Science - waves

Question 1

Amplitude

Answer 1

the distance from the middle to the top of the wave

Question 2

wavelength

Answer 2

The distance between a point on a wave to the same point on a different wave

Question 3

trough

Answer 3

The bottom of a wave

Question 4

Peak

Answer 4

The top of the wave

Question 5

frequency

Answer 5

How many waves pass a fixed point in a second

Question 6

Hertz

Answer 6

frequency is measured in Hertz

Question 7

Ultrasound

Answer 7

Soundwaves above 20,000 (Hz) too high for humans to hear

Question 8

Robert Boyle

Answer 8

1627-1691
Proved that sound needs air to travel through
put an alarm in a vacuum chamber, when he sucked the air out it eventually went quiet

Question 9

Alexander Graham Bell

Answer 9

1847-1922
invented the telephone using electrical undulations to transmit sound waves

Question 10

Transverse

Answer 10

ex. light
travel at a 90° angle to the direction of thee energy transfer

Question 11

longitudinal

Answer 11

ex. sound
Travels in the direction of energy transfer
Needs a medium to travel through

Question 12

Law of Reflection

Answer 12

The angle of incident will be equal to the angle of reflection

Question 13

What is the order of EM waves ?

Answer 13

Radio waves, microwaves, infrared, visible light, ultra violet, X-rays, Gamma Rays