Finals - Vocabulary

Question 1

is a disturbance that transfers energy from one place to another

Answer 1

wave

Question 2

is any substance that a wave moves through

Answer 2

medium

Question 3

waves that transfer energy through matter

Answer 3

mechanical waves

Question 4

the direction in which the wave travels is perpendicular, or at right angles, to the direction of the disturbance

Answer 4

transverse waves

Question 5

the wave travels in the same direction as the disturbance

Answer 5

longitudinal waves

Question 6

the highest point, or peak, of a wave

Answer 6

crest

Question 7

is the lowest point, or valley, of a wave

Answer 7

trough

Question 8

is the passage of an EM wave through a medium

Answer 8

transmission

Question 9

is the disappearance of an EM wave into the medium

Answer 9

absorption

Question 10

distance from crest to the next crest, or trough to the next trough

Answer 10

wavelength

Question 11

the number of waves passing a fixed point in a certain amount of time

Answer 11

frequency

Question 12

the bouncing back of a wave after it strikes a barrier

Answer 12

reflection

Question 13

is the bending of a wave as it enters a new medium at an angle other than 90 degrees

Answer 13

refraction

Question 14

is the spreading out of waves through an opening or around the edge of an obstacle

Answer 14

diffraction

Question 15

the range of all EM frequencies

Answer 15

electromagnetic spectrum

Question 16

the part of the electromagnetic spectrum that consists of waves of the lowest frequencies

Answer 16

radio waves

Question 17

is the part of the EM spectrum that human eyes can see

Answer 17

visible light

Question 18

the act of noting and recording an event, characteristic or anything detected

Answer 18

observing

Question 19

the process of collecting evidence

Answer 19

investigation

Question 20

a tentative explanation for an observation or phenomenon: an if…then…statement

Answer 20

hypothesis

Question 21

the end of a scientific problem or investigation

Answer 21

conclusion

Question 22

a test, trial or tentative procedure: an act or operation for the purpose of discovering something unknown

Answer 22

experiment

Question 23

what you are trying to solve in a scientific investigation

Answer 23

problem

Question 24

to answer a scientific problem or investigation

Answer 24

solution