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what is kinetic energy
energy of movement
electrical and light energy are both forms of ______
kinetic energy
where does all of the earth's energy come from
the sun
the energy of motion
how many teeth do most adult humans have
32
what is potential energy
energy that is stored in an object or substance
how is electrical energy measured
watts
One of the most common ways to convert stored chemical energy into kinetic energy is through a reaction known as __________
combustion
potential energy
the energy stored in an object or substance
why do things fall when we drop them?
because of gravity
electrical energy moving through a wire is an example of what type of energy
kinetic energy
how is light energy measured
lux
list two examples (from the notes) of how potential chemical energy is converted into kinetic mechanical energy
an old steam locomotive used wooden logs to boil water and drive the steam engine.
the coal-burning navel vessel, the USS George Washington, was powered by steam. The “firemen” stoked the boilers to maintain steam pressure to drive the engine.
international tennis star Novak Djokovic consumes a banana for energy and potassium during a match.
gasoline is added to fuel an internal combustion engine.
a horse feeds on hay to obtain chemical potential energy to pull a cart.
electrical potential energy
the potential energy that exists when comparing a region of high electrical charge to one of low electrical charge
what was the first country to use paper money
China
what is the meaning of the variables in the equation
PE=mgh
PE= potential energy
m=mass
g=gravity
h=height
name 3 types of energy that are examples of kinetic energy
electrical, light, heat
DAILY DOUBLE!
how does a combustion reaction work?
a compound combines with oxygen-producing oxygen-containing products.
chemical potential energy
the potential energy stored in the chemical bonds of chemical compounds
where did the Olympic games originate
Greece
what is the relationship between kinetic and potential energy as a diver jumps off a cliff
top of cliff= all PE
after jump and as he falls= PE--> KE
once he hits the water= all PE has been converted to kinetic
what is moving in electrical energy, light energy, & heat?
Electrical: moving electrons
Light: moving photons
Heat: moving molecules
List the 4 strokes of the 4 stroke combustion engine?
1. intake
2. compression
3. power stroke
4. exhaust
law of conservation of energy
a principle that states that energy is neither created nor destroyed, it simply changes form
who is the first artist to ever have songs filling all of the top 10 spots on the Billboard Hot 100 in a single week
Taylor Swift