Conceptual Physics Final Review Chapters 11-14
Doubling the linear size of an object multiplies its area by a) 4 and its volume by 8 b) 2 and its volume by 4 c) 8 and its volume by 16 d) none of these
a) 4 and its volume by 8
Tripling the linear size of an object multiplies its area by a) 9 and its volume by 27 b) 9 and its volume by 18 c) 3 and it's volume by 9 d) 27 and its volume by 81
a) 9 and its volume by 27 a=3^2 = 9 v=3^3 = 27
If a gram of antimatter meets a kilogram of matter, the amount of mass to survive is a) 999 grams b) 1 gram c) 1 kilogram d) 1.1 kilogram
a) 999 grams
In drinking soda or water through a straw, we make use of a) atmospheric pressure b) capillary action c) surface tension d) Bernoulli's principle
a) atmospheric pressure
In a vacuum, an object has no a) buoyant force b) temperature c) weight d) mass e) all of these
a) buoyant force
When an object is partly or wholly immersed in a liquid, it is buoyed up a) by a force equal to the weight of liquid displaced b) but nevertheless sinks c) and floats because of Archimedes principle d) by a force to its own weight e) none of these
a) by a force equal to the weight of liquid displaced
An empty jar is pushed open-side downward into water so that air is trapped in it cannot get out. As it is pushed deeper, the buoyant force on the jar a) decreases b) increases c) remains the same
a) decreases
When gas in a container is squeezed to half its volume and the temperature remains the same, the gas pressure a) doubles b) halves c) remains the same d) quadruples
a) doubles
The main difference between gases and plasmas has to do with a) electrical conduction b) the kinds of elements involved c) interatomic spacing d) the proportion of matter to antimatter in the universe e) fluid pressure
a) electrical conduction
A kg of peaches have more skin area than a kg of a) grapefruits b) blueberries c) grapes d) each has the same skin area
a) grapefruits
As a woman holding her breath swims deeper and deeper beneath the water's surface, her density a) increases b) remains the same c) decreases
a) increases
Pumice is volcanic rock that floats. Its density is a) less than the density of water b) more than the density of water c) equal to the density of water
a) less than the density of water
In cold weather, your hands will be warmer if you wear a) mittens b) gloves c) both will be the same
a) mittens
Atoms heavier than hydrogen were made by a) nuclear fusion b) radiant energy conversion c) radioactivity d) photosynthesis
a) nuclear fusion
In an electrically neutral atom, the number of protons in the nucleus is balanced by an equal number of a) orbital electrons b) quarks c) neutrons d) none of these
a) orbital electrons
The buoyant force on an object is least when the object is a) partially submerged b) submerged near the bottom c) submerged near the surface d) none of these
a) partially submerged
In our universe, antimatter is a) short-lived b) plentiful c) long-lived d) non-existent
a) short-lived
Flatten a spherical meat ball into a hamburger and you increase its a) surface area b) volume c) both of these d) neither of these
a) surface area
A hydraulic press multiplies a force by 100. This multiplication is done at the expense of a) the distance through which the force acts b) the mechanism providing the force c) energy, which is divided by 100 d) the time through which the force acts, which is multiplied by 100 e) none of these
a) the distance through which the force acts
What makes an isotope distinct? a) the number of neutrons b) the number of protons c) the number of electrons d) none of these
a) the number of neutrons
What makes an element distinct? a) the number of protons b) the number of electrons c) the number of neutrons d) the total mass of all the particles
a) the number of protons
Compared to a bar of pure gold, the density of a pure gold ring is a) the same b) less c) much more d) slightly more
a) the same
Compared to the buoyant force of the atmosphere on a 1 liter helium filled balloon, the buoyant force of the atmosphere on a nearby 1 liter solid iron block is a) the same b) considerably more c) considerably less
a) the same
Compared to the buoyant force of the atmosphere on a 1-liter helium-filled balloon, the buoyant force of the atmosphere on a nearby 1 liter solid iron block is a) the same b) considerably less c) considerably more
a) the same
When a chocolate bar is cut in half, its density is a) unchanged b) doubled c) halved
a) unchanged
Which of these atoms has the greatest number of electrons? a) uranium b) helium c) carbon d) oxygen e) hydrogen
a) uranium
A balloon is buoyed up with a force equal to the a) weight of air it displaces b) weight of the balloon and contents c) density of surrounding air d) atmospheric pressure e) all of these
a) weight of air it displaces
Buoyant force is greatest on a submerged a) 1 kg block of lead b) 1 kg block of aluminum c) is the same on each
b) 1 kg block of aluminum
Which potatoes when peeled produce the most peelings? a) 10 kg of large potatoes b) 10 kg of small potatoes c) they both produce the same amount
b) 10 kg of small potatoes
A metal block has a density of 5000 kg per cubic meter and a volume of 2 cubic meters. What is the block's mass? a) 1000 kg b) 10,000 kg c) 5000 kg d) 2500 kg
b) 10,000 kg d=m/v = 5000 kg/m^3 = x / 2m^3 (density 5000 kg/m^3 equals mass x divided by volume 2 m^3) 1st, get rid of m^3 from the fraction. m^3 cancels out m^3, 5000kg = x/2 2nd get rid of 2 from the fraction. 5000 kg (2) = x (2) / 2 The bottom 2 from the fraction cancels out the 2 next to x. Next, multiply 5000 with 2. 10,000 kg = x ----> Density equals 10,000 kg
A weightless spring is stretched 10 cm by a suspended 1 kg block. If two such springs are used to suspend the block, one spring above the other, to effectively provide one double-length spring, then the total stretch of the double-length spring will be a) 30 cm b) 20 cm c) 10 cm d) 5 sm
b) 20 cm
A metal block has a density of 5000 kg per cubic meter and a mass of 15,000 kg. What is its volume? a) 15 cubic meters b) 3 cubic meters c) 5 cubic meters d) 0.33 cubic meters
b) 3 cubic meters
A metal block has a mass of 5 grams and a volume of 1 cubic centimeter. A piece of the same kind of metal with a volume of 2 cubic centimeters has a density of a) 2.5 g/cc b) 5 g/cc c) 10 g/cc
b) 5 g/cc
A strong spring is stretched 10 cm by a suspended weight. If the weight is doubled, the spring will stretch a) no more b) another 10 cm, making