Question: Q: What force occurs whenever two surfaces come into contact? Choices: - tension - vibration - gravity - friction A:
Answer: friction

Question: Q: What is the term for the energy of motion, which is exhibited by the speed of an object? Choices: - inertia - mechanical energy - residual energy - kinetic energy A:
Answer: kinetic energy

Question: Q: When changes in the genes of a species result in a new species, the process is called what? Choices: - Classic Evolution - simple evolution - similar evolution - biological evolution A:
Answer:
biological evolution