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science - 10 > Physics test #1 > Flashcards

Physics test #1 Flashcards

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1
Q

electromagnetic spectrum

A

the range of all tpes of EM radiation

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2
Q

EM radiation

A

form of energy that travels in waves

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3
Q

wavelength

A

the distance between wave peaks

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4
Q

frequency

A

the # of waves per unit of time

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5
Q

energy

A

the amount of energy the radiation carries

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6
Q

Incandescence

A

light produced by an object that id at a high tempature

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7
Q

light through electric discharge

A

produced when electricity passes through gas

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8
Q

fluorescence

A

light produced by phosphor that immediately converts UV radiation into visible light

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9
Q

phosphorescence

A

light produced by phosphor that converts uv radiation into visible light for long periods of time

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10
Q

luminescence

A

light produced by movement of electrons

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11
Q

chemiluminescence

A

movement during chemical reactions

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12
Q

bioluminescence

A

movement during chemical reactions in living things

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13
Q

triboluminescence

A

movement due to friction, pressure and mechanical shock

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14
Q

electroluminescence

A

movement due to a passing electric current

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15
Q

vacuum

A

empty space

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16
Q

transmission

A

travels through

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17
Q

absorption

A

energy is transferred

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18
Q

reflection

A

‘bounces’ off

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19
Q

transparent

A

lets all the light pass through

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20
Q

translucent

A

lets some light pass through

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21
Q

refraction

A

bending of light during transmission

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22
Q

dispersion

A

splitting of light into seven different colours (rainbow)

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23
Q

mirage

A

optical phenomena that makes objects appear where they are not usually located

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24
Q

plane mirror

A

flat reflective surface

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25
Q

incident ray

A

ray of light that travels away from mirror

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26
Q

reflected ray

A

ray of light that travels away from mirror

27
Q

angle of incident

A

angle between incident ray and normal ray

28
Q

angle of reflection

A

angle between reflected ray and normal

29
Q

periscope

A

optical device that allows the usser to see over/around obstacles

30
Q

solar cooker

A

a device that is uses reflective properties of plane mirrors to cook food

31
Q

curved mirror

A

curved reflective surface

32
Q

convex mirror

A

inside of sphere

33
Q

concave mirror

A

outside of sphere

34
Q

vertex

A

point at the middle of mirror

35
Q

principle axis

A

line connecting C and V

36
Q

focal point

A

Distance between V and F

37
Q

radius of curvature

A

Distance between V and F

38
Q

Who is Ole Røemer

A

a danish scientist who was the first person to measure the speed of light

39
Q

who is Justus van Leibig

A

a german chemist of invented mirrors

40
Q

Euclid

A

a greek mathematician who described the law of reflection

41
Q

examples of EM radiation

A

radiowaves
microwaves
infrared
visible
UV
x-rays
Gamma rays

42
Q

what are the properties of EM

A

wavelength
frequency
energy

43
Q

what does a short wavelength mean

A

high frequency, high energy

44
Q

what does the long wave length mean

A

low frequency, low energy

45
Q

what is the equation for magnification

A

m = hi/ho = di/do

46
Q

example of Incandescence

A

incandescence light bulb

47
Q

example of light from electric discharge

A

lightning, neon signs

48
Q

example of fluorescence

A

highlighter ink

49
Q

example of phosphorescence

A

glow in the dark stars, watch dial

50
Q

sub catagories for luminescence

A

chemiluminescence
bioluminescence
triboluminescence
electroluminescence

51
Q

example of chemiluminescence

A

glow sticks

52
Q

example of bioluminescence

A

fireflies

53
Q

example of triboluminescence

A

crushing sugar cubes

54
Q

example of electroluminescence

A

LED lights

55
Q

facts about the speed of light

A

light can travel 300,000,000 m/s in a vacuum
can go slower
can’t go faster

56
Q

facts about transmission, absorption, reflection

A

all three of these things can happen when light goes through materiel

57
Q

transmission

A

occurs when matter is translucant or transparents
- refractions
- dispersion

58
Q

absorption and reflection

A
  • occurs when matter is translucent or opaque
  • determines colour of matter
  • ex. blue absorbs ROY G IV, reflects blue
  • black absorbs ROY G BIV, reflects none
  • white absorbs none, reflects ROY G BIV
59
Q

properties and optical phenomena (rainbow)

A

when light meets a raindrop the light is refracted and then dispersed into seven different colours

60
Q

properties and optical phenomena
(mirage)

A

the bending of light (refraction) when light passes through two layers of air with different temperatures

61
Q

SALT in plane mirrors

A

S -same
A - Inverted laterally
L - behind, same
T - virtual

62
Q

SALT in convex mirrors

A

S- smaller
A- inverted vertically
L - behind closer
T - virtual

63
Q

SALT in concave mirrors

A

S- same, larger, smaller
A - inverted laterally or vertically
L - behind, infront, closer, further,
T - virtual or real or none

science - 10 (5 decks)

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