Test: Energy Sources - 2 - Year 11 MCQ

Fossil fuels are highlighted in the text for their abundant availability, making them crucial for current transportation and electricity systems. Despite their advantages, their reliability is gradually shifting due to depleting supplies and rising prices.

Hydroelectric dams produce electricity by converting the gravitational potential energy of stored water into kinetic energy as it flows downhill. This kinetic energy drives turbines, ultimately generating electricity.

Cultivating biofuel-producing crops demands significant land and resources, which could otherwise be used for food production. This limitation on availability is a notable disadvantage associated with biofuels.

Developing sustainable methods of electricity production faces challenges such as high implementation costs. Despite efforts to transition to carbon-neutral resources, cost remains a significant obstacle in adopting more sustainable energy practices.

Most vehicles globally rely on petroleum derivatives like gasoline, diesel, and kerosene derived from fossil fuels, particularly crude oil. Although electric vehicles are gaining popularity, fossil fuels remain the primary choice for vehicle operation.

Nuclear fusion, if successfully harnessed, holds the potential for virtually boundless energy production, offering a promising solution to the global energy shortage. Despite current challenges, advancements in fusion technology aim to achieve net energy output, paving the way for large-scale, carbon-free electricity generation.