Lesson 1
Name the one type of kinetic energy that was emphasized?
Electric Energy
State of matter that has a definite volume but no definite shape
Liquid
Thermal energy moving from a region of higher temperature to a region of lower temperature
Heat
Provide the best word: Change of state of matter from liquid to gas
Vaporization
In which state of matter are particles tightly packed?
Solid
Name the two forms of energy that are a combination of both Kinetic and Potential Energies?
Mechanical Energy and Thermal Energy
Movement in different directions at different speeds
Random motion
Transfer of energy due to collisions between particles in matter
Conduction
The term described an increase in volume as the temperature is increased
Thermal expansion
**DOUBLE JEOPARDY** When an object is going through a change in its state of matter, its temperature: a) increases b) remains constant c) decreases
b) remains constant
Name the 3 main types of Potential Energy
Gravitational PE, Chemical Energy, and Nuclear Energy
The measure of the average kinetic energy in a particle
Temperature
Transfer of thermal energy from one object to another by electromagnetic waves
Radiation
Vaporization that occurs within a substance/liquid
Boiling
If the water at room temperature is poured into a glass at room temperature, will there be any exchange of thermal energy?
No. They are in equilibrium.
Name the type of energy carried by electromagnetic waves
Radiant energy
Fill in the blank: As temperature increases, the average speed and KE of the particles in a material ______________.
increase
Transfer of energy by movement of particles from one part of a material to another
Convection
Vaporization that occurs on the surface of a liquid
Evaporation
How does a thermometer work?
liquid inside the thermometer expands or contracts, and the height of the liquid rises or falls accordingly
Correctly differentiate which is Mechanical Energy and which is Thermal Energy: 1) the sum of the PE and KE in a system 2) the sum of the PE and KE of the particles that make up an object
1) Mechanical Energy 2) Thermal Energy
A paper ball is thrown across the classroom. What type of energy does it have BEFORE it leaves the thrower's hand (and before said thrower gets a demerit)?
Potential energy
In which state of matter does convection NOT occur?
Solid
Provide the best word: 1) Change in state of the matter directly from gas to solid 2) Change in state of the matter directly from solid to gas
1) deposition 2) sublimation
Which statement best describes the function of enzymes?
Enzymes reduce the activation energies of biological reactions.