energy

energy

the ability to do work

pendulum energy conversion

potential energy to to kinetic energy over and over again until the small amount of energy is lost to heat and air resistance and the pendulum stops

explain the difference between a producer (autotroph) and consumer (heterotroph)

a producer produces its own food and a consumer eats food from a producer

producer/autotroph

produces and creates their own food, generates energy from the sun, water and carbon dioxide

explain the energy transformation that occurs during photosynthesis

radiant/light energy is converted into chemical energy in the form of glucose

explain where and how energy enters a food chain and how it changes up the food chain

energy is transferred from the producer/autotroph and is then transferred between organisms where 10% of the energy is given to the next trophic level and the rest is turned into heat

explain how a turbine is used to generate electricity

the wind turns the blades, which spins a shaft inside the hub that's connected to the generator and creates electricity

nuclear power

from steam, non renewable, reliable energy source, radioactive waste, risk of nuclear accidents, zero carbon emissions, high energy density

energy formula

symbol: J, units: joules, W = F x D

chemical energy

is stored within the connections and bonds between molecules, when the bonds are broken energy can be released, examples: coal, gasoline, natural gas released by combustion, energy in glucose is released through cellular respiration

electrical energy

energy from moving electrons, when the electrons pass through certain devices they can transfer the energy over to the device

radiant energy

form of energy associated with the movement of light, electromagnetic waves or particles, includes visible light and invisible light like x-rays, captured by solar panels and plants and can be converted into other forms of energy

mechanical energy

energy possessed by an object because of it's movement or position, object gains mechanical energy when it has the ability to do work due to it's position or motion, take the form of either kinetic energy potential energy

nuclear energy

the energy released in nuclear reactions when the nucleus of atoms are split or fused

thermal energy

heat energy, the energy of moving or vibrating molecules

primary consumers

eats only producers

secondary consumers

eats both primary consumers and producers

tertiary consumers

eats secondary consumers and primary consumers

herbivores

primary consumers, cow, rabbits, elk

omnivores

badgers, squirrels, hedgehog

carnivores

lion, wolf, leopard

consumers

heterotrophs

solar power

from light/sun, renewable, little risk to environment, clean energy, expensive, weather dependent, maintenance isn't pricey

tidal energy

from waves, renewable, reliable source, damages marine life, impact aquatic eco systems, high energy density, expensive

power formula

symbol: W, units; watts, P = E / t

rate formula

symbol: r, units: rate

cost formula

symbol: c, units: $, c = e (energy) x r

efficiency formula

E = output/input x 100%