Select the correct answer. Kylie places a cube of metal A and a cube of metal B in two separate beakers of water. Then she heats the beakers. She keeps the mass of metal, the amount of water, and the amount of heat the same. At the end of her experiment, she finds that metal A has a lower temperature than metal B. What can she conclude about the thermal properties of the two metals?

Metal B is a better conductor than metal A.
Metal A is a better conductor than metal B.
Metal A has a higher heat capacity than metal B.
Metal B has a higher heat capacity than metal A.

Metal A has a higher heat capacity than Metal B.

Explanation:

To answer this question, we have to think about what happened and what we know about thermal properties of metals. We are talking about temperature and heat in this question, so we can already eliminate both answers that talk about the metals being a conductor, because conductivity is related to electricity. That's not what the question asks. So therefore, we know one metal must have a higher heat capacity than the other. Heat capacity is defined as the number of heat units needed to raise temperature by one degree. If metal A has a lower temperature than metal B, it must have a higher heat capacity, because it takes more heat to raise the temperature. This is because metal B has a higher temperature than metal A. Therefore, the correct answer is Metal A has a higher heat capacity than Metal B.

most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).