Electrical Energy (ENV)

How are magnetism and electricity related?

• When electricity flows through a wire, it creates a magnetic field. When a magnet moves back and forth through a coiled wire, it creates electricity

• Magnetic fields interact with electricity causing electricity to become stronger

• Magnetic fields interact with electricity causing electricity to become weaker

• The magnitude of the electric current, determines the strength of a magnet

How do thermoelectrical power plants use water to create electricity

• Water is heated by the thermal energy given off by burning fuel. The water is then turned into steam, which spins a turbine.

• Water is used to cool the turbine so it runs more efficient

• The thermal energy of water is converted to electrical energy by burning fossil fuels

• Water is mixed with fossil fuels to increase the magnitude of thermal energy, which is then converted to electrical energy

What do all thermal power plants have in common?

• They all burn a type of fuel (usually fossil fuels) to create thermal energy

• They all use the thermal energy of water to create electricity

• They all create electricity to heat water

• They all have to cool the water in order to create electricity

What is a secondary source of energy?

• A type of energy that has to be transformed from other sources

• A type of energy that can be immediately used

• A type of energy that is used directly

• Energy created by a moving magnet

Most power plants use which type of fuels

• Renewable resources

• Fossil Fuels

• Natural gas

• Nuclear energy

Which of the following is the first step in creating electricity in a power plant?

• Burn fossil fuels to heat water

• Use the steam produced to turn a turbine

• Electricity flows to a transformer to increase the magnitude so it can be transported

Which of the following is the second step in creating electricity in a power plant?

• Burn fossil fuels to heat water

• Use the steam produced to turn a turbine

• Electricity flows to a transformer to increase the magnitude so it can be transported

Which of the following is the final step in creating electricity in a power plant?

• Burn fossil fuels to heat water

• Use the steam produced to turn a turbine

• Electricity flows to a transformer to increase the magnitude so it can be transported

What is a Watt?

• The unit of power

• The unit of work

• The unit of electricity used

• The unit of the magnitude of electricity

How much is the average cost of electricity in Ohio?

• 11 cents per kWh

• 10 cents per kWh

• 25 cents per kWh

• 15 cents per kWh