Transcript What is a Scientist? - Cockeysville Middle School

Objective: To analyze the movement of an
object in order to explain the Law
of Conservation of Energy
CSI Note: Can energy be created or destroyed?
Drill:
1. Take out a clean sheet of paper.
2. Title the paper, “Potential and Kinetic
Energy”.
3. Number the paper from 1 – 20.
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Activity 1: Kinetic and Potential
Energy – Can you tell the
difference?
Observe the PowerPoint presentation.
For each slide write “P” if potential
energy is being described or “K” if kinetic
energy is being described.
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Law of Conservation of Energy
How can you create energy?
How can you destroy energy?
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Explore the following web page:
http://www.walter-fendt.de/html5/phen/pendulum_en.htm
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What energy conversion takes place
as a pendulum swings from the high
point to the low point?
Energy is converted from potential to
kinetic as the bob loses height and gains
velocity.
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What energy conversion takes place
as a pendulum swings from the low
point to the high point?
Energy is converted from kinetic to
potential as the bob gains height and loses
velocity.
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Video:
https://www.youtube.com/watch?v=_uLSFigtLKg
Listen for both parts of the “Law of
Conservation of Energy”
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Law of Conservation of Energy
1. Energy cannot be created or destroyed.
2. Energy may only be transformed from
one form to another.
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Think – Pair – Share
Open Discussion
If energy cannot be created or destroyed,
why does a pendulum eventually stop?
What happens to the energy?
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When two objects or substances come
into contact with each other, friction
occurs.
Friction generates heat.
The energy of motion is transformed
into the energy of heat.
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HOMEWORK:
Kinetic and Potential Energy Analysis
Ditto
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