Show:
Potential and Kinetic Energy
Law of Conservation of Energy
Temperature
Thermal Energy
100
What is potential energy?
Stored Energy
100
Energy cannot be ____________ or _____________.
Created, destroyed
100
Temperature measure what kind of energy?
Kinetic 
100
Thermal energy will transfer from _______ objects to ________ objects.
hot, cold
200
When a ball is dropped, the potential energy it started with its transferred into what type of energy?
Kinetic Energy
200
Does a roller coaster a the very top of a drop have more potential or kinetic energy?
Potential
200
Describe the speed of particles in food cooking over a stove.
The particles are moving fast.
200
Describe how a fire is able to heat up a pizza.
The thermal energy from the fire is transferred into kinetic energy in the molecules of the pizza.  This increases the kinetic energy of the molecules and increases the temperature.
300
Name two other forms of energy (not kinetic or potential)
Sound, Thermal, Elastic, Chemical, Magnetic, Nuclear
300

When a ball is dropped, why doesn't it bounce back up to the same height it was dropped from?

Energy is being to transferred away from the ball when it bounces. When the ball comes back up, it doesn't have the same amount of energy. This energy is being transferred into thermal, sound, potential, and kinetic energy.

300
Describe the kinetic energy of molecules in a bottle of water in the refrigerator.
It does not have a lot of kinetic energy.  The molecules are moving very slow.
300
Describe how a thermometer is able to measure temperature.
The molecules in the liquid in the thermometer either gain or lose kinetic energy.  If they gain kinetic energy the liquid with expand, causing it to rise.  If they lose kinetic energy the liquid with contract, causing it fall.
400
What is mechanical energy?

The total energy a system starts with.

400
What happens to the potential energy of an object when you increase its height?
The potential energy increases.
400
How can you increase the kinetic energy of the molecules in a bowl of soup that has been sitting in room temperature.
Increase the temperature of the soup.  This will increase the kinetic energy of the molecules and therefore increase the temperature.  This can be done my using a source of heat (fire, stove).
400
Explain why it takes more thermal energy to melt a larger ice cube.
There are more molecules in the larger ice cube so the water transfers more thermal energy to the ice cube.  This then cools down the water more.
500
Comparing a basketball and a tennis ball, which ball will have more potential energy if dropped from the same height.  Why?
The basketball will have more potential energy, because it has more mass.
500
A bowling ball is thrown, describe the energy transfers when it hits the pins.
Kinetic energy --> kinetic energy --> thermal energy --> sound energy
500
What will happen to the kinetic energy of molecules when you increase the temperature?
The kinetic energy will increase.
500
How does an insulator keep an ice cube from melting? 
The insulator prevents thermal energy from transferring from the air to the ice cube.  The ice cube's molecules will not gain kinetic energy and therefore not increase in temperature.  This keeps it frozen for longer periods of time.