science exam

Question 0

mechanical waves

Answer 0

waves that use matter to transfer energy

Question 1

wave

Answer 1

repeating disturbance that transfers energy through matter or open space

Question 2

medium

Answer 2

matter through which a mechanical wave travels

Question 3

transverse waves

Answer 3

matter in the medium moves back-and-forth at right angles to the direction it travels

Question 4

compressional waves

Answer 4

matter in the medium moves forward and backward in the direction the wave travels

Question 5

what kind of waves are soundwaves?

Answer 5

compressional waves

Question 6

why can’t soundwaves travel in outerspace?

Answer 6

because they are mechanical waves

Question 7

rarefaction

Answer 7

The region of a compressional wave where particles are far apart

Question 8

electromagnetic waves

Answer 8

do not require matter to carry energy

Question 9

amplitude

Answer 9

measure of the energy in a wave

Question 10

wavelength

Answer 10

distance from crest to crest in a transverse wave

Question 11

frequency

Answer 11

how many wavelengths pass a fixed point each second

Question 12

compression

Answer 12

A group of molecules that are squeezed together

Question 13

reflection

Answer 13

occurs when a wave strikes an object and bounces off of it

Question 14

normal

Answer 14

an imaginary line perpendicular to the surface of the medium where wave strikes it

Question 15

diffraction

Answer 15

when waves bend around a barrier

Question 16

refraction

Answer 16

The bending of a lightwave as it moves from one medium into another

Question 17

interference

Answer 17

process in which two waves overlap and form a new wave

Question 18

destructive interference

Answer 18

when the crest of one wave overlaps the trough of another wave

Question 19

constructive interference

Answer 19

when the crest of one wave overlaps the crest of another wave