P1 Flashcards
Heat is a measure of
Energy
temperature is a measure of
hotness
specific heat capacity tells you
how much energy something can store
Energy=
mass x Specific heat capacity x temperature change
you need to put in …………… to break intermolecualr bonds
energy
Specific latent heat is the
energy need to change state
energy=
Mass x Specific latent heat
Conduction occurs in
mostly in Soids
convection occurs in
liquids and gases
………… is how we get heat from the sun
radiation
all objects emit and absorb ……………..
heat radiation
………………… is important in cooking
Heat radiation
insulating your house save …………and ………………..
money and energy
thermograms show where your house is
leaking heat
………..always waste some enrgy
Machines
More……….. efficient maschines waste less energy
Efficient
Efficiency=
Usefull energy OUTPUT
———————————– (x100)
Total energy Input
The ………….. of the arrow represents the amount of energy
Thickness
Waves have
Amplitude,Wavelenth and frequency
Wave speed=
frequency X wavelength
All waves can be
Reflected,refracted and diffracted
……………. of light lets us see things
Reflection
angle of incidence=
Angle of reflection
total internal reflection depends on the……………
Critical angle
Diffraction =
waves spreading out
refration=
changing speed of wave changes its direction
there are … types of electromagnetic wave
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