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Science Quiz 3/21

Energy the ability to do work or cause change
Kinetic Energy the energy of motion
Example of Kinetic Energy bowling ball wind pushing a windmill
Potential Energy energy that is stored and held in rediness
Example of Potential Energy a ball at the top of a hill a bow pulled back and ready to shoot
List the Six Forms of Enerygy Thermal Electrical Electromagnetic Nuclear Chemical Mechanical
Example of Thermal Energy wood to make a fire
Example of Electrical Energy energy carried by powerlines
Example of Electromagnetic Energy microwave
Example of Chemical Energy gluecose and gasoline
Example of Nuclear Energy energy in the sun
Example of Mechanical Energy wind and bowling ball
What is the path of energy from the sun to a lightbulb? Nuclear to Electromagnetic (in sun) Electromagnetic to Thermal (in atmosphere) Thermal to Mechanical (wind moves) Mechanical to Electrical (in wind turbine) Electrical to Electromagnetic (in light bulb)
What happens to water that gains energy? It evaporates
What happens to water vapor that loses energy? It condenses and may freeze
What happens when cold water is on top of warm water? The warm water will rise because it is less dense and the cold water will sink. This will cause the water to mix and be a even temperature.
Describe what happens when salt water is ontop of fresh water. Salt water will sink because it is more dense.
Describe what happens when fresh water is ontop of salt water. Fresh water is less dense so it stays on the surface or "floats".
What drives deep water currents? Different densities
What drives surface currents? Winds
What form of energy do we get from the sun? Electromagnetic
What type of heat transfers take place from the sun to our atmosphere? The suns energy heats the ground (radiation) The air molecules touching the ground are heated (conduction) The warm air molecules move up and around, heating the atmosphere (convection)
Wind Horizontal movement of air from areas of high pressure to low pressure.
Is cold air or warm air denser? Cold air
Does cold air or warm air have greater pressure Cold air
Which way will the wind blow? Ocean= 22 degrees Land= 28 degrees From the ocean to the land (sea breeze)
Tornadoe a narrow, violently rotating column of air that extends from the base of a cloud to the ground
What are 5 likely tornado conditions? sping or summer late afternoon after tunderstorm in tornado alley where cold dry and warm moist air meet
Created by: 17brivero