_____________ _____________ occurs when energy changes form one form to another.
Energy Transfer
What does The Law of Conservation of Energy state? (entire definition)
Energy cannot be created nor destroyed, it can only change its form from one form to another
If a beach ball and a bowling ball both fell off the same shelf, which one would have the most kinetic energy when it hits the floor
Bowling ball
What type of energy does each of these items have?
Gasoline
A book on a shelf
A car driving on the road
A runner running on the track
Gasoline- Chemical Potential
Book on shelf- Gravitational Potential
Car driving on road- Mechanical
Runner running- Kinetic
The source of all energy
The Sun
The transfer of energy through electromagnetic rays.
Radiation
When you light a fireplace, you are converting chemical energy to which form of energy?
Thermal Energy
Batteries in a flashlight have _______ _________ which is transformed into _________ _________ and then into ____________ _______________
Batteries in a flashlight have Chemical Potential which is transformed into Electrical Energy and then into Light Energy
What energy transformations take place when green plants grow?
Chemical Energy
True or False: When an ice cube is placed in a glass of lemonade, the coldness from the ice cube is transferred to the lemonade, making it cold
False
Which type of energy is considered "working energy"?
Kinetic Energy
What two factors affect the amount of kinetic energy an object has?
Mass and Speed
Transfer from hot to cold until the energy reaches equilibrium
Thermal Energy
The heat that is transferred when cold air or water molecules are heated and rises and warm air or water molecules are cooled and sink
Convection
Explain how temperatures can reach equilibrium
Heats transfers from the warmer object to the cooler object until they reach equilibrium
Which roller coaster car has the greatest amount of potential energy and why?
Car 2 because it is at the highest point
The energy an object has due to the arrangement of its atoms
Chemical Potential Energy
True or False: The best description of what happens when a car coasts to a stop, is that the car's kinetic energy is decreasing and the potential energy is increasing
True
What two factors affect the amount of gravitational potential energy an object has
How high the object is off the surface and how much mass the object has
Which of the following has the least amount of kinetic energy?
A 500g cart moving at 20 m/s
A 500g cart moving at 10 m/s
A 500g cart moving at 15 m/s
A 500g cart moving at 5 m/s
A 500g cart moving at 5 m/s