P3.2 - Heat & Sound

Question 1

Wavelength

Answer 1

The distance from one crest to another, or from one trough to another of a wave

Question 2

Absorb

Answer 2

Take in or soak up

Question 3

Conduction

Answer 3

The process by which heat or electricity is directly transmitted through the material of a substance

Question 4

Constructive interference

Answer 4

Where the resultant wave is bigger than either of the two original

Question 5

Convection

Answer 5

The movement caused within a fluid by the tendency of hotter and therefore less dense material to rise

Question 6

Decibel

Answer 6

A way of measuring how loud something is

Question 7

Destructive interference

Answer 7

Two waves of equal frequency

Question 8

Frequency

Answer 8

The rate per second of a vibration constituting a wave

Question 9

Hertz / Hz

Answer 9

A unit of frequency, equal to one cycle per second

Question 10

Subsonic

Answer 10

Relating to or flying at a speed or speeds less than that of sound

Question 11

Vacuum

Answer 11

A space without matter or air