The 6th Grade Energy Quiz

Explanation
When Gary let his cart go on the hill, it started moving and gained speed. This indicates that the cart had kinetic energy. Kinetic energy is the energy possessed by an object due to its motion. In this case, the cart's motion down the hill resulted in the conversion of potential energy (stored energy due to its position on the hill) into kinetic energy. Therefore, the correct answer is Kinetic Energy.

Explanation
Uranium is a radioactive element that undergoes a process called nuclear fission, which involves the splitting of atoms to produce energy. This process is commonly used in nuclear power plants to generate electricity. The splitting of heavy atomic atoms and the combining of atoms are not accurate descriptions of uranium. The option "The splitting of two monkeys" is not relevant to the question. Therefore, the correct answer is that uranium is the splitting of atoms to make energy.

Explanation
Potential and kinetic energy are the two main types of energy resources. Potential energy refers to the energy that an object possesses due to its position or condition, such as gravitational potential energy or elastic potential energy. Kinetic energy, on the other hand, is the energy of an object in motion. Both potential and kinetic energy play crucial roles in various energy systems and can be converted into other forms of energy for practical use.

Explanation
Thermal refers to heat. It is a term used to describe the transfer or generation of heat energy.

Explanation
Nuclear energy is powerful because it is derived from the process of nuclear fission, where the nucleus of an atom is split into two smaller nuclei, releasing a significant amount of energy. This energy is harnessed and used to generate electricity in nuclear power plants. Nuclear energy has a high energy density, meaning that a small amount of nuclear fuel can produce a large amount of energy. This makes it a highly efficient and powerful source of energy.

Explanation
Fossil fuels are considered the most polluting type of energy because they release high amounts of carbon dioxide and other greenhouse gases when burned. These emissions contribute to climate change and air pollution, leading to negative impacts on human health and the environment. Fossil fuels also produce other harmful pollutants such as sulfur dioxide and nitrogen oxides, which contribute to acid rain and respiratory problems. Additionally, the extraction and transportation of fossil fuels can cause environmental damage through oil spills, habitat destruction, and water pollution.