How much electricity does it take to power the world? | TED-Ed

The video explains how electricity is generated and the current global demand. It highlights the need for clean energy and the challenges in transitioning from fossil fuels. The video discusses potential solutions, including wind, solar, and nuclear energy, and emphasizes the importance of future technological breakthroughs to meet increasing electricity needs sustainably.

What unit is commonly used to measure electricity, indicating how much energy is used per second?

• Calorie

• Watt

• Volt

• Joule

By what percentage is global electricity demand expected to increase by 2050?

• 100%

• 80%

• 60%

• 50%

What is one of the main reasons for switching from fossil fuels to electric power?

• To improve power grid infrastructure

• To reduce electricity costs

• To increase energy efficiency

• To eliminate greenhouse gas emissions

Which clean energy source involves using nuclear fission to generate electricity?

• Solar power

• Wind power

• Hydropower

• Nuclear power

What is a potential advantage of nuclear fusion over nuclear fission?

• It is easier to transport

• It does not produce long-lived radioactive waste

• It is cheaper to implement

• It produces more energy