Answer the following question given this paragraph: Sunlight is turned into electricity at a solar power plant. These power plants use a large group of mirrors to focus sunlight on one place. This place is called a receiver ( Figure below ). At the receiver, a liquid such as oil or water is heated to a high temperature. The liquid transfers its heat by conduction . In conduction, energy moves between two objects that are in contact. The higher temperature object transfers heat to the lower temperature object. For example, when you heat a pot of water on a stove top, energy moves from the pot to its metal handle by conduction. At a solar power plant, the energy conducted by the heated liquid is used to make electricity. Q: When you heat a pot of water on a stove top, energy moves from the pot to its metal handle by what process? Choices: - induction - convection - thermal radiation - conduction A:
conduction
(Question)
Answer the following question given this paragraph: Q: What are the three forms of water as found in nature? Choices: - balanced , liquid , gas - ice, vapor, sleet - solid , mixture , gas - solid, liquid, gas A:
(Answer)
solid, liquid, gas
Ques: Answer the following question given this paragraph: Figure 1.1 Galaxies are as immense as atoms are small. Yet the same laws of physics describe both, and all the rest of naturean indication of the underlying unity in the universe. The laws of physics are surprisingly few in number, implying an underlying simplicity to nature's apparent complexity. (credit: NASA, JPL-Caltech, P. Barmby, Harvard-Smithsonian Center for Astrophysics). Q: The laws of what field of science apply to galaxies and atoms, an indication of the underlying unity in the universe? Choices: - anthropology - geology - astronomy - physics A:
Ans: physics
(Q).
Answer the following question given this paragraph: Enzymes are involved in most biochemical reactions, and they do their job extremely well. A typical biochemical reaction could take several days to occur without an enzyme. With the proper enzyme, the same reaction can occur in just a split second! Without enzymes to speed up biochemical reactions, most organisms could not survive. The activities of enzymes depend on the temperature, ionic conditions, and the pH of the surroundings. Some enzymes work best at acidic pHs, while others work best in neutral environments. Q: Most organisms could not survive without what being present to speed up biochemical reactions? Choices: - vitamins - lipids - hormones - enzymes A:
(A).
enzymes
Ques:Answer the following question given this paragraph: The horizontal motion of a projectile does not influence its free fall. Q: What influence does the horizontal motion of a projectile have on free fall? Choices: - decrease acceleration - vertical - increase acceleration - none A:

Ans:none
Ques:Answer the following question given this paragraph: 1.8 End-of-Chapter Material Chapter Summary To ensure that you understand the material in this chapter, you should review the meanings of the bold terms in the following summary and ask yourself how they relate to the topics in the chapter. Chemistry is the study of matter, which is anything that has mass and takes up space. Chemistry is one branch of science, which is the study of the natural universe. Like all branches of science, chemistry relies on the scientific method, which is a process of Saylor URL: http://www. saylor. org/books. Q: What branch of science is defined as the study of matter? Choices: - astrophysics - geology - biology - chemistry A:

Ans:
chemistry