p1 Flashcards

1
Q

what is the order of waves in increasing frequency

A

radio
micro
infared
visible
ultraviolet
x-ray
gamma ray

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is the electro magnectic spectrum

A

this is a continuous range pf electric waves it is called the elctromagnetic spectrum because all of the wavesit contains an elctric feild nd a magnetic feild that ocisilates.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what speed do the waves tarvel at in a vacume what is it called

A

all electromagnetic waves travel at the same speed in a vacume this is called the speed of light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what is the speed of light

A

3x10 to the power of 8 meters per second

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

in order of frequency which is the highest and whihc is the lowest

A

gama
xray
ultravilot
visible
infared
micro wave
radio wave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what is the top of a wave called

A

the peake

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is the distance from the top or bootom of a wave to the centeer line called

A

the amplitude

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is the distance from peake to peak of a eave called

A

the wavelength

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is the base of the wave called

A

trof

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

whata re the two types of waves

A

transverse and longitudinal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is an example of a longitudinal wave

A

siesmic p wave and an ultra sound

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what is an example of a transverse wave

A

electromagnetic waves
seismic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what angle is the dirction of osiliaition in a transverse wave

A

90 degrees

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what does absorbe mean

A

taking something in

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what is white light

A

this is where are all colours are put together for exampel the sun is white light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

why might some things obsorbe colours and why migh something reflect colours

A

this depends on the wave length of something. atoms haviing electrons that are arranged at different distances from the nucleus. These arrangements may change with absobtionemmisissons of elctro magnetic raidiaition and atoms can become ions by loss of outer electrons

17
Q

what are the different tyepes of ionising raidiation

A

uv
xray
gama

18
Q

what can ionising raidiation do

A

they can remove elctrons from atoms

19
Q

what hppens when an em wave is trying to be asorbed

A

when an em wave hots an electron it gains energy and moves it to a higher energy levle. The Em wave is the absorbed

20
Q

what happens whehn an Em wave is being emited

A

when electrons fall down a energy levle they loose enrgy this is given out as an em wave. which is the emitted

21
Q

wwhat can ionising raaidiation cause to the body

A

it can cause cancer
it can also cause DNA mutaitions

22
Q

what is infared raidiation

A

it is heat

23
Q

what do greenhouse gases do

A

they prevent infared rasiaition being refelctyed thereofr gradually increasing the temperature to increase

24
Q

what is reflection

A

when light bounces off a surface of a material

25
Q

what is the incident ray

A

the incedent ray is the ligjt or wave being projected onto a surface

26
Q

what is the angle of incedence

A

this is the angle at whihc the light or wave came in at before being reflectedd

27
Q

what is the reflected ray

A

this is the ray which has now been reflected off of the surface

28
Q

what is the angle of reflection

A

this is the angle at which the ray has left the reflectable surface

29
Q
A