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physics the entire chapter > physics secondary 3 last fight > Flashcards

physics secondary 3 last fight Flashcards

i m on the losing end

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1
Q

what is a wave

A

a wave is a disturbance propagates with space that transfer the same amount of energy but not the matter

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2
Q

what is motion of moving up and down to the original for a single segment

A

this motion is called a periodic or cyclical

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3
Q

what is a wave front

A

a wave front is an imaginary line that joins all the adjacent points such as crest ,trough , and in phase called a wave front

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4
Q

what happens to the water using a dipper up and down

A

a series of circular ripples are produced

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5
Q

what happen to the water using a straight flat strip

A

a series of straight ripples are produced

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6
Q

repeated periodic motion

A

an oscillation

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7
Q

transverse

A

a transverse wave a direction of waves that is perpendicular to the direction the wave travels

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8
Q

a longitudinal

A

a longitudinal wave is a direction of vibrations that is parallel to the direction of the wave

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9
Q

what is the only wave that is longitudinal

A

soundwave

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10
Q

what is an amplitude

A

the amplitude is the maximum magnitude of displacement to the rest position

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11
Q

displacement

A

displacement is like any point of the wave this is away from the rest point [displaced from rest position ]

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12
Q

crest

A

the crest is the highest point in the transverse wave

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13
Q

trough

A

the trough is the lowest point of the transverse wave

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14
Q

in phase

A

in phases are 2 points that going in the same direction of motion
all troughs are in phase and all crest are in phase

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15
Q

wavelength

A

a wavelength is shortest distance between 2 trough or 2 crest

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16
Q

what is the shape of the wave called

A

waveform

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17
Q

period

A

period is the time taken by each point of a wave to complete one oscillation

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18
Q

frequency

A

the frequency is the number of oscillation produced within one second

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19
Q

formula of frequency

A

1/ [the time taken to complete one oscillation]

20
Q

s.i unit for frequency

A

herds

21
Q

to find wavelength

A

speed x time
speed x period= wavelength

22
Q

wave speed

A

the wave speed is the distance travelled per time unit

23
Q

what is the wave speed affected by

A

the properties of the medium like the thickness or the tension

24
Q

what happens to frequency after the medium changes

A

nothing it remains the same

25
Q

what is internal energy

A

internal energy is the total amount of kinetic energy associated with the random motion of the particles and the total amount of potential energy in between the particles

26
Q

heat capacity

A

heat capacity is the change internal energy in an object per change in unit temperature

27
Q

formula for heat capacity

A

C= q/0L
the q is the change internal energy
ol is the change in the temperature

28
Q

specific heat capacity

A

the specific heat capacity is the change in internal energy per unit mass for each change in unit temperature

29
Q

formula of specific heat capacity

A

c= C/m or q/0l x m
c- specific heat capacity
C heat capacity
m mass
q change in internal energy
0l change in temperature

30
Q

melting

A

melting is the change of state from a solid state to a liquid state through energy being transferred into the object

31
Q

freezing

A

freezing is the process of change of state from a solid state to liquid state as energy is transferred out of the object

32
Q

boiling

A

boiling is a change of state from a liquid to gaseous state where energy is transferred into the object

33
Q

condensation

A

condensation is change in state from a gaseous to liquid state when energy is transfer out of the object

34
Q

evaporation

A

all particles all move at constant motion at different speed the particles at the surface gain energy transferred from the atmosphere the particles start to move more vigorously and soon they gain enough energy to escape into the atmosphere leaving the particles of lower kinetic energy causing the over energy to decrease and therefore it becomes cooler

35
Q

factors that affect evaporation

A

boiling point the lower the boiling point the greater rate of evaporation as there is weaker force of attraction to overcome easily

the humidity the greater the amount of water vapor in the atmosphere the lower the rate of evaporation as there is a less steeper the water potential gradient

surface area as the greater the surface area the greater the rate of evaporation so more particle can be at the surface and gain energy

wind speed the greater the rate of wind speed greater rate of evaporation as it decrease humidity

pressure the greater the pressure the lower the rate of the evaporation as less molecules escape

as the temperature increase the rate of evaporation increase

36
Q

latent heat

A

latent heat is the amount of heat needed to be absorbed or released for an object to change its state of matter

37
Q

s.i unit latent heat

A

joules

38
Q

what are the 2 type of latent heat

A

latent heat of fusion which is the change in state between solid and liquids and latent heat vapourisation which is the change of state between liquid and gas

39
Q

latent heat of fusion

A

latent heat of fusion is the total energy transferred to achieve a state from solid to liquid at constant temperature

40
Q

specific latent heat of fusion

A

specific latent heat of fusion is the amount of energy to transfer needed to go from solid to liquid per unit mass at a constant temperature

41
Q

formula

A

L = l / m
L specific latent heat of fusion
l latent heat of fusion
m mass

42
Q

latent heat of vapourisation

A

latent of vapourisation is the amount of energy needed to transferred changing from a state of liquid to gas at constant temperature

43
Q

specific latent heat of vapourisation

A

which is the total energy needed to be transferred to achieve liquid to gas per unit mass at a constant temperature

44
Q

heating curve opposite

A

cooling curve

45
Q

solidification

A

during solidification the ratio of liquid to solid increases as the temperature is constant

46
Q

condensation

A

during condensation the ratio of gas to liquid increases as the temperature remains constant

47
Q
A

physics the entire chapter (4 decks)

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