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- What is a conservation principle;
- In which way energy depends on position and on velocity;
- In what way energy changes while a body is moving upward and downward;
- Why bodies increase their velocity as they go downward and why bodies lower there velocity when they go upward

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5) Let's focus on language...Did you understand everything? Let's check some vocabulary. Work in pair.

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5) Let's focus on language...Did you understand everything? Let's check some vocabulary. Work in pair.

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Watch the video (twice) while reading the  speech on the piece of paper you have been given.

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Let's refresh some topics you have studied last year.
Write in the boxes something that can have either lots of potential energy or not a lot of potential energy. Then explain why. Do the same with the kinetic energy.

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2) What do you think we are going to talk about?

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2) What do you think we are going to talk about?

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The students answer the question. The teacher writes on the board all the answers and take a photo. The photo is uploaded into this padlet.

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What do you think we are going to talk about?

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Classroom English: Vocabulary & Expressions for Students

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Work in group of 4. Summarize the text into a sentence IN ENGLISH (10-20 words). Pay attention! The sentence will be assessed!!!

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What have we been talking about?

What is a conservation principle?

In which way energy depends on position and velocity?

In what way energy changes when   a body is moving upward or downward?

Why velocity decreases as a body is moving downward?

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Back to HTML5 Version

Description

Learn about the conservation of energy at the skate park! Build tracks, ramps, and jumps for the skater. View the skater's kinetic energy, potential energy, and thermal energy as they move along the track. Measure the speed and adjust the friction, gravity, and mass.

Sample Learning Goals

Explain the Conservation of Mechanical Energy using kinetic, gravitational potential, and thermal energy.

Describe how changing the mass, friction, or gravity affects the skater's energy.

Predict position or estimate speed from energy bar graph or pie chart.

Calculate speed or height at one position from information about a different position.

Describe what happens to the energy in the system when the reference height changes.

Design a skate park using the concepts of mechanical energy and energy conservation.

Overview of sim controls, model simplifications, and insights into student thinking ( PDF ).

Teacher-Submitted Activities

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Learn about the conservation of energy at the skate park! Build tracks, ramps, and jumps for the skater. View the skater's kinetic energy, potential energy, and thermal energy as they move along the track. Measure the speed and adjust the friction, gravity, and mass.

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30 minutes