Forms of Energy Flashcards
(38 cards)
What is energy?
Energy is the ability to do work or move and motion
What is the possible or stored energy in an object called?
potential energy
How does potential energy become kinetic energy?
when the energy is put in moation
What is chemical energy?
Chemical energy is when the energy is stored in the bonds of atoms
How is all energy connected?
because it moves from one place to another
What is thermal energy?
heat
Which of the following is an example of kinetic energy?
a vase sitting on a table
Sound
a plate of hot food
a parked cars
sound
What is an example of radiant energy?
the sun
What is sound energy?
vibrations of matter
What is mechanical energy?
energy used or stored in gears or moving parts
What does it mean “to do work?”
Exters a force over a distance to move an object
What unit is energy measured in?
joules (j)
How do objects gain energy?
Objects gain energy by work being done
What can the benefits be?
Monetary and non-monetary
What is CBA most commonly used for?
public decisions
What is a Trade-Off?
something you have given up
What are examples of potential energy and describe them? 3
Chemical: stored energy in the bond of atoms:
For example, anything that burns
Nuclear: in the nucleus of an atom
Fusion: joining of atoms
Fission: spiting of atoms
Gravitational: stored based on the distance from the center of gravity
Mechanical: also known as elastic
An example is the spring of a trampoline
What are examples of Kinetic energy and describe them?
Motion: any moving object
Example: moving fan
Sound a wave that is produced through the vibrations of an object
Electromagnetic radiation: moving waves in the form of radiation/light
Electric: movements of electrons of an atom
What is cost-benefit Analysis?
Benefit-cost Anayylis how much do you benefit vs. the cost
Be able to identify the opportunity cost in a scenario. Max can choose chipotle or subway he chooses subway what is the cost
chipotle
What is Opportunity Cost?
An opportunity cost is when you give up an opportunity
How does the amount of thermal energy change with temperature?
The amount of thermal energy changes with temperature whether it decreases or increases with the temperature.
What is the difference between static and current electricity?
Static energy is stored and current energy is moving
What element provides fuel for a nuclear reactor?
uranium
