Science Starter -- SkatePark Investigation
• How did potential energy and kinetic energy change
for the skater?
• What happened to the energy when he came to a
stop with friction turned on?
• Why did the size of the pie chart not change?
Today’s Agenda
• Revisiting Skate Park Investigation
• Conservation of Energy Lab
• Day 2 Summary & Homework
• TURN IN UNIT 4 VISION MAP
Lesson Essential Question
What does it mean for energy to be
conserved?
Conservation of Energy Lab
• Question/Problem: How does the compression of a
spring affect the motion of a cart?
• Equipment:
• Dynamics Cart with Spring Bumper
• Ramp
• Meter stick
• Books
• Whiteboards
Conservation of Energy Lab
• Part 1: Prelab
• Student Investigation: 20 minutes
• Postlab Discussion: 20 minutes
• Prompt: If the cart were to be shot up a steeper vs. a
shallower ramp, describe how its motion will change?
1.
2.
3.
4.
Make and justify your prediction, WRITE IT DOWN
Discuss your prediction with your group
Design an experiment to experiment with the question above
Share findings on whiteboard with the class
Conservation of Energy Lab
• REMEMBER TO:
• Write down any and all procedures in your lab
• Draw/sketch any lab design
• Measure all necessary distances, angles, times
• Record all data in a nice data table
Conservation of Energy Lab
So… What did we find out?
How could we make our results better?
Homework
1. Read 10.3-5 on types of energy in textbook
2. Complete Energy Conservation Problem
3. Due by the beginning of class Tuesday