Show:
Energy I
Energy II
Temperature and Heat Transfer
Changes of State
Potluck
100
The energy an object has due to its motion.
What is kinetic energy?
100
Weight x height =
What is gravitational potential energy?
100
A measure of the average kinetic energy of the individual particles in matter.
What is temperature?
100
The four states of matter.
What are solid, liquid, gas, and plasma?
100
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.
200
This factor has the greatest effect on kinetic energy.
What is velocity?
200
A 400-newton skier and a 450-newton skier are standing at the top of a ski slope. This skier has more gravitational energy.
What is the 450-newton skier because he/she weighs more.
200
Heat moves in this direction.
What is from warmer objects to cooler objects?
200
The process by which a solid becomes a liquid.
What is melting?
200
Two examples of radiation are:
What are a campfire, a lightbulb, and the sun?
300
The ability to do work or cause change is called this.
What is energy?
300
These two forms of energy combine to make mechanical energy.
What potential energy and kinetic energy?
300
The temperature (-273 degrees Celsius) at which no more energy can be removed from matter.
What is absolute zero?
300
The process by which a gas becomes a liquid.
What is condensation?
300
The law of conservation of energy states this.
What is: energy cannot be created or destroyed?
400
Stored energy that results from the position or shape of an object.
What is potential energy?
400
X-rays, ultraviolet radiation, and radio waves are all examples of this type of energy.
What is electromagnetic energy?
400
Freezing point and boiling point of fresh water in degrees Fahrenheit and degrees Celsius.
What is? Freezing Point = 0 degrees Celsius, 32 degrees Fahrenheit. Boiling Point = 100 degrees Celsius, 212 degrees Fahrenheit.
400
The melting point line on the "Changes of State" graph can also be called this.
What is the freezing point?
400
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?
500
Type of energy a bow has when you pull back the arrow.
What is elastic potential energy?
500
Two examples of chemical energy.
What are food, matches used to light a candle, and cells.
500
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?
500
The process by which a solid directly becomes a gas, without going through the liquid stage.
What is sublimation?
500
On a beach, this is why the ocean water can be so cold, yet the sand be very hot (even though the sun is heating up both).
What is? The water has a higher specific heat, meaning that it requires more heat to raise its temperature than sand does. The water can absorb just as much thermal energy as the sand without getting as hot.