Lesson Quiz

What causes the turbine to spin?

• The heat energy of steam is changed into the energy of motion.

• The motion of steam is changed into electrical energy.

• The chemical energy in coal turns the water into steam.

• Energy from the sun is changed into chemical energy.

Which of the following materials is not a fuel?

• coal

• wood

• water

• natural gas

What can be added to the drawing to show the original source of the energy found in the fuel?

• rocks breaking down into minerals

• people mining the coal

• the motion of flowing water

• sunlight shining on Earth

During a recent storm, Caleb’s family lost power in their house. His mom put gasoline into their backup generator and turned it on. Soon, they had light in the house again. What type of energy did the generator produce to turn the lights on?

• sound

• light

• electrical

• heat

In science class, Abby's group is creating a flow chart. The flow chart shows how a power plant can change chemical energy into electrical energy. Abby will write a word in the first box to show a source of chemical energy. Which word should she write?

• sun

• wind

• water

• coal

Think about what is happening to the wood. Which word best describes this action?

• electricity

• generator

• boiler

• combustion

What is one of the most common types of turbines used in industry?

• Gas
• Wind
• Electric
• Hydraulic

What is the transfer of electricity in a generator?

• Mechanical to Electrical 
• Physical to Potential 
• Electrical to Mechanical
• Yogurt to Light