SCIENCE UNIT 4 VOCAB

Question 1

repeating disturbance that transfers energy as it travels through space or matter

Answer 1

wave

Question 2

distance between one point on a wave and nearest point just like it

Answer 2

wavelength

Question 3

measure of size of disturbance of a wave, related to energy it carries

Answer 3

amplitued

Question 4

measure of size of disturbance of a wave, related to energy it carries

Answer 4

amplitude

Question 5

highest point on a transverse wave

Answer 5

crest

Question 6

denser region of a longitudinal wave

Answer 6

compression

Question 7

lowest point on transverse wave

Answer 7

trough

Question 8

matter through which wave travels

Answer 8

medium

Question 9

horizontal row on periodic table amount of time it takes one wavelength to pass a fixed point, expressed as seconds

Answer 9

period

Question 10

number of wavelengths that pass a fixed point each second, expressed in hertz

Answer 10

frequency

Question 11

a wave that can only travel through matter

Answer 11

mechanical wave

Question 12

wave in which matter in medium moves at right angles to direction of the wave, has crests and troughs

Answer 12

transverse wave

Question 13

wave in which matter in medium moves back and forth along direction move travels

Answer 13

longitudinal wave

Question 14

bending of a wave caused by change in its speed as it travels from one medium to another

Answer 14

refraction

Question 15

less dense region of longitudinal wave

Answer 15

rarefraction

Question 16

bending of waves around a obstacle can also occur when waves pass through narrow opening

Answer 16

diffraction

Question 17

process of two or more waves overlapping and combining to form a new wave

Answer 17

interference

Question 18

process by which an object is made to vibrate by absorbing energy at its natural frequencies

Answer 18

resonance

Question 19

point in standing wave which the interfering waves always cancel

Answer 19

node

Question 20

a wave pattern that forms waves equal wavelengths had amplitude but traveling in opposite directions continuously interfering with each other’s, doesn’t appear to be traveling

Answer 20

standing wave

Question 21

waves created by vibrating electric charges of vibrating electric and magnetic fields, and can travel trough matter

Answer 21

electromagnetic wave