によって Jack Thomsen 7年前.
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mass in motion
EX: your car moving
change in momentum
Ex: your car moving in one direction and a bug going towards your car hits your window
ex: when you kick a ball up in the air and when it comes back down that is because gravity is pulling it down.
1`
Kinetic+ potential + thermal
energy realesed from friction
possible energy at a certain point
Skatebord makes this when stopped
Energy in motion
Ex: skateboard in motion
For every force there is an equal/oppstite reaction force
Force = Mass X Acceleration
force=newtons
law of inertia
Forces balanced /Object\ rest motion / \ stays stays
A body in stays in motion unless acted upon
Evidence: This is like when you slam on your brakes and your seat belt saves you from slamming into the front dash
amplitude
amount of energy in a wave
constructive interfernce
amplify each other
how high or low a sound is
cilia
cochlea
Three bones
ear drum
auditory cannal
Pinna
ex. when you throw a rock into the water and the water starts to ripple
the light traveling past a person appears redder than if it was traveling towards you which would be bluer
One exapmpel for this is a regular magnet. you can used this to hang stuff on the fridge. People at junk yards use really strong magnets to pick up cars to put them into the crusher
Only flows in one direction
Safer
Used for DC motors
electric current that reverses its direction many times a second
people didnt know alot about AC so they didnt know how to use it and control it
Usally used for power supplys
Exaple would be for a power house to supply energy to the city
