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What’s heat energy
The energy in. Moving atoms and molecules (group of atoms).
Thermometer is a…
Speedometer for particles (how fast particle are moving)
What’s light energy
The energy in electromagnetic waves of radiation.
T or F: light energy is the only form of energy that doesn’t need atoms or matter to carry it
True
What’s chemical energy
The energy stored in chemicals
What’s electrical energy
The energy in moving electrons (moving charged particles)
Static electricity
Electrons aren’t moving. Extra electrons act like a magnet
When is an electrical current created
when electrons are moving
What’s sound energy
Vibrations transmitted through gas, solid or liquid that our ears can detect.
what’s nuclear energy
Stored in the nucleus of an atom. Nuclear fusion and fission
Nuclear fusion
Coming together-ex: man made elements, sun-2 hydrogen=helium
Nuclear fission
Break apart (ex nuclear bomb)
What’s mechanical energy
The energy in motion and position of objects. Includes kinetic+potential energy
Kinetic energy
Associated with moving objects
Potential energy
Energy stored in an object because of the objects position. It’s calked PE because it has the potential to be converted into KE or other forms of energy
Properties of energy
Energy causes change (transformation)
Law of conservation of energy
Energy can be converted from one form to another. No matter what happens to it, the total amount remains the same.
Pendulum lab
String length has affect-shorter string has more swing,
Mass has no affect
Amplitude has no affect
Percent error
When you mathematically calculated what the value should be, but your data isn’t what you mathematically calculated
T or F: you can have a conversion without thermal energy
False
Gravitational potential energy
Based on position. To calculate need to know:
Height of object, gravity (gravitational pull), mass
Weight
Number of atoms x gravitational pull
Mass
Number of atoms
Equation for gravitational potential energy
GPE=mgh
What does mgh stand for
Mass, gravitational pull, height above ground
Gravitational pull on earth
9.8m/s²
What is energy
The ability to do work (make things move)
What is work
The scientific word for “making objects move”
Equation for work
Work=force x distance
Heat v temp
Temp is KE-how fast they are moving
Heat-total amount of energy
What’s thermal energy
Total kinetic energy of all the atoms in an object
What’s a radiometer
A tool that measures radiation waves and light
Note
Flashcard