Energy Sources
Wood, crops, & animal wastes are all examples of which type of energy resource?
(this was a part of our table notes on energy resources)
Biomass
Energy found in the nucleus of an atom is referred to which type of energy?
Nuclear Energy
The Law of Conservation of Energy states that energy cannot be _____________ or______________.
created or destroyed
What causes hydroelectric dam blades to spin?
*there are two possible answers
the force of the moving water
kinetic energy from the water is transferred to the blades
Describe conduction in reference to heat transfer.
Give an example.
Conduction is the transfer of heat through touch.
Ironing your clothes.
Which energy resource is a fossil fuel that formed from plant/animal remains from many years ago?
Coal
The ability to do work is the definition for this word.
Energy
Energy cannot be created or destroyed but it CAN _____________ _____________.
change form
Energy stored behind a dam wall is which type of energy?
Gravitational potential energy
Describe radiation in reference to heat transfer.
Give an example.
Radiation is the transfer of heat energy through open space.
Standing near a camp fire.
This energy resource is normally in a gas state & is safe for indoor use.
Propane
This is a fossil fuel that is also called "oil" or "crude oil" and is a fossil fuel.
Petroleum
If you are riding a bike down a hill, what is one type of energy that is at work? (there are two correct answers)
gravitational and mechanical
Two objects with different masses are moving at the same speed. Which has more energy?
The object with more mass has more energy.
Describe convection heat transfer.
Give an example.
Transfer of heat energy through liquids or gases.
Boiling water.
Energy from the force of moving water is called _______________.
Hydro-power
This type of energy is caused by uneven heating of Earth's surface.
Wind Energy
When you lift an item from the floor to above your head, are you increasing potential energy, decreasing potential energy, or keeping the potential energy constant?
increasing potential energy
Why are renewable energy resources important?
*there are 3 good reasons
They cause less damage to the environment.
They won't run out like fossil fuels will.
They reduce the amount of greenhouse gases released into the atmosphere.
Describe the relationship between kinetic energy & mass.
As mass increases, kinetic energy increases non-linearly.
Energy that is described as heat from within the Earth is ____________.
Geothermal
The Sun is an example of this type of energy.
HINT: the Sun uses nuclear fusion
Nuclear Energy
What are two ways we can increase the gravitational potential energy of an object?
increase the object's mass
move the object to higher ground/higher off the ground
Explain the meaning of "energy efficiency."
It's a measure of input energy transformed into useful energy.
Describe net zero emissions.
This is when greenhouse gases released into the atmosphere are equal to those removed from the atmosphere.