Energy Flashcards
what are the 9 types of energy?
kinetic, electrical, heat, light, sound, nuclear, gravitational, elastic, chemical
what are the 5 active energy’s
electrical, sound, kinetic, heat, light
what are the 4 potential energy’s
gravitational, energy, elastic, chemical
how does the size of particles affect the rate of reaction?
Smaller particles diffuse faster, bigger ones diffuse slower.
define diffusion
the random movement of particles that causes them to spread out and mix
what is the formula used for efficiency?
efficiency= useful/total x 100
what is energy measured in?
joules ( J )
what factors affect the quantity of heat energy in a substance
mass, temp, and types of atoms.
Describe what happens to the temp, energy, and particles during melting
Particles gain energy but the energy is used to weakedn the forces between particles. The speed of the particles don’t change, and neither dose the temp. Particles start sliding
Describe what happens to the temp, energy, and particles during heating of a liquid
Particles slide over each other, they gain energy as they slide faster. Temp increases due to the average speed of the particles
Describe what happens to the temp, energy, and particles during boiling
Particles gain energy but the energy is used to break the forces between particles. Speed of particles dont change and same for temp
what are 3 types of heat transfer?
conduction, convection, radiation,
where does convection occur?
liquids and gases (fluids)
where does conduction occur?
solids
where dose radiation occur?
they transfer heat without particles, particles only slow down radiation but don’t stop it. so they are able to travel in vacuums, solids, liquids, and gasses.
