Generating Electricity and Power Physics

Which of these might spin a generator at a power plant to produce electricity?

• wind

• water

• steam from burning coal

• all of these

To generate electricity we need

• A coil of wire.

• Only magnet.

• A coil of wire and a magnet.

• Rubber.

What is the name of the device that generate electricity

• Generator

• Motor

• Coil

• Magnet

Materials which allow electric current to pass through them are ___________

• conductors

• Insulators

• None of the above

Materials which do not allow electric current to pass through them are_________

• Conductors

• Insulators

Biofuel is...

•  Energy that comes from harnessing the movement of the air
• Energy that comes from the Sun
• A source of non- renewable energy
• Fuel from plant material

Hot water is pumped up from deep inside Earth and is used to heat homes or to generate electricity. This describes...

• biofuels
• hydroelectric energy
• geothermal energy
• hot water heating

As water flows through a dam, a generator is turned and creates enough electricity for thousands of homes. This describes...

• biofuels
• hydroelectric energy
• geothermal energy.
• potential energy

Tags

NGSS.HS-PS3-3

What are two advantages of geothermal energy?

• cheap and non-renewable
• expensive and heavy pollution
• cheap and little pollution
• cheap and does no harm to anything

One problem with ____ energy is that it produces radioactive waste. 

• nuclear
• solar
• tidal
• geothermal

Tags

NGSS.HS-PS1-8