Vocabulary
__________ energy is based upon position and often referred to as a stored energy
Potential
What is the potential energy of a 40N book that is 2 m in the air?
80J
___________ energy is a form of energy that travels through space in waves
Electromagnetic
What kind of energy transformation occurs on a pool deck during a hot day
Electromagnetic to thermal
Heat transfers from _______ to _______ objects
warmer to cooler
Kinetic energy has to do with __________
motion
What is the kinetic energy of a 2kg toy truck moving at 4 m/s?
16J
Energy that comes from movement
Mechanical
What type of energy transformation occurs when you turn on a light?
Electrical to electromagnetic (light)
A type of energy transfer that does not require a medium in which to travel
Radiation
The law of ___________ says that energy can neither be created nor destroyed
Conservation of Energy
How high off the ground is a 30N object that has 150J of potential energy?
5m
Gasoline or fossil fuels are examples of ________ energy
Chemical
What energy transformation occurs in a car's engine
(3 forms of energy)
Chemical to thermal and mechanical
Heat moving from a hot pot to the boiling water is an example of what type of heat transfer
Conduction
Heat is the transfer of _________ energy
Thermal
How fast is a 4kg object going if it has 72J of kinetic energy?
6m/s
What type of energy involves the splitting of an atom?
Nuclear energy
What energy transformation allows us to get energy from food (entire process)
(3 forms of energy)
Electromagnetic (light/solar) to chemical to mechanical
Why do your feet feel cold on a tile floor?
Conduction
The ability to do work or cause a change
Energy
What is the potential energy of 5kg object at a height of 10m?
490J
What is the form of energy produced by friction?
Thermal
How does your tv work?
(from the source of the energy that enters your house, 4 forms total)
Chemical to electrical to electromagnetic (light) and sound
Wind blowing a kite into an upward direction is an example of what type of heat transfer?
Convection