SCIENCE 2 Flashcards
1
Q
What is a wave?
A
A wave is a disturbance that carries energy
2
Q
Highest part of a wave
A
crest
3
Q
lowest part of a wave
A
trough
4
Q
distance between the equillibrium to the crest/ trough
A
amplitude
5
Q
Distance between two consecutive wave
A
wavelength
6
Q
who proved the existence of radiowaves?
A
HEINRICH HERTZ 1877
7
Q
WHAT DID ALBERT EINSTEIN DISCOVER?
A
discovered the PHOTOELECTRIC EFFECT
8
Q
who is WG?
A
William Gilbert (1603)
Discovered earth was magnetic
Theorized electricity & magnetism are not the same
9
Q
who is HCO
A
Hans Christian Oersted (1820)
Discovered electricity could produce magnetism
10
Q
WHO IS JH
A
Joseph Henry (1831)
Discovered electromagnetic induction
11
Q
WHO IS WEW
A
Wilhem Eduard Weber (1856)
Discovered that light is an electromagnetic wave
12
Q
what is concave?
A
Bulges aways from the light source
13
Q
A
