Transcript Physical Science Exam Review

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 convection
5. 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 solutes
19.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 solution
28.An inclined plane is a slanted surface used to
raise an object
29.Differences between static discharge and
electric current
30.The oceans are a liquid solution
31.Centripetal force
32.How to speed up the solution process
Multiple Choice
33.What chemical symbols represent
34.How does increasing the speed affect
potential energy.
35.Inertia
36.8 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 solutions
41.Mass Number= number of protons
42.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 reactions
46.Sources of constant electric current.
47.Definition of isotopes.
48.Conductors and insulators
49.Definition of titration
50.Amplitude measures wave energy.
51.An electron moves around a nucleus
52.Acceleration due to gravity
Multiple Choice
53.Properties of bases
54.Power = rate at which work is done.
55.Formulas of acids
56.According to the law of conservation of energy
the energy in the universe remains constant.
57.Kilo- = 1000
58.F=ma Newton’s 2nd law
59.Feathers fall slower due to air resistance.
60.pH of acids and bases.
Multiple Choice
61.Lightning is a large discharge of static electricity
62.S is the SI unit for time
63.Watts are units of power
64.An alloy is a solid solution.
65.Joules are SI units for energy.
66.Definition of solubility
67.Chemical changes
68.Chemical Formulas
Multiple Choice
69.Definition of mixture
70.Definition of motion
71.Hydronium ions
72.Acceleration = rate of change of velocity
73.Nonelectrolyte=solution that does not conduct
electricity
74.Solution=homogeneous mixture.
75.Air resistance
76.Static electricity
Multiple Choice
77.Electric powerLever=bar that moves around a
fixed point.
78.Simple machine
79.Kinetic energy
80.Parallel circuit
81.Ohm’s law
82.Physical properties
83.Strong vs. weak bases
84.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.Subscripts
88.Indicators
89.A compound is not a mixture.
90.The SI system is based on multiples of ten.
Multiple Choice
91. Solvent vs. solute
92. Newton’s 1st law
93. Acids produce hydronium ions in solution
94. pH measures how acidic or basic a solution is
95. Name a compound
96. Series circuit
97. Periods on the periodic table
98. Columns on the periodic table
99. Volts and amps
100.Sources of electric current
Multiple Choice
Multiple Choice
Multiple Choice
Multiple Choice