What Am I?
Energy of Motion
Kinetic Energy
How does heat always flow?
Hot to cold.
Melting.
Solid --> Liquid
What is used to measure temperature and what units do we use in science class?
Thermometer, C
Name the 3 main states of matter.
Solid, liquid, gas
Stored Energy
Potential Energy
What is a fluid and which groups are fluids?
Something that flows. Liquids and gases.
Liquid --> Solid
Freezing
When does heat stop transferring between 2 objects?
Heat stops transferring when the 2 objects reach the same temperature.
When an object falls, explain the energy transformations.
At the top it's 100% GPE. As it falls GPE is turning into KE. It has the most KE right before it hits the ground. On the ground it's back to 100% GPE.
Energy of an object that can be stretched or compressed.
Elastic Energy
Define conduction.
Heat transfer by direct contact.
What is condensation?
Gas --> Liquid
What is the unit for heat and energy?
Joule
What is the Law of Conservation of energy?
It states that energy cannot be created or destroyed.
Energy stored in the nucleus of an atom.
Nuclear energy
What causes wind?
Convection currents in the atmosphere.
Name 3 ways to describe a liquid going to a gas.
Boiling, evaporation, vaporization.
What is thermal energy?
The total KE and PE of all the particles in an object.
Contrast transfer and transform.
Transfer means to go from 1 object to another. Transform means to change from 1 type of energy to another.
Energy held between the bonds of substances.
Chemical Energy
Name 3 examples of radiation.
The sun, microwave, fire, space heater, etc.
Which changes of state require energy to be removed?
Condensation and freezing.
Explain what happens when heat is added to a substance.
The KE increases, the particles move faster and the thermal energy increases.
What is electromagnetic radiation?
Energy that travels through space as a wave.