3-3 Standard Quiz

An electrical generator is an important component in a power plant.

Which BEST shows the energy transfer diagram for a generator?

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Which example shows electrical energy being transformed into heat energy?

• burning a wax candle

• a small toaster oven toasts a bagel

• rubbing two sticks together

• sunlight heating a metal door

Solar energy is a clean, renewable energy source. It is expensive to build a solar plant, but there is no fuel cost only maintenance. Why does solar energy not play a bigger role in energy production today?

• The technology to make solar energy is not yet available.

• Environmental groups are against solar energy as a power source.

• The cost of maintenance still is more expensive than all other energy technologies.

• The original cost of a solar plant still takes too long to be recovered by future savings.

A class assignment requires the building of a solar-powered car that will travel at least 10 meters in 10 seconds. Each group is given one solar cell for their design. Which of these would improve the design the most?

• Using a thicker axle

• Adding mass to the design

• Reducing the mass of the design

• Making the size of the car bigger

Which flow diagram BEST explains the energy transformations that occur within an automobile running on diesel?

• chemical energy → kinetic energy→ heat energy

• heat energy → kinetic energy → chemical energy

• kinetic energy → mechanical energy → heat energy

• mechanical energy → heat energy → chemical energy

Electrical energy can be transformed into other types of energy. We often experience this transformation of energy in our everyday lives. The example that represents a transformation from electrical to sound energy is

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Electrical energy can be transformed into other types of energy. We often experience this transformation of energy in our everyday lives. Which example represents a conversion from light energy to electrical energy?

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This is a device that converts electrical energy into radiant (light) energy.

• Solar Cell

• Battery

• Light Bulb

• Generator

• Motor

This is a device that uses chemical energy to make electrical energy.

• Solar Cell

• Battery

• Light Bulb

• Generator

• Motor

This is a device that converts solar energy to electricity.

• Solar Cell

• Battery

• Light Bulb

• Generator

• Motor