What are the 2 types of Energy?
PE and KE
What type of potential energy is in a rubber band?
elastic
What energy transformation occurs when a battery-powered flashlight is turned on? list 2
chemical to electrical
What 2 factors affect potential energy? (mass and...)
mass and height
The kinetic and potential energies of an object both always depend on which property?
Mass
Which energy moves?
kinetic
What are at least 2 kinetic energies that are in a flash light?
heat
light
electrical
chemical to mechanical
What 2 factors affect kinetic energy?
mass and speed
What is the relationship between PE and KE ?
Inverse relationship
Which energy stays in place, BUT can move if a force acts on it?
potential
List 4 kinetic energies
electrical
thermal
radiant
sound
light
radiant to chemical to electrical to light
which has more potential? Why?
A because it is higher up which means when it falls it will have a lot of kinetic energy coming down
When a person holds an object, it has potential energy. How will the potential energy change if the person lifts the object above his or her head?
increases
What causes potential energy to become kinetic?
List all the potential energies
elastic
gravity
chemical
nuclear
describe riding a bike (energy transformation)
(Don't forget she needs food)
chemical-mechanical-thermal-maybe sound
Where will the roller coaster be MOST KINETIC? EXPLAIN
X because it is when gravity has pulled it and its right before it hits the bottom where the force is acting the strongest
A student is conducting an investigation using rubber bands. She places a rubber band around her thumb and index finger, pulls back, releases the rubber band, and records how far the band travels. She repeats this method while changing the distance in the pullback between her thumb and finger. What is the student most likely studying?
transformation between kinetic and potential energy
How can Motion energy be both potential and kinetic?
motion can be potential because it doesn't move yet
motion can be kinetic when it is moving
Explain why sound is kinetic?
vibration motion of molecules
What is the one kinetic energy that shows in all transformations?
thermal
What should the roller coaster makers do to have the coaster be the FASTEST IN THE WORLD?
have a super tall hill