress 25%
health 100%
save & exit help me!

Explanation:

To determine the true descriptions of wave motion:

• Option a: Waves are periodic disturbances (e.g., oscillations) in a medium, so this is true.
• Option b: In wave motion, medium particles vibrate around fixed positions (they don’t travel with the wave), so this is true.
• Option c: Waves transfer energy, not matter (particles stay in place), so this is false.
• Option d: Waves transport energy (e.g., sound, light) from one place to another, so this is true.
• Option e: Is incorrect as a, b, d are valid.

Answer:

a. Waves involve periodic and repeated disturbances of the medium.
b. As waves pass through a medium, particles of the medium undergo a back-and-forth vibration about a fixed position.
d. Waves involve the transport of energy from one location to another.