MS-PS3.B-1

Cut The Rope - Energy

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LENGTH

17 Minutes

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Description

Through the mechanics of the famous game, Cut the Rope, you will learn about the Conservation of Energy.

Vocabulary Words

potential energy

kinetic energy

gravitational potential energy

chemical energy

law of conservation of energy

elastic potential energy

Instructions

Play through this interactive game to learn about Conservation of Energy. Suitable for Grade 6, Grade 7, Grade 8.

Main Concepts

Energy can be transferred from one place to another.

The law of conservation of energy states that energy can never be created or destroyed; the total sum of energy in a closed system is always constant.

During a chemical reaction, energy is transformed from one form to another.

When a stretched or compressed elastic material is released, elastic potential energy is converted into kinetic energy.

Energy can be transformed from one form to another.

Kinetic and potential energy can transform from one to the other as an object moves.

As an object falls near Earth's surface, gravitational potential energy is converted into kinetic energy.

As an object rolls uphill on Earth's surface, kinetic energy is converted into gravitational potential energy.

When an elastic material is stretched or compressed, kinetic energy is converted into elastic potential energy.

"Energy loss" refers to the transformation of energy into an unusable form, such as heat; however, energy is never truly lost.

Energy transformations can be identified in different systems all around us.

In a simple electric circuit with a light bulb, chemical energy from a battery is transformed into electrical energy, which is then transformed into light energy.

Discussion Questions

Before the Game

What does energy have to do with moving objects? How is an object falling from the top of a ten-story building different from an object falling from your desk onto the floor? How many different types of energy can you think of?

After the Game

Explain the law of conservation of energy. If two objects are dropped from the same height, do they have the same amount of potential energy? What energy transfer occurs in a battery powered flashlight?