Wavs Test

Question 1

Wave

Answer 1

Disturbance that carries energy through water or space

Question 2

Transverse wave

Answer 2

Waves causing the particles of the medium to vibrate perpendicular to the direction the wave is traveling

Question 3

Longitudinal waves

Answer 3

What is causing the medium particles to move parallel to the waves direction of travel

Question 4

Amplitude

Answer 4

Greatest distance a particle is displeased from its normal resting position( trough to dotted line)

Question 5

Crest

Answer 5

Highest point on a transverse wave

Question 6

Trough

Answer 6

Lowest point on a transverse wave

Question 7

Wavelength

Answer 7

Distance between two successive Identical points on wave 

Question 8

Compression

Answer 8

Areas where The medium is squeezed together closet than at equilibrium 

Question 9

Rarefaction

Answer 9

areas where the medium is stretched or expanded farther apart than at equilibrium

Question 10

Refraction

Answer 10

Bending of waves as they pass from one medium to another (pencil in water)

Question 11

Mechanical waves

Answer 11

Waves that require a medium to travel

Question 12

Frequency

Answer 12

Number of wavelengths that pass a point in 1 second

Question 13

Electromagnetic waves

Answer 13

Waves caused by electric and magnetic fields that do NOT require a medium

Question 14

Reflection

Answer 14

The bouncing back of a wave as it meets a boundary or surface (mirror)

Question 15

Constructive interference

Answer 15

When waves combine to create a bigger wave

Question 16

Diffraction

Answer 16

The bending of waves around an edge or barrier

Question 17

Destructive interference

Answer 17

When waves combine to form a smaller or no wave

Question 18

Medium

Answer 18

Matter through which a wave travels

Question 19

Example of electromagnetic waves

Answer 19

Radio waves , microwaves, X-rays , gamma rays

Question 20

Waves carry ______

Answer 20

Energy

Question 21

Example of mechanical waves

Answer 21

Seismic waves, sound waves

Question 22

Bigger waves carry MORE or LESS energy

Answer 22

More

Question 23

Vibrations involve a transformation of energy generally between ….?

Answer 23

Potential and kinetic

Question 24

Draw label transverse wave

Answer 24

S-shaped wave
LABEL: crest trough amplitude wavelength

Question 25

Draw label compression wave

Answer 25

Lots of circles/ coils
LABEL: compression rarefaction wavelength

Question 26

Sound moves —-?

Answer 26

Faster through : solids, liquids
Slower through : air/ gases

Question 27

Why is an echo softer than the original sound ?

Answer 27

When sound echoes, it travels a longer distance and reflects off surfaces, which causes it to lose energy and become softer than the original sound.