10: pretest 10 electricity
waves and
13. how is information captured in an electronic signal?
magnetic
light
o as patterns in the controlled flow of electrons through a circuit
o as random bursts in the controlled flow of electrons through a circuit
as patterns in the uncontrolled flow of electrons through a circuit

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.