Podcast
Questions and Answers
Which of the following is a non-renewable energy source?
Which of the following is a non-renewable energy source?
- Biofuel
- Wind
- Solar
- Coal (correct)
Why is non-renewable energy used more for large-scale energy supplies?
Why is non-renewable energy used more for large-scale energy supplies?
- Non-renewable energy is easier to transport.
- Renewable resources cannot provide as much energy easily. (correct)
- Non-renewable energy has a lower impact on the environment.
- Renewable resources are more expensive to extract.
What does thermal insulation help to reduce?
What does thermal insulation help to reduce?
- Friction
- Conduction across materials
- Rate of energy transfer (correct)
- Thermal waste output
Why has renewable energy become more important?
Why has renewable energy become more important?
What is a disadvantage of solar energy as mentioned in the text?
What is a disadvantage of solar energy as mentioned in the text?
How does the efficiency of a system change when waste output is reduced?
How does the efficiency of a system change when waste output is reduced?
Why did fossil fuels become an important energy source during the industrial revolution?
Why did fossil fuels become an important energy source during the industrial revolution?
Which of the following is a renewable energy resource?
Which of the following is a renewable energy resource?
Which aspect makes solving environmental issues related to energy resources difficult?
Which aspect makes solving environmental issues related to energy resources difficult?
What factor helps to lower the rate of cooling in a building?
What factor helps to lower the rate of cooling in a building?
What has been a significant factor in the recent suitability of renewable energy sources?
What has been a significant factor in the recent suitability of renewable energy sources?
In terms of energy transfer by conduction, what does higher thermal conductivity of a material imply?
In terms of energy transfer by conduction, what does higher thermal conductivity of a material imply?
What type of energy is stored in a spring when it is stretched?
What type of energy is stored in a spring when it is stretched?
In the equation 𝐸𝐸𝑘𝑘 = 1/2𝑚𝑚𝑣𝑣², what does 'm' represent?
In the equation 𝐸𝐸𝑘𝑘 = 1/2𝑚𝑚𝑣𝑣², what does 'm' represent?
Which energy transfer happens when a ball rolls and hits a wall?
Which energy transfer happens when a ball rolls and hits a wall?
What does the specific heat capacity represent?
What does the specific heat capacity represent?
Which energy store is involved when a vehicle slows down due to friction?
Which energy store is involved when a vehicle slows down due to friction?
What is the formula for gravitational potential energy?
What is the formula for gravitational potential energy?
