Consider a sample of water at 6°C. If the temperature is slightly increased, the volume of water
1) increases.
2) decreases.
3) remains unchanged.
Suppose the water is cooled instead to 3°C. Then further cooling of it will cause its volume to
4) increase.
5) decrease.
6) remain unchanged.
Answer: 1, 4
You might also like to view...
Which of the following is not an example of potential energy?
a. The energy stored in a pile driver. b. The energy stored in a stretched spring. c. The energy of a body moving across a horizontal surface. d. The energy in the water at the top of a waterfall.
What type of object is believed to be the central source of energy for an active galaxy?
A. globular cluster B. a large amount of gas and dust C. an unusually large and bright main sequence star D. a massive black hole
During the eighteenth and nineteenth centuries, attempts to precisely measure the astronomical unit relied largely on rare
A) total solar eclipses. B) transits of the inferior planets across the Sun. C) passages of comets close to the Earth. D) maximum elongations of Venus. E) oppositions of Mars.
A telescope has an angular magnification of 250. when operated with a 20. mm eyepiece. What is the focal length of the objective?
A) 5.0 cm B) 25. meters C) 5000. cm D) 5.0 meters E) 2.5 m