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Physical Science Final Exam Study Review
Use this to help you study for the final exam. The correct answers are at the
end.
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1. ____ is the rate of change of velocity; it can be calculated by dividing the change in velocity by the time it
takes the change to occur.
a. speed b. acceleration
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2. ____ is the study of sound.
a. acoustics b. music
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3. ____ is the force that opposes the motion of objects that move through the air.
a. gravity b. air resistance
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4. ____ is a mixture of elements that has metallic properties.
a. alloy b. metal
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5. ____ is the measure of the energy carried by a wave.
a. acoustics b. a mplitude
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6. ____ is the smallest particle of an element that still retains the properties of the element.
a. atom b. element
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7. ____ is the number of protons in an atom’s nucleus.
a. atomic number b. atomic mass
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8. ____ is a chemical equation with the same number of atoms of each element on both sides of the equation.
a. balanced chemical equation b. atomic number
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9. ____ is a compound composed of two elements.
a. trianry compound b. binary compound
____ 10. ____ is the temperature at which the pressure of the vapor in the liquid is equal to the external pressure acting
on the surface of the liquid.
a. boiling point b. freezing point
____ 11. ____ is the ability of a fluid-a liquid or a gas-to exert an upward force on an object immersed in the fluid.
(ability to float.)
a. pressure b. buoyancy
____ 12. ____ is a substance that speeds up a chemical reaction without being permanently changed itself.
a. chain reaction b. catalyst
____ 13. ____ is net force that is directed toward the center of a curved or circular path.
a. gravity b. centripetal force
____ 14. ____ is an ongoing series of fission reactions.
a. radiation b. chain reaction
____ 15. ____ is the force that holds atoms together in a compound
a. chemical bond b. element
____ 16. ____ is a change of one substance into a new substance.
a. chemical bond b. chemical change
____ 17. ____ is chemical shorthand that uses symbols to tell what elements are in a compound and their ratios.
a. formula b. bond
____ 18. ____ is any characteristic of a substance such as flammability, that indicates whether or not it can undergo a
chemical change.
a. change b. chemical property
____ 19. ____ is a closed conducting loop through which an electric current can flow.
a. wires b. circuit
____ 20. ____ is the number in a chemical equation that represents the number of units of each substance taking part in
a chemical reaction.
a. exponent b. coefficient
____ 21. ____ is a substance formed from two or more elements in which the exact combination of elements is always
the same.
a. compound b. substance
____ 22. ____ is machine that is a combination of two or more simple machines.
a. compound machine b. tool
____ 23. ____ is the variable in an experiment that does not change.
a. control b. constant
____ 24. ____ is the standard used for comparison of test results in an experiment.
a. constant b. control
____ 25. ____ is the highest point in a transverse wave.
a. top b. crest
____ 26. ____ is mass per unit volume of a material.
a. density b. element
____ 27. ____ is the spreading of particles throughout a given volume until they are uniformly distributed.
a. diffusion b. dispersion
____ 28. ____ is distance and direction of an object’s change in position from the starting point.
a. displacement b. distance
____ 29. ____ is how far an object moves.
a. displacement b. distance
____ 30. ____ is the ability of metals to be drawn into wires.
a. maluability b. ductile
____ 31. ____ is the area around the nucleus of an atom where the atom’s electrons are most likely to be found.
a. nucleus b. electron cloud
____ 32. ____ are particles that surrounds the center of an atom that have a charge of -1.
a. nucleus b. electrons
____ 33. ____ is an organized set of procedures for testing an hypothesis; it tests the effect of one thing on another
under controlled conditions.
a. lab b. experiment
____ 34. ____ is a push or pull exerted on an object.
a. force b. weight
____ 35. ____ is the force that opposes the sliding motion between two touching surfaces.
a. friction b. weight
____ 36. ____ is a visual display of information or data that can provide a quick way to communicate a lot of
information.
a. picture b. graph
____ 37. ____ is the attractive force between two objects due to their position above the Earth’s surface.
a. gravity b. force
____ 38. ____ is vertical column in the periodic table
a. group b. line
____ 39. ____ is the amount of time it takes for half the nuclei in a sample of radioactive isotope to decay.
a. decation b. half-life
____ 40. ____ is a compound that has water chemically attached to it.
a. hydrate b. waterable
____ 41. ____ is a resistance to change in motion.
a. inertia b. resistance
____ 42. ____ is substance that slows down a chemical reaction or prevents it from occuring by combining with a
reactant.
a. compound b. inhibitor
____ 43. ____ is a charged particle that has either more or fewer electrons than protons.
a. neutral b. ion
____ 44. ____ is atoms of the same element that have different numbers of neutrons.
a. isotope b. isotope
____ 45. ____ is the SI unit of energy.
a. joule b. newton
____ 46. ____ is the human perception of sound intensity.
a. soundy b. loudness
____ 47. ____ is a device that makes doing work easier.
a. machine b. mass
____ 48. ____ is the amount of matter in an object.
a. mass b. density
____ 49. ____ is the sum of the number of protons and nuetrons in the nucleus of the atom.
a. mass b. mass number
____ 50. ____ is an element that is typically hard, shiny solid, malleable, and is a good conductor of electricity.
a. nonmetal b. metal
____ 51. ____ is an element that shares some properties with metals and nonmetals.
a. metalloid b. nonmetal
____ 52. ____ is the sum of the forces that are acting on an object.
a. net force b. gravity
____ 53. ____ is a neutral particle, composed of quarks inside the nucleus of the atom.
a. proton b. neutron
____ 54. ____ states that an object tends to continue the motion it is in until something changes it.
a. Newton’s first law of motion b. Newton’s second law of motion
____ 55. ____ is the process of splitting an atomic nucleus into two or more nuclei with smaller masses.
a. fusion b. fission
____ 56. ____ is the positively charged center of an atom that contains protons and neutrons and is surrounded by an
electron cloud.
