Energy Sources
Heat energy generated from core of the Earth
Geothermal energy
The unit of measurement for energy
joules (J)
What are fossil fuels made of?
The remains of ancient Organisms (Organic Materials)
True or False: Renewable energy sources are limited by their availability
True
Kinetic Energy
Energy from the sun received by the Earth in the form of radiation
Solar energy
The greatest source of energy
The sun
Name the THREE fossil fuels
Coal, Natural Gas, and Petroleum
Turbines, or mills, are used to produce alternative energy and are powered by ________.
wind
If you want to increase the gravitational potential energy of an object you would ____________
Raise the height of the object
Energy generated from moving water
Hydroelectric energy
Many photovoltaic cells put together make up ______ ______
solar panels
False
Energy from moving air
Wind Energy
Heat moves from an object with _____ temperature to an object with ____ temperature
High, low
It is evaporating into a gas, no matter is being lost
They can be replanted as they are being cut down, replaced at the same rate they are being used
When a rubber band is stretched its ________ potential energy is increased
Elastic
Energy from organic material
Biomass
Explain a convection current
When a hot liquid/gas rises above cooler liquid/gas and cooler liquid/gas sinks below hot liquid/gas
A hot air balloon lifts from the ground and flies through which energy process
Convection
Chemical