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