Today’s Agenda…11/4 Bellringer: What is the law of conservation of energy? Turn in Homework Notes on Kinetic and Potential Energy Homework Don’t forget.
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Today’s Agenda…11/4
Bellringer: What is the law of conservation of energy?
Turn in Homework Notes on Kinetic and Potential Energy Homework Don’t forget to study for your flashback
tomorrow!
Kinetic and Potential Energy
Study Pack #3
Review
True or False Energy is the ability to cause change Energy exists in many forms When energy is transformed into a new form,
some of the energy is lost Energy cannot be created or destroyed
Today’s Goals…
I can distinguish between kinetic and potential energy.
Energy
Energy is the ability to cause change Energy exists in many forms There are two types of energy that relate
to motion, kinetic and potential
Kinetic Energy
Things that move can cause change Kinetic energyKinetic energy is the energy an object
has due to its MOTION If an object isn’t moving, it doesn’t have
kinetic energy
Kinetic Energy
What effect does speed have on kinetic energy?
Kinetic energy increases as an object goes faster
A car going 60 mph has more kinetic energy than a car going 30 mph
Kinetic Energy
What effect does mass have on kinetic energy?
Kinetic energy increases as the mass of the object increases
A tractor trailer traveling at 20 mph has more energy than a bicycle traveling at 20 mph
Potential Energy
An object can have energy even though it is not moving
Potential energy is the energy stored in an object because of its position
A kite stuck in a tree has potential energy A stretched rubber band has potential
energy
Potential Energy
What causes the potential energy to increase?
The higher an object is above the ground, the greater its potential energy
The more mass an object has, the greater its potential energy
Potential Energy
Which would have more potential energy? A lamp or a paperclip on a table? A bowling ball or a tennis ball at the top of a
hill A rubber band that is stretched 1 inch or
3 inches?
TransformingPotential and Kinetic Energy
Potential energy can be transformed into kinetic energy Example: a book falls off of a shelf
Kinetic energy can be transformed into potential energy Example: you throw a ball straight up into the
air
Energy Changes in Falling Water
Potential energy is transformed to kinetic energy
The kinetic energy is used to spin a generator that produces electricity
Assignment
Think about a playground Where might you find kinetic and potential
energy? Create an illustration of a playground and
label all the different places you would see kinetic and potential energy
Assignment Guidelines
Include both kinetic and potential energy Include at least 5 examples Label your examples Color your picture
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