When the car moves and makes a sound that is louder that when the car is just sitting there
Light waves can be from any color, depends on what it is bouncing no or reflecting off of.
Heliocentric model. It is the model where the sun is it the middle. and the planets are orbiting the sun like this (in order from shorter to longer). Mercury,Venus,Earth,Mars,Jupiter,Saturn,Uranus,and Neptune.
