Lesson 9 — gravitational potential energy and kinetic energy

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Slide 1: Diapositive

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Slide 1 - Diapositive

This lesson

KE and GPE
Finding answers using a simulation
A real world example
Time to work on exercises

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Learning goals

Name what GPE stands for.

Name what KE stands for.

Explain how GPE works and what factors influence it.

Explain how KE works and what factors influence it.

Explain what is meant by kinetic energy and how it works

Describe situations that involve energy changes between kinetic energy and gravitational potential energy

Slide 3 - Diapositive

KE?

GPE?

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Kinetic energy

GPE?

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Kinetic energy

Gravitational potenial

energy

Slide 6 - Diapositive

KE: Kinetic energy

GPE: Gravitational potential energy

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Link

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Questions to answer

What factors influence KE (kinetic energy?)
What factors influence GPE (gravitational potential energy)?
What happens to KE and GPE if we lift an object?
What happens to KE and GPE if we drop an object?
What can we say about the speed of an object if all it's energy is in GPE?
What can we say about the speed of an object if all its energy is in KE?
What else can we discover about the dynamic between GPE and KE?

Slide 9 - Diapositive

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K E = \frac{​ 1 ​ ​}{​ 2 ​} \cdot m \cdot v^{​ 2 ​ ​}

G P E = m \cdot g \cdot h

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K E = G P E

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m \cdot g \cdot h = \frac{​ 1 ​ ​}{​ 2 ​} \cdot m \cdot v^{​ 2 ​ ​}

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Time to work on exercises

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Formative test

After the christmas break

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Learning goals

Name what GPE stands for

Name what KE stands for

Explain what is meant by gravitaitonal potential energy and how it works

Explain what is meant by kinetic energy and how it works
Describe situations that involve energy changes between kinetic energy and gravitational potential energy

Slide 16 - Diapositive