3.1 Energy Exists In Different Forms.

(p72)  _______ is the ability to cause change.

• Motion

• Force

• Energy

• Sound

Write down your own example of energy usage and how it causes change.

(p72) look at the picture on page 72.  Can you list 3 things in the picture that use energy?

(p73) List the 6 forms of energy and give an example of each.

(p74- 75)  List the two types of energy and define both.

All 6 forms of energy (Mechanical, Sound, Chemical, Thermal, Electric, Nuclear) have kinetic and potential types.  Can you give an example of one form and how it can represent the two types of energy?

(p76)  Why is chemical energy a form of potential energy?

List three ways you can use energy.  How does each example involve a change?

What are some changes that can be caused by sound energy? 

What form of potential energy can be found in an apple on a branch of a tree?

(p 77) Why have electric cars not replaced gasoline cars?

Your project for this unit is going to involve building a water rocket.  Surf the internet to find out the following information.What are the parts of a rocket?What provides energy to a water rocket?Your body for your rocket is going to be from a 2 liter bottle, what other things might you use to make your rocket better? (think about the parts of your rocket.)