Energy

What is energy transformation?

• The process of creating energy from nothing.

• Process of changing one form of energy into another form.

• Conversion of energy from one form to another.

• The transfer of energy from one object to another.

Give an example of elastic potential energy.

• A stretched rubber band

• A burning candle.

• A moving car.

• A compressed spring.

What is an example of an object that has kinetic energy?

• A student fell asleep at their desk during the test.

• A trackstar is at the start of the race getting ready to run.

• Two kids are playing tag outside and are running.

• A car is parked in the parking lot of the school.

Differentiate between longitudinal and transverse waves.

• Longitudinal waves have particles vibrating parallel to the direction of wave propagation, while transverse waves have particles vibrating perpendicular to the direction of wave propagation.

• Longitudinal waves have particles vibrating in a circular motion, while transverse waves have particles vibrating in a straight line.

• Longitudinal waves have particles vibrating perpendicular to the direction of wave propagation, while transverse waves have particles vibrating parallel to the direction of wave propagation.

• Longitudinal waves have particles vibrating in a zigzag pattern, while transverse waves have particles vibrating in a wave-like pattern.

What are the advantages of renewable energy resources?

• Renewable energy resources are expensive and not cost-effective.

• Renewable energy resources have several advantages, including sustainability, reduced greenhouse gas emissions, job creation, and increased reliability.

• Renewable energy resources are unreliable and inconsistent.

• Renewable energy resources require a lot of land and space.

What are the disadvantages of fossil fuel energy resources?

• Air pollution, greenhouse gas emissions, contribution to climate change, depletion of natural resources, and dependence on foreign oil.

• Negative impact on wildlife and ecosystems, water pollution, land degradation

• Limited availability, non-renewable, geopolitical conflicts

• High cost of extraction and production, environmental degradation, health hazards

How does energy transformation occur in a wind turbine?

• The wind turbine uses solar energy to generate electricity.

• Kinetic energy of the wind is converted into electrical energy through mechanical rotation of the turbine blades.

• The wind turbine absorbs energy from the wind and converts it directly into electrical energy.

• The wind turbine converts electrical energy into kinetic energy.

Explain the concept of kinetic energy.

• Kinetic energy is the energy possessed by an object due to its shape.

• Kinetic energy is the energy possessed by an object due to its temperature.

• Kinetic energy is the energy possessed by an object due to its position.

• Kinetic energy is the energy possessed by an object due to its motion.

What are the disadvantages of nuclear energy?

• The disadvantages of nuclear energy include the risk of accidents and meltdowns, the production of radioactive waste, the high cost of building and maintaining nuclear power plants, and the potential for nuclear weapons proliferation.

• Building and maintaining nuclear power plants is inexpensive.

• Nuclear energy is completely safe and has no risk of accidents or meltdowns.

• Nuclear energy does not produce any radioactive waste.