So Much Potential
Gravitational potential energy depends on these three factors
Height of an object off the ground, weight/mass, and the strength of gravity's pull
Kinetic energy depends on these two factors
Weight/mass and the speed of an object
This is the energy of motion, or change
Kinetic Energy
When you break a glow stick, _____ energy turns into _____ energy.
Chemical potential, light
Magnets create magnetic potential because they have two sides, a _____ _____ and a _____ _____
North Pole, South Pole
A ball rolling down a hill will have the most kinetic energy:
A) At the top of the hill
B) In the middle, on the way down
C) At the bottom of the hill
C) At the bottom of the hill (this is where all of the gravitational potential energy has turned into kinetic energy).
This is stored energy, that could cause some sort of change
Potential energy
Name two ways of giving a spring elastic potential energy
Compress it, stretch it
Of the three particles that make up an atom, this is the negatively charged particle that builds up to help create electric potential (or static electricity)
Electrons
Light and sound are both types of _____ energy
Kinetic
What happens during an exothermic chemical reaction?
It gives off heat
Describe how the energy of a ball changes if you throw it in the air, as it rises to its highest point (include all types of energy necessary)
Gravitational potential energy increases, kinetic energy decreases
During photosynthesis, this type of kinetic energy (_____) turns into this type of potential energy (_____)
Light, Chemical
Which of the following has the most kinetic energy?
A) A person riding a bike downhill at 15 mph
B) A car driving at 15 mph
C) An 18-wheeler truck driving at 15 mph
D) Each situation has the same amount of kinetic energy because they're all going the same speed
C) An 18-wheeler truck driving at 15 mph (because it is going the same speed as all of the other objects, but it has more weight/mass
What happens to the electric potential energy between a positive charge and a negative charge when they move closer to each other?
There is less electric potential energy (decreases).
True or false: When an ice cube melts it has more kinetic energy
True (more heat has been added)
True or False: A tennis ball has elastic potential energy when you toss it in the air in order to serve it
False - it does not have elastic potential energy until it is deformed (hit it with the racket)
The projector is currently turning this type of potential energy (_____) into this type of kinetic energy (_____)
Electric potential, light
What happens to the magnetic potential energy between two magnets if the south poles face each other and are then moved away from each other?
There is less magnetic potential energy (decreases).
In the Hot Wheels lab, what is the relationship between kinetic and gravitational potential energy
When gravitational potential energy decreases, kinetic energy increases (or the other way around)