Topic 3.1 Energy

What does energy mean?

• Anything that is under observation

• Anything that is not part of a system

• The ability to produce change in a system

• A chemical reaction

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Energy can be seen.

• True

• False

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Which of the following statements about energy are true?

• Energy can cause change in a system

• There are different forms of energy, with different characteristics

• Forms of energy can be transferred or transformed

• Different physical quantities contribute to different forms of energy

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What is kinetic energy?

• The energy of motion

• The stored energy of an object as a result of its condition or its position

• Energy stored by a separation of positive and negative charges

• Energy due to the position of an object above or below another object

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What is potential energy?

• The energy of motion

• The stored energy of an object as a result of its condition or its position

• The energy of electrons moving along a wire or other conductor

• The energy of the random motion of the particles that make up a substance.

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Select the following examples of kinetic energy:

• Radiant energy

• Thermal energy

• Magnetic energy

• Sound Energy

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Energy is neither created or destroyed, but can be transformed from one form to another or transferred from one object to another.

• True

• False

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Select the following correct pairing:

• Open system - can exchange both energy and matter with its surroundings.

• Closed system - can exchange matter but not energy with its surroundings.

• Isolated system - cannot exchange energy or matter with its surroundings

When energy is transferred, it changes form

• True

• False

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When energy is transformed, the form of energy changes

• True

• False

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