Q: What is the term for the force of attraction between things that have a mass? Choices: - weight - motion - magnetism - gravity A:
gravity

Q: What is the term for the difference in elevation between two contour lines? Choices: - height - design interval - mapping interval - contour interval A:
contour interval

Q: Q: What is an organic compound that is made up of only carbon and hydrogen? Choices: - an acid - a catalyst - a component - a hydrocarbon A:
A: a hydrocarbon

Question: Q: What is a continuous flow of electric charge called? Choices: - powered current - microwave current - magnetism - electric current A:
Answer: electric current

*Question*
Q: When an unstable nucleus emits radiation and is transformed into the nucleus of other elements this is called? Choices: - naturally decay - explosive decay - fusion decay - radioactive decay A:
**Answer**
radioactive decay

*Question*
Q: Of the three basic types of emissions, which has the highest penetrating power? Choices: - ultraviolet radiation - fluid radiation - chemical radiation - gamma radiation A:
**Answer**
gamma radiation