Q: Answer the following question given this paragraph: In the 1780s, an American scientist named Benjamin Thompson, also known as Count Rumford, was hired by the Elector of Bavaria to supervise the manufacture of cannons. During the manufacturing process, teams of horses harnessed to a large-toothed wheel supplied the power needed to drill a hole several inches in diameter straight down the center of a solid brass or bronze cylinder, which was cooled by water. Based on his observations, Rumford became convinced that heat and work are equivalent ways of transferring energy. Q: According to count rumford, which two are equivalent ways of transferring energy? Choices: - addition and multiplication - osmosis and heredity - time and space - heat and work A:
A: heat and work

Q: Answer the following question given this paragraph: Because the heat is absorbed by the system, the 177.8 kJ is written as a reactant. The heat of reaction is positive for an endothermic reaction. Q: Is the heat of reaction positive or negative for an endothermic reaction? Choices: - Neither - Both - Negative - positive A:
A: positive

Q: Answer the following question given this paragraph: The head generally has several simple eyes and a pair of compound eyes. Simple eyes have a single lens, like the human eye. Compound eyes have many lenses. Q: Simple eyes, like the human eye, have how many lenses? Choices: - two - none - four - one A:
A: one

Q: Answer the following question given this paragraph: When fuel is burned, most of the energy is released as heat . Some of this heat can be used to do work. Heat cooks food or warms your house. Sometimes the heat is just waste heat. It still heats the environment, though. Q: When fuel is burned most of the energy is released as what? Choices: - humidity - condensation - precipitation - heat A:
A: heat