PE
What is Potential Energy?
What is Kinetic Energy?
Energy of movement
What form of energy is BEST represented by boiling water?
Thermal energy
What form of energy is BEST represented by a person singing?
Sound energy
Where does the cart of a roller coaster have the most POTENTIAL energy?
At the top of the first (tallest) hill
What two factors impact the amount of potential energy an object has?
Mass and distance from ground
What two factors impact the amount of kinetic energy an object has?
Mass and speed
What form of energy is BEST represented by the GLOW from a glow stick?
Radiant energy
What form of energy is stored in the nucleus of atoms?
Nuclear energy
What energy transformation happens when a car moves?
Chemical (gas) to mechanical (movement)
Would a boulder or a feather have more potential energy? WHY?
Boulder - more mass
Would a person walking or a dog running have more kinetic energy? WHY?
Dog running - more speed
What form of energy is BEST represented by a sandwich?
Chemical energy
What form of energy is BEST represented by a person running?
Mechanical energy
What energy transformation happens in a plant that is growing through photosynthesis? (hint: plants need sunlight to grow)
Would a person standing on a chair or a person about to jump out of an airplane have more potential energy? WHY?
Person about to jump out of an airplane - farther from the ground
Which would have more kinetic energy: a semi truck going 50 mph or a motorcycle going 50 mph? WHY?
Semi truck - more mass
What type of energy is BEST represented when memory foam is compressed?
Elastic energy
What type of energy is BEST represented by an apple sitting on top of a skyscraper?
Gravitational energy
What is the Law of Conservation of Energy?
Energy cannot be created or destroyed
Imagine you have two identical tennis balls. How could you INCREASE the amount of potential energy one of them has?
Increase its height/how far it is from the ground
What factor affects the amount of kinetic energy an object has the most?
speed of the object
What are two forms of energy represented by lightning?
Electrical, radiant, thermal
What 2 forms of energy are involved when a space heater is turned on?
Thermal energy and electrical energy
Batteries store chemical energy. The battery in a flashlight stops working. What happened to the chemical energy in the battery/where did it go?
The chemical energy was transformed into radiant/heat energy