P1 Flashcards

1
Q

Heat is a measure of

A

Energy

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2
Q

temperature is a measure of

A

hotness

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3
Q

specific heat capacity tells you

A

how much energy something can store

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4
Q

Energy=

A

mass x Specific heat capacity x temperature change

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5
Q

you need to put in …………… to break intermolecualr bonds

A

energy

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6
Q

Specific latent heat is the

A

energy need to change state

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7
Q

energy=

A

Mass x Specific latent heat

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8
Q

Conduction occurs in

A

mostly in Soids

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9
Q

convection occurs in

A

liquids and gases

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10
Q

………… is how we get heat from the sun

A

radiation

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11
Q

all objects emit and absorb ……………..

A

heat radiation

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12
Q

………………… is important in cooking

A

Heat radiation

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13
Q

insulating your house save …………and ………………..

A

money and energy

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14
Q

thermograms show where your house is

A

leaking heat

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15
Q

………..always waste some enrgy

A

Machines

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16
Q

More……….. efficient maschines waste less energy

A

Efficient

17
Q

Efficiency=

A

Usefull energy OUTPUT
———————————– (x100)
Total energy Input

18
Q

The ………….. of the arrow represents the amount of energy

A

Thickness

19
Q

Waves have

A

Amplitude,Wavelenth and frequency

20
Q

Wave speed=

A

frequency X wavelength

21
Q

All waves can be

A

Reflected,refracted and diffracted

22
Q

……………. of light lets us see things

A

Reflection

23
Q

angle of incidence=

A

Angle of reflection

24
Q

total internal reflection depends on the……………

A

Critical angle

25
Q

Diffraction =

A

waves spreading out

26
Q

refration=

A

changing speed of wave changes its direction

27
Q

there are … types of electromagnetic wave

A

7