Energy and Conversions

What is the primary type of energy generated by the movement of water through turbines in a hydroelectric power plant?

• Kinetic Energy

• Electrical Energy

• Chemical Energy

• Nuclear Energy

Tags

NGSS.HS-PS3-3

Which of the following pairs of actions are effective ways to conserve energy at home?

• Always leave the lights on to avoid using more power by turning them on and off. Use a dishwasher at full capacity.

• Use energy-efficient LED bulbs. Unplug chargers when not in use.

• Keep the heating on low all day rather than using it as needed. Shower using maximum hot water.

• Open windows instead of using air conditioning. Keep the fridge door open longer to grab everything at once.

Which of the following is considered a sustainable energy source?

• Coal

• Wind turbine

• Diesel engine

• Gasoline

Which energy conversion primarily occurs in a solar panel used to generate electricity?

• Solar to electrical

• Chemical to electrical

• Mechanical to electrical

• Thermal to electrical

Tags

NGSS.HS-PS3-3

What type of energy is primarily utilized by a manual hand drill during operation?

• Mechanical

• Chemical

• Thermal

Tags

NGSS.MS-PS3-5

Carter is investigating how water changes states. He observes a pot of water boiling on the stove. What type of energy is used to make the water boil?

• Heat

• Light

• Potential

• Sound

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What type of energy conversion occurs when a light bulb emits light? The electrical energy is transformed into ________ energy.

• mechanical

• chemical

• light

• thermal

Which of the following is a characteristic of fossil fuels?

• a. They can regenerate quickly

• b. They are primarily renewable

• c. They require millions of years to form

• d. They are found in the atmosphere

Renewable Energy, which is energy that cannot run out, and Nonrenewable Energy, which is energy that can run out. Which one of these is using nonrenewable energy?

• A dam on a river

• A windmill on a farm

• A power plant that burns coal

• A power plant that burns dried grasses

Use the scenario to answer the question: A student named Noah wanted to know which brand of lollipops lasteds the longest. They bought Blow pops, Tootsie Roll pops, and Ring Pops. Noah, along with his friends Aiden and Anika, licked the lollipops until it was gone. After 3 lollipops of each brand were tested by each of them, it was determined that Ring Pops lasted the longest, and Blow pops the least. They measured each lollipop by recording the number of licks it took to finish. What is the independent variable in this experiment?

• a. The brand of lollipops

• b. How many licks it took

• c. The size of each lollipop

• d. How many they ate