Energy Examples
The sun fuses hydrogen atoms together into helium to produce light and heat
What is Nuclear Energy?
9.8 m/s/s
What is Gravity?
A toaster
What is Electrical energy --> Thermal Energy?
A hamster runs on a wheel lighting up a light bulb
What Mechanical --> Electrical --> Radiant?
Sound
What is Mechanical energy?
The reason why you can see anything
What is Light (or Radiant) Energy?
Step 3 of our problem solving process.
What is write down the formula?
Photosynthesis
What is Light Energy --> Chemical Energy?
A flashlight
What is Chemical --> Electrical --> Radiant?
Unbroken hand warmer
What is Chemical energy?
A lamp plugged into a wall outlet converts this energy into radiant energy.
What is Electrical Energy?
(1/2)(m)(v2)
What is the Kinetic Energy formula?
The moving human body
What is Chemical Energy --> Mechanical Energy?
Wind Turbine
What is Mechanical (wind) --> Mechanical (generator) --> Electrical?
Kinetic, Gravitational, Elastic
What are Mechanical Energies?
A hot cup of steaming cocoa contains this form of kinetic energy.
What is Thermal Energy?
Calculate the PE of a 15 kg mass sitting on a wall 10 m above the ground.
What is 1470 J?
An arrow flies from a bow toward a target.
What is Elastic --> Mechanical?
Energy lost in an electric pencil sharpener
What are heat and sound (due to friction)?
Chemical and Nuclear
What are Potential Energies?
An arrow flying through the air towards the target contains this form of kinetic energy.
What is Mechanical Energy?
Calculate the mass of the 15 kg object as it falls to the ground at 10 m/s.
What is 750 J?
You stomp your foot
What is Mechanical --> Sound Energy (mechanical)?
Combustion engine automobile
What is Chemical (gasoline) --> Mechanical (engine) --> Mechanical (car moving)?
Non-mechanical kinetic energies
What are thermal and electromagnetic energies?