Vocabulary
Kinetic or Potential
Thermal Energy
Chemical Energy/Misc.
Nuclear Energy
100
What is energy?
The ability to cause changes in matter, or the ability to do work
100
Which has more kinetic energy - Tom or a semi?
The greater the mass and speed of an object, the more kinetic energy there will be.
100
How can we measure thermal energy
with a thermometer
100
What is chemical energy?
energy stored in the bonds of the molecules
100
What is nuclear energy?
energy stored in the nucleus of an atom
200
What is potential energy?
The energy that exists due to the position or condition of an object
200
How are chemical and potential energy related
They are both forms of stored energy.
200
How does thermal energy transfer?
from the warmer object to the cooler object
200
How do molecules of fossil fuels and food break down differently?
Burning fossil fuels produces heat energy – there is more energy in the products of the reaction. When food is broken down, there is less chemical energy in the products of the reaction.
200
What is fission?
A reaction that releases nuclear energy when a nucleus breaks into two parts
300
What is kinetic energy?
The energy of motion
300
How do you increase an object's potential energy?
Raise the position of the object
300
If the temperature of a substance is high, which must be true about its particles?
The particles have a lot of kinetic energy.
300
What is the Law of Conservation of Energy?
Energy cannot be created or destroyed.
300
What is fusion?
A process in which nuclei of atoms are joined
400
What is thermal energy?
The kinetic energy of moving particles of a substance or object
400
When is the kinetic energy the greatest when a brick is tossed off of a building?
Right before the brick hits the ground
400
What is conduction?
the transfer of thermal energy through direct contact
400
List the forms of radiant energy in order of GREATEST to LEAST
gamma
x-rays
ultraviolet
visible light
infrared
microwaves
radio waves
400
Where does fusion take place?
(The answer is not "in the nucleus.")
in the sun
500
What is heat?
the transfer of thermal energy
500
When is the potential energy the greatest in a brick that is tossed off of a building?
When the brick is at the top of the building
500
What is convection?
The transfer of thermal energy through a liquid or gas
500
Which molecule has more chemical energy and WHY?
Methane because there are more bonds.
500
Why do power plant workers need to be able to control a fission reaction?
A fission reaction releases a tremendous amount of energy; if too much energy is released too quickly, the reactor core can overheat and leak radiation.