a. electron b. nucleus
____ 57. ____ is the measure of how acidic or basic a substance is.
a. pH b. acid
____ 58. ____ is any change in size, shape or state of matter in which the identify of the substance remains the same.
a. physical change b. chemical change
____ 59. ____ is the fourth state of matter. It consists of positively and negatively charged particles.
a. solid b. plasma
____ 60. ____ is the new substance formed in a chemical reaction.
a. reactant b. product
____ 61. ____ is a particle composed of quarks inside the nucleus of an atom with a positive charge.
a. proton b. neutron
____ 62. ____ is a particle of matter that makes up protons and neutrons.
a. material b. quark
____ 63. ____ is the substance that reacts in a reaction.
a. product b. reactant
____ 64. ____ is the tendency of a material to oppose electron flow or change electrical energy into thermal energy and
light.
a. resistance b. refraction
____ 65. ____ is something in nature that seems to be true all the time.
a. scientific law b. scientific theory
____ 66. ____ is the International System of Units. The improved, universally accepted version of the metric systgem
that is based on multiples of tens and includes the meter, liter, and kilogram.
a. SI b. metrics
____ 67. ____ is frictional force that opposes the motion of two surfaces sliding past each other.
a. rolling friction b. sliding friction
____ 68. ____ is the substance being dissolved, in a solution.
a. solvent b. solute
____ 69. ____ is the distance an object travels per unit of time.
a. speed b. displacement
____ 70. ____ is an element or compound that cannot be broken down into simplier components and maintain the
properties of the original substance.
a. element b. substance
____ 71. ____ is the application of science to help people.
a. scientific method b. technology
____ 72. ____ is an explanation of things or events that is based on knowledge gained from many observations and
investigations.
a. theory b. hypothesis
____ 73. ____ is the speed and direction of a moving object.
a. displacement b. velocity
____ 74. ____ is a fluid’s resistance to flow.
a. viscosity b. fluilidity
____ 75. ____ is the amount of space occupied by an object.
a. mass b. volume
____ 76. ____ is the chemical symbol for hydrogen
a. h b. H c. Hy
____ 77. ____ is the chemical symbol for oxygen.
a. o b. Ox c. O
____ 78. ____ is the chemical symbol for chlorine.
a. cl b. Cl c. C
____ 79. ____ is the chemical symbol for sodium.
a. S b. Na c. s
____ 80. ____ is chemical symbol for copper.
a. C b. Cu
____ 81. ____ is the chemical symbol for gold.
a. G b. Au
____ 82. There are ____ centimeters in a meter.
a. 10 b. 100 c. 1000
____ 83. The formula for density is ______.
a. D = m/v b. D = v/m
____ 84. The formula for speed is ____.
a. S = D/T b. S = T/D
____ 85. How many protons are in the nucleus of an hydrogen atom?
a. one b. two
____ 86. A magnesium atom has 12 protons and 12 neutrons. What is its mass number?
a. 24 b. 12
____ 87. John rode his bike 2.3 km to school. After school, he rode an additional 1.4 km to the mall in the opposite
direction. What is his total distance traveled?
a. 3.7 km b. .9 km
____ 88. An ant traveled 75 cm in 5 s. What was the ant’s speed?
a. 15 m/s b. 25 m/s2
____ 89. How many centimeters are in 4 meters?
a. 400 b. 4
____ 90. On a distance-time graph, time is the horizontal axis and ____ is the vertical axis.
a. time b. speed
____ 91. When a car slows down its speed is decreasing and the car has ___ acceleration.
a. positive b. negative c. no
____ 92. In a car crash, ___ causes an unrestrained passenger to continue moving at the speed of the car before the
crash.
a. gravity b. momentum c. inertia
____ 93. The greater the mass of an object, the ___ its inertia.
a. greater b. smaller
____ 94. What is the formula for calculating acceleration given force and mass?
a. a = m/f b. a = f/m
____ 95. What is the acceleration of a helicopter if its mass is 4500 kg and the net force on i8t is 18,000 n?
a. 4.0 m/s2 b. 3.0 m/s2
____ 96. Newton’s third law of motion says that for every ____ there is an equal and opposite reaction.
a. mass b. action
____ 97. The gravitational acceleration, g, near Earth’s surface equalks ___ m/s2.
a. 8.9 b. 9.8
____ 98. There are several forms of energy: electrical, chemical, radiant and _______.
a. thermal b. positive
____ 99. Stored energy is called ___ energy.
a. kinetic b. potential
____ 100. ___ energy is the energy of moving objects or energy in motion.
a. kinetic b. potential
Physical Science Final Exam
Answer Section
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