Book stuff Flashcards
Speed is affected by
Temperature and air pressure
The hotter the temperature
Faster moving particles
Which medium do sound waves move the fastest in
Solid, because of the arrangement of the particles,
The smaller the distance
The faster they can travel
The speed of sound will differ based on weather…
it is traveling through air, water, or solid.
Sound travels the slowest in
air because the particles are the least dense and cause the wavelengths to be short in the air.
Sound requires
Particles to travel through.
A substance that allows current to flow through with a small electric potential energy loss to heat energy is
A Conductors
negligible
so small or unimportant as to be not worth considering; insignificant.
A substance that current flows through but loses electric potential energy by conversion.
Eg. To heat and light energy.
A resistor
How long has the earth been around?
4.6 million years
More voltage needs to have the same current
equals the globe has more resistance
a catalyst
Speeds up reactions
Refraction is when
Light changes direction as it enters a new meduim, with a different density.
