Lesson 1 Quiz: Electrical Energy

Which of these is essential in the construction of an electric generator?

• A. battery

• B. wire coil

• C. metal base

• D. electric resistors

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

Which type of energy is converted into electrical energy by a generator?

• A. chemical

• B. kinetic

• C. mechanical

• D. potential

Tags

NGSS.HS-PS3-3

Which group of materials can be used to directly turn the turbines of a generator?

• water, steam, and air

• oil, wood, and solar energy

• natural gas, coal, and water

• nuclear fuel, steam, and oil

Tags

NGSS.HS-PS3-3

What type of electrical current has no net motion of the charge carriers?

• static current

• direct current

• static electricity

• alternating current

What is the source of the energy provided by a battery connected to a circuit?

• a chemical reaction

• a potential difference

• the components of the circuit

• an electric field inside the battery

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-2

In thermoelectric power plants, what is the fluid that turns the turbines?

• oil

• air

• steam

• natural gas

What is the photovoltaic effect?

• A. A solar cell produces a voltage.

• B. Electricity is generated by certain types of photons.

• C. Solar cells attach to each other and form a solar panel.

• D. Certain materials emit electrons when light shines on them.

Tags

NGSS.HS-PS3-3

NGSS.HS-PS4-3

How does the use of semiconductors in solar cells facilitate the transfer of solar energy to electrical energy?

• A. Under sunlight, electrons in semiconductors begin to move back and forth and generate a current.

• B. Under sunlight, electrons in semiconductors can easily flow in one direction and generate a current.

• C. Under sunlight, the semiconductor material absorbs photons and later releases them in the form of electricity.

• D. Under sunlight, the semiconductor material expands and releases thermal energy that turns into electrical energy.

Tags

NGSS.HS-PS3-3

Which method of generation of electricity produces a direct current (DC)?

• turbines

• solar panels

• thermoelectric power plants

• hydrocarbon-burning power plants

Tags

NGSS.HS-PS3-3

A student is calculating the loss of electrical energy when distributing energy from a solar panel to various destinations. Which variables should be measured?

• A. resistance and current

• B. temperature and travel time

• C. distance and strength of electric field

• D. hours of sunlight and efficiency of solar panels