Physical Science Review 1: Question Preview (ID: 10404)


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A researcher hypothesizes that a new club can improve a person's golf score. Which of these would most likely be the dependent variable in a study involving this golf club?
a) the number of participants in the study b) the golf scores of the participants in the study c) the ages of people who golf with other golf clubs d) the number of people who buy other kinds of golf clubs
A student wishes to study to effect of proper hydration of the performance of her school's track team. The dependent variable will probably be
a) the amount of water consumed by each runner b) the amount of time it takes each runner to completed a certain event c) the number of medals awarded to the track team during the season d) the number of hours that each runner trained before the competition
A group of scientists claim that a new type of fuel will help reduce greenhouse gas emissions. To evaluate this claim you can
a) Calculate the price of producing the fuel b) Study the effect of a fuel spill on wetland ecosystems c) determine the efficiency of the fuel in different types of engines d) test the amount of greenhouse gases released when the fuel is burned
You have gathered information about which websites your classmates visit to research science questions. What type of graph would best represent this information?
a) pie chart b) bar graph c) line graph d) scatter plot
Water changes shape to fill the shape of its container. What is the best explanation for this?
a) It's a physical property of water b) It's a chemical property of water c) The particles in water have low energy d) The molecules in water are constantly moving
Which of the following is a physical property of water?
a) Water has a pH of 7 b) Water is not flammable c) Water reacts with sodium d) Water is a liquid at room temperature
Which of the following would you describe as a change in state?
a) melting ice b) burning paper c) film being exposed to light d) a piece of paper being cut in half
Which of the following would you describe as a change in state?
a) melting ice b) burning paper c) film being exposed to light d) a piece of paper being cut in half
What is the boiling point of water?
a) 0C b) 32C c) 100C d) 212C
Which of the following is a reversible physical change?
a) burning coal b) boiling water c) chopping onions d) bread rising in an oven
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