According to Quantum Field Theory, what are forces?

What happens when a particle collides with its antiparticle?

What is another name for an anti-electron?

State whether use of each energy type as a source of electricity has increased or decreased in the U.S. since 2005. Natural gas: [b] Coal: [c] Renewables: [d]

The combining of small nuclei to form a larger nucleus is called [a], while the splitting of large nuclei into smaller ones is called [b].

The first nuclear weapons ever built were powered by [a].   The most powerful nuclear weapons ever built are powered by [b].

Which branches of physics combine to form Quantum Field Theory? Choose all that apply.

Which of the following are fossil fuels? Choose all that apply.

Name three energy sources, and list at least one advantage and one disadvantage for each source.  Write in full sentences.

Plutonium-238 (Pu-238) has a half-life of 88 days. Consider a sample containing 10 kg of Pu-238. How much Pu-238 will still be in the sample 176 days from now?