Transcript Work and Energy slideshow

Journal Entry:
1) Think of the hardest work that
you have ever done. Describe what
made it hard.
2) List 5 ways/places that you get
energy.
This is Work....
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Work and Energy
Work
work is done when a force is applied
over a distance.
Moving objects is an example of work
Categorize the following jobs as doing a LOT of work
or a LITTLE work (according to the science
definition).
Teacher
Landscaper Mechanic Businessman
Grocery Stocker Pilot President
Garbage man
Energy
1. Energy is the ability to do work;
the ability to move an object.
2. Energy is needed to move
matter across some distance.
Connection
Without Energy, you can’t make a
force. Without a Force, you can’t do
work. You aren’t doing work without
motion.
Energy Types
There are 2 main types of energy:
1) Kinetic Energy: The energy of
Motion
2) Potential Energy: Stored energy
due to an object’s position or
chemical makeup.
Types of Kinetic Energy
Thermal Energy- Heat (caused by moving particles)
Mechanical Energy- movement of large objects
Acoustic Energy- sound (caused by moving air
particles)
Radiant Energy- energy that travels in waves (light, xrays, microwaves, infrared, radio waves, ect.)
Electrical Energy- energy traveling in the form of
moving electrons
Types of Potential
Energy
Gravitational PE- energy stored up due to an
objects position/height.
Elastic PE- Energy stored in a spring or stretchy
object due to its being stretched or scrunched up.
Chemical PE - energy stored in the chemical
bonds of a substance
Nuclear PE- energy stored in the nucleus of an
atom
Energy