Question

directions: match the terms in column i with the phrases in column ii. write the letter of the correct phrase in the block at the left.
column i

1. wave
2. wavelength
3. frequency
4. refraction
5. diffraction
6. intensity
7. pitch

column ii
a. measured in units called decibels
b. change in direction of a wave when it travels from one material to another
c. transports energy from one place to another
d. how low or high a sound seems
e. measured in units called hertz
f. repeated echoes

Explanation:

1. A wave transports energy from one place to another.
2. Wavelength is not related to the given descriptions in Column II.
3. Frequency is measured in units called Hertz.
4. Refraction is the change in direction of a wave when it travels from one material to another.
5. Diffraction is not related to the given descriptions in Column II.
6. Intensity is measured in units called decibels.
7. Pitch is how low or high a sound seems.

Answer:

1. c
2. No match
3. e
4. b
5. No match
6. a
7. d