1. Unit Joule *Energy James Prescot Joule Energy Transfer
General potential kinetic heat
example –as a weight falls it turns a paddle wheel to heat the water by friction. The potential energy of the weight is converted first into kinetic energy (motion) of the paddle wheel then to heat energy detected by measuring the temperature of the water.

2. Year
The experiment
purpose –to examine a sample in order to recreate the set-up system (a group of objects or units so combined as to form a whole and operate or move interdependently and in harmony.

3. Materials
pegboard
2 brackets
2 bolts
1 paper clip
Thermometer
1 copper tube **don’t bend
tape
ml beaker
1 spool of thread
1 pulley with bolt
water
1 – 5 sinkers
foil

4. -make a chart of the information # of sinkers water temp. oC
Set up experiment apparatus
-Drop sinker
-To move the paddles
-To raise the water temperature
-Measure and record the water temperature
-record the water temperature after rewinding and dropping the sinkers several times with the same amount of sinkers on the string each time
then change the amount of sinkers and repeat dropping them to raise the water temperature.
-make a chart of the information
# of sinkers water temp. oC

5. -disassemble 5 minutes before class is over
-make a graph
Title
Variables
control –what you touch
-always goes on
the X axis
-independent
what changes as a result of your actions –dependant
-always goes on the Y
axis C
X axis # sinkers y a x I s

6. Units y . X # sinkers 0C -coordinate pair (x,y)
number of sinkers and temperature pair
-describes a point on
a graph y . X

7. Line graph
Best straight line graph
***Use a ruler
Could extend the line to predict what the points would be past what you already have

8. Questions to answer in General part of write up
What is the energy supplier
What type of energy is it
What is the energy receiver
Plus include background information about the topic in the general part of the write up

9. Chart Title -same as graph title Variables (at least two)
Ordered pairs
Example
Joules Chart
_______________________________
# of sinkers
Temp degrees C
ORDERED PAIRS

10. Graph Title Labels Units
Points that correspond to the ordered pairs on the chart
Could extend the line to predict more sinkers
Example
Joules Graph -title