Energy
produces change and does work
Energy
produced when matter vibrates
Sound
energy that travels in electromagnetic waves
Radiant energy
transfer of heat by electromagnetic waves
radiation
energy resources that are never used up or can be replaced in a short amount of time
renewable resources
Name a non-renewable energy resource
Fossil fuels, coal, oil, uranium
energy of motion
kinetic energy
the highness or lowness of a sound
pitch
electromagnetic waves that allow us to see objects
Visible light
transfer of heat by direct contact
conduction
energy resources that cannot be replaced for millions of years
non-renewable energy
Solar panels are used to provide electricity. What is the source of the energy
sun
stored energy waiting to produce change and to do work
potential energy
The faster an object is moving, the ______ its kinetic energy.
greater
describes matter that allows light waves to pass through
transparent
transfer of heat by movement within a fluid
convection
What is the main source of the Earth’s radiant energy
sun
if I place a pencil in a glass of water. The pencil in the water looks broken because—
light waves are refracted.
potential energy stored in an object that has been stretched or compressed by force
Elastic Potential Energy
If two objects are moving at the same speed, the object with more mass has _______ kinetic energy.
more
describes matter that allows only some light waves to pass through
translucent
matter that allows heat to be transferred easily
conductor
Which color does an object appear if it reflects all light waves
white
Name two renewable resources
Solar energy, wind energy, hydropower or moving water, geothermal energy
potential energy stored in matter because of the pull of gravity.
Gravitation potential energy
What are two ways to increase the kinetic energy of an object?
Mass and Speed
bending of light waves
refraction
matter that transfers heat slowly
insulator
How does heat flow from one substance to another
Heat flows from a warmer substance to a cooler substance.
Garbage is an example of?
Biomass