vocab
the ability to do work
What is energy?
energy in motion
What is kinetic energy?
energy that exists but is not being used
an effort to use less energy and seek out sustainable energy sources
What is conservation?
energy sources that are sustainable because they can easily be renewed
What are renewable energy sources?
energy cannot be created or destroyed but can change from one form to another
What is the Law of Conservation of Energy?
the colors of the wavelength that are visible to the human eye
What is the visible light spectrum?
when magnets and electrical currents interact
What is electromagnetism?
pressure caused by vibration traveling through a medium such as air
What are sound waves?
a magnet created by running electricity through a copper wire wrapped around a core of material that can be magnetized
What is an electromagnet?
a state of balance between opposing forces or actions
What is equilibrium?
the rate at which electrons move through a circuit as caused by the voltage
What is a current?
a complete electrical path
What is a circuit?
energy sources that are sourced from the earth and can and do run out
What is nonrenewable energy?
a magnetic force surrounding something, such as the earth
the act of quickly moving back and forth
What is vibration?
an object that retains its magnetism after being magnetized
What is a permanent magnet?
What is thermal energy?
materials that allow the flow of heat
What are conductors?
an imbalance of positive and negative charges in an object
What is static electricity?
material that resists the flow of heat
What are insulators?
the transfer of heat by direct contact
What is conduction?
the transfer of heat through empty space by electromagnetic waves (such as in the microwave)
What is radiation?
a type of heat transfer that occurs from movement in gases and liquids
What is convection?
when light passes into another material with different density and bends the light (such as a prism)
What is refraction?