Energy I
The energy an object has due to its motion.
What is kinetic energy?
What two factors affect potential energy?
Mass and height
A measure of the average kinetic energy of the individual particles in matter.
What is temperature?
The four states of matter.
What are solid, liquid, gas, and plasma?
One example of a single energy transformation (be specific)
What is: a toaster transforms electrical energy to thermal energy to toast your bagel; a cell phone transforms electrical energy to electromagnetic energy that travels to other phones; your body transforms the chemical energy in your food to mechanical energy needed to move your muscles.
This factor has the greatest effect on kinetic energy.
What is velocity?
A 400-kg skier and a 450-kg skier are standing at the top of a ski slope. This skier has more gravitational energy.
What is the 450-kg skier because he/she weighs more.
Heat moves in this direction.
What is from warmer objects to cooler objects?
The process by which a solid becomes a liquid.
What is melting?
Two examples of radiation are:
What are a campfire, a lightbulb, and the sun?
The ability to do work or cause change is called this.
What is energy?
These two forms of energy combine to make mechanical or total energy.
What potential energy and kinetic energy?
The temperature (-273 degrees Celsius) at which no more energy can be removed from matter.
What is absolute zero?
The process by which a gas becomes a liquid.
What is condensation?
The law of conservation of energy states this.
What is: energy cannot be created or destroyed?
Stored energy that results from the position or shape of an object.
What is potential energy?
X-rays, ultraviolet radiation, and radio waves are all examples of this type of energy.
What is electromagnetic energy?
Freezing point and boiling point of fresh water in degrees Fahrenheit
What is? Freezing Point = 32 degrees Fahrenheit. Boiling Point = 212 degrees Fahrenheit.
The melting point line on the "Changes of State" graph can also be called this.
What is the freezing point?
This type of heat transfer occurs in hot air balloons, allowing warmer, less dense air to rise and cooler, denser air to sink.
What is convection?
Type of energy a bow has when you pull back the arrow.
What is elastic potential energy?
Two examples of chemical energy.
What are food, matches used to light a candle, cells, batteries
This is how a thermometer works (be specific).
What is: As the temperature of the liquid inside the thermometer increases, its volume increases (particles spread farther apart making it less dense), so it rises higher? As the temperature decreases, its volume descreases (particles get closer together, so it becomes more dense), so the liquid sinks lower in the thermometer?
The process by which a solid directly becomes a gas, without going through the liquid stage.
What is sublimation?
Which has more kinetic energy, a car or an 18 wheeler semi?
18 wheeler because of the mass.