Physical Science

Semester Exam Review

True and False

1. Winds are examples of convection currents.2. The type of solution depends on the state of

the solute.3. The particles of any liquid are constantly

moving.4. In a forced-air heating system, the warm air

circulates by convection5. When an object falls, it is reacting to the force

of gravity.

True and False

6. The concentration of a liquid solution can be expressed in terms of the percentage by volume of the solute.

7. Particles of liquids and gases move much more freely than do particles of solids

8. The terminal velocity is the highest velocity that will be reached by a falling object.

9. Objects in Earth's orbit appear to be weightless because they are in free fall.

10. Vitamin C has several oxygen-to-hydrogen bonds resembling those found in water, making Vitamin C polar.

True and False

11.When water dissolves sugar, the positive ends of the water molecules are attracted to the negative ends of the sugar molecules.

12.Radiation is the transfer of energy in the form of waves.

13.Non-polar materials do not have separated positive and negative areas.

14.In hydrocarbons, carbon and hydrogen atoms share electrons in an unequal manner.

True or False

15.Jane is on a merry-go-round that is moving at a constant speed. Her velocity is not constant

16.Conduction is the transfer of energy by the bulk movement of matter.

17.Salad oil does notdissolve readily in vinegar.18.Oil-based paints, nail polish, and iodine are

examples of polar solutes19.Acceleration is defined as the rate of change of

velocity

True or False

20.Increasing temperature always increases the solubility of a solid in a liquid solvent.

21.Friction is a force that discourages motion between two surfaces that are touching each other.

22.The momentum of a 5,000-kg truck that is standing still is zero.

23.The dissolving process for solid solutions occurs in a liquid state.

True or False

24.Momentum is a property of an object and can be transferred from that object to another object.

25.Unbalanced forces acting on an object cause the object to accelerate.

26. A drink advertised as having 10% fruit juice has a concentration of 10% by volume of the fruit juice.

Multiple Choice

27.Bases produce OH- ions in solution28.An inclined plane is a slanted surface used to

raise an object29.Differences between static discharge and

electric current30.The oceans are a liquid solution31.Centripetal force32.How to speed up the solution process

Multiple Choice

33.What chemical symbols represent34.How does increasing the speed affect

potential energy.35.Inertia36.8 electrons make the outer level stable.37.Gases dissolve faster in liquids when they are

cold.38.Resistance is measured in volts.

Multiple Choice

39. Instantaneous speed=the speed on a spedometer.

40.Saturated solutions41.Mass Number= number of protons42.Adding solute to a solution increases its boiling

point.43.A wedge is an inclined plane with two sides.’44.Car engines transfer chemical energy to

mechanical energy.

Multiple Choice

45.Types of reactions46.Sources of constant electric current.47.Definition of isotopes.48.Conductors and insulators49.Definition of titration50.Amplitude measures wave energy.51.An electron moves around a nucleus52.Acceleration due to gravity

Multiple Choice

53.Properties of bases54.Power = rate at which work is done.55.Formulas of acids56.According to the law of conservation of energy the

energy in the universe remains constant.57.Kilo- = 100058.F=ma Newton’s 2nd law59.Feathers fall slower due to air resistance.60.pH of acids and bases.

Multiple Choice

61.Lightning is a large discharge of static electricity62.S is the SI unit for time63.Watts are units of power64.An alloy is a solid solution.65. Joules are SI units for energy.66.Definition of solubility67.Chemical changes68.Chemical Formulas

Multiple Choice

69. Definition of mixture70. Definition of motion71. Hydronium ions72. Acceleration = rate of change of velocity73. Nonelectrolyte=solution that does not conduct

electricity74. Solution=homogeneous mixture.75. Air resistance76. Static electricity

Multiple Choice

77. Electric powerLever=bar that moves around a fixed point.

78. Simple machine79. Kinetic energy80. Parallel circuit81. Ohm’s law82. Physical properties83. Strong vs. weak bases84. Convert from cm to m

Multiple Choice

85.Increasing the surface increases the rate of solution.

86.Given a formula find the number of each type of atom.

87.Subscripts88.Indicators89.A compound is not a mixture.90.The SI system is based on multiples of ten.

Multiple Choice

91. Solvent vs. solute92. Newton’s 1st law93. Acids produce hydronium ions in solution94. pH measures how acidic or basic a solution is95. Name a compound96. Series circuit97. Periods on the periodic table98. Columns on the periodic table99. Volts and amps100.Sources of electric current

Multiple Choice

Multiple Choice

Multiple Choice

Multiple Choice