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40 questions
What kind of energy is in food?
Thermal energy
Chemical energy
Nuclear energy
Mechanical energy
energy transformation in a flashlight
electrical to chemical to light
chemical to electrical to light
renewable resources
coal, petroleum, propane, nuclear, natural gas
solar, wind, hydropower, geothermal, biomass
nonrenewable resources
coal, petroleum, propane, nuclear, natural gas
solar, wind, hydropower, geothermal, biomass
Energy transformation - Solar panel to playing a radio and fan
light, electrical, mechanical and sound
chemical, mechanical, light, sound
Highest potential
highest position
lowest position
Fossil fuel
nuclear, biomass wind and coal
oil, coal, petroleum, propane and natural gas
Which of the following converts chemical energy to light and thermal energy?
candle
light bulb
coal power plant
nuclear power plant
Which of the following is a fossil fuel?
Wind
Oil
Solar
Biomass
What is the definition of CONDUCTION?
When heat is transferred from objects like rays of light or electromagnetically.
a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.
When heat transfers through solids that are touching.
When heat transfers through the heater or AC in your house.
What is the definition of CONVECTION
When heat transfers through waves.
When heat transfers from objects that are touching.
When heat transfers due to density differences.
Heat traveling from the sun
What happens when light hits a shiny or smooth surface?
it's transmitted
it is absorbed
it is reflected
What happens when light hits a dark, rough, or dull surface?
it's transmitted
it is absorbed
it is reflected
Conduction = energy transferred in (solids, liquids, gases) by (direct, no direct) contact
solid, direct
liquid and gas, no direct
liquid and gas, direct
solid, no direct
Radiation = energy transferred by (molecules, waves)
waves
molecules
Best reflector = (light, dark, smooth, rough), ex (snow, ice, forest)
light, smooth, snow, ice
dark, rough, forest
light, rough, snow, forest
Best absorber = (light, dark, smooth, rough), ex (snow, ice, forest)
light, smooth, snow, ice
dark, rough, forest
light, rough, snow, forest
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