Flashcards in General Deck (22)
Newton's 1st law?
objects with balanced forces acting on them will remain in constant motion or remain at rest
Newton's 2nd law?
Newton's 3rd law?
for every action there is an equal and opposite reaction
As you go down the wave spectrum....
they have higher energy
when q wave passes through a small gap and bends
When a wave passes from one medium into another medium of a different density, and changes direction slightly
Angle of incidence =...
angle of reflection
primary waves, longitudinal, go through solids and liquids
secondary waves, transverse, only travel through solids
Convex lens.... (4)
- real image
- corrects longsightedness
- upside-down image
Concave lens.... (4)
- corrects shortsightedness
- virtual image
Visible light spectrum?
As you go down the visible light spectrum....
perfectly absorbs all radiation that hits it
Transformer equations? (2)
Vs x Is = Vp x Ip
Vp/Vs = turns P/turns S
passing a wire through magnetic field lines to generate a current
Sun = .... generation star?
second - because contains heavy elements (eg iron) so must have formed from dust and gas left over from supernova
anything orbiting the Earth
increase in wavelengths of light coming from starts = moving further away
decreasing wavelength of light coming from stars = getting closer