Unit 2 - 7th Review

What is energy commonly defined as?

• The ability to create matter

• The ability to do work or cause change

• The ability to destroy matter

• The ability to stop motion

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DOK Level 1: Recall

Which of the following is an example of potential energy?

• A moving car

• A stretched rubber band

• A flowing river

• A spinning top

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DOK Level 1: Recall

Explain how kinetic energy can transform into potential energy using an example.

• A ball rolling down a hill

• A pendulum swinging to its highest point

• A car accelerating on a flat road

• A light bulb turning on

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DOK Level 2: Skill/Concept

Which statement best describes the Law of Conservation of Energy?

• Energy can be created and destroyed

• Energy is always lost during transformations

• Energy is conserved as it transfers from one object to another and from one form to another

• Energy can only be transferred, not transformed

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DOK Level 1: Recall

Identify the type of energy transformation that occurs when a battery powers a flashlight.

• Chemical energy to light energy

• Electrical energy to sound energy

• Mechanical energy to heat energy

• Nuclear energy to electrical energy

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DOK Level 2: Skill/Concept

Describe a situation where mechanical energy is transformed into heat energy.

• A book falling off a shelf

• Rubbing your hands together to warm them

• A plant photosynthesizing

• A wind turbine generating electricity

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DOK Level 2: Skill/Concept

Which of the following is an example of the Law of Conservation of Energy in action?

• A car engine converting fuel into motion and heat

• A light bulb burning out

• A battery losing charge over time

• A plant wilting in the sun

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DOK Level 3: Strategic Thinking

Differentiate between heat energy and light energy.

• Heat energy is visible, while light energy is not

• Heat energy is the energy of moving particles, while light energy is electromagnetic radiation

• Heat energy is stored in chemical bonds, while light energy is stored in atoms

• Heat energy is potential, while light energy is kinetic

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DOK Level 2: Skill/Concept

Recognize the kinetic theory of matter in the context of particle motion.

• Particles are always at rest

• Particles move in a fixed pattern

• Particles are in constant, random motion

• Particles only move when heated

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DOK Level 1: Recall

Compare the speeds of particles in a solid, liquid, and gas.

• Particles in a solid move faster than in a gas

• Particles in a liquid move slower than in a solid

• Particles in a gas move faster than in a liquid

• Particles in a solid move faster than in a liquid

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DOK Level 3: Strategic Thinking