SCI-PS SOL Practice Questions - Physical Science 2 (Matter, Energy) Exam not valid for Paper Pencil Test Sessions

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1 SCI-PS SOL Practice Questions - Physical Science 2 (Matter, Energy) Exam not valid for Paper Pencil Test Sessions [Exam ID:2MGZGB 1 Which of these best describes the particle motion taking place as CO 2 gas is exposed to freezing temperatures? A The particles move with more force. B The motion of the particles is unchanged. C The motion of the particles becomes random. D The particles decrease in speed. 2 Students placed steel wool in beakers of four different liquids in order of the most acidic to neutral. The students recorded their observations in the table. Which is the best conclusion based on the table? A The more acidic the substance, the faster it reacts with steel wool. B The more acidic the substance, the faster the steel wool turns to a gas. C The less acidic the substance, the faster the steel wool becomes covered with air bubbles. D The less acidic the substance, the faster the steel wool changes color. 3 When a base is mixed with an acidic solution, neutralization occurs because the A acid evaporates B base chemically reacts with the acid C base reaches absolute zero D mass of the solution increases

2 4 Because zinc can combine with other substances but cannot be changed into a simpler substance by an ordinary chemical process, zinc is classified as A a mixture B an acid C an element D a compound 5 Of the states of matter, gas is the only state that A has mass B has a definite shape C is fluid D is highly compressible 6 Which of these properties of an unknown liquid can be found using a beaker, a hot plate, and a temperature probe? A Density B Boiling point C Oxygen level D Chemical composition 7 Jaden completed a chart on the properties of four known substances and one unknown substance. What type of matter is Jaden's unknown substance? A Solid B Liquid C Plasma D Gas

3 8 How is the modern model of an atom different from the Bohr atomic model? A The shapes of the nuclei are different. B The arrangements of the electrons are different. C The masses of the atomic particles are different. D The numbers of electrons are different. 9 The outermost electrons in an atom are called A cloud electrons B valence electrons C orbital electrons D far electrons 10 The shaded row in the table is called a A column B family C group D period

4 11 In the chemical formula for ammonia, NH3, what does the subscript 3 represent? A The number of nitrogen and hydrogen atoms in each molecule of ammonia B The number of hydrogen atoms in each molecule of ammonia C The number of ammonia molecules that will bond together D The number of nitrogen atoms in each molecule of ammonia 12 The diagram above shows a block from the periodic table. The number six represents the A atomic mass of the element carbon B number of valence electrons in the element carbon C atomic number of the element carbon D number of neutrons in the element carbon 13 According to the data in the table, which sample of matter is most likely a metal? A 3 B 1 C 4 D 2 14 Directions: Type your answer in the box. Use a whole number. Ca + 2H 2 O Ca(OH) 2 + H 2 How many different elements are involved in the chemical reaction shown?

5 15 When a metal bonds with a nonmetal, which type of bond is created? A Covalent B Metals never bond with nonmetals C Metallic D Ionic 16 Which process is a physical change? A Tarnishing silver B Burning coal C Rusting iron D Melting ice 17 According to this equation, what happened to the carbon and oxygen? A They combined chemically to form a new compound. B They combined physically to form a new mixture. C They combined physically to form a new element. D They combined chemically to form carbon and oxygen. 18 What might be a concern raised by community members if they were told that a nuclear power plant was going to be built in their neighborhood? A The threat of a nuclear accident or spill B Coal could be used to produce more energy per gram of fuel C Excessive use of petroleum would leak into the water under the ground D The air pollution generated by the plant 19 Which of the following is an example of potential energy? A A glass jar sitting on a shelf B A ball rolling along a sidewalk C A flag waving in the wind D A battery powering a radio 20 A burning candle is in the process of transforming A chemical energy into mechanical energy B heat energy into chemical energy C chemical energy into nuclear energy D chemical energy into light and heat

6 21 Thermometer number 1 represents temperatures in degrees A Fahrenheit B Kelvin C Celsius D Absolute 22 The volume of water in the pot decreases during this investigation. Water droplets form on the mirror when positioned over the pot. In this setup, water A vaporizes and then freezes B vaporizes and then condenses C condenses and then vaporizes D freezes and then vaporizes

7 23 A metal spoon was placed in a dish of ice cream and became cool. Which correctly describes the heat transfer process that resulted in the cooling of the spoon? A Conduction, because the spoon was in contact with the cold ice cream B Convection, because the spoon was in contact with the cold ice cream C Conduction, because cold air currents affected the temperature of the spoon D Convection, because cold air currents affected the temperature of the spoon 24 Section 1 on the periodic table represents the A nonmetals B metallions C metals D metalloids 25 Expansion joints such as these are put on bridges because the concrete expands and contracts. This happens when A the concrete gets wet B the amount of light changes C chemicals get on the concrete D the temperature changes

8 26 Balance the following equation: SO2 + O 2 + H 2 O H 2 A 2SO 2 + 2O 2 + 2H 2 O 2H 2 B + O 2 + H 4 O H 4 C 2SO 2 + O 2 + 2H 2 O 2H 2 D 2SO 2 + O 2 + H 2 O 2H 2