Forms of Energy
How many forms of energy did we learn about?
Present when an object is at rest at the top of a ramp
What is potential energy?
electric car
electrical ---->mechanical
Where is there the most potential energy on a half pipe skate ramp?
What is at the highest point, on both ends of the ramp?
What is kinetic energy?
What is the energy of movement?
What is nuclear energy?
Stretching a rubber band (the SPECIFIC form energy)
What is elastic potential energy?
person running
chemical ---> mechanical
What format do you use when writing a hypothesis?
What is "if....then....because"?
What is energy?
This form of energy is a combination of potential and kinetic
What is mechanical energy?
What two factors effect the amount of kinetic energy an object has?
What is mass & height?
photosynthesis
light/radiant ---> chemical
What does the law of conservation of energy state?
List three sources of renewable energy
biomass, wind, hydropower, solar, geothermal
The sun has 3 types of energy
What is light, nuclear, and thermal energy?
A person running down a hill has equal potential and kinetic energy at what point?
What is the middle of the hill?
nuclear power plant
nuclear ---> electrical
Give an example of something that goes through this energy transformation:
chemical ---> light + heat
burning a candle, a fire
energy from the vibration of molecules
What is sound energy?
Something burning, a battery, or eating food
What is chemical energy?
Draw what the graph would look like if we were comparing potential & kinetic energy of a skater who was 3/4 of the way down a skate ramp
Your potential energy should be less than your kinetic energy.
laptop (3 steps)
chemical ---> electrical ---> light
What unit is used to measure energy?
What is joules?
What is electrons jumping from atom to atom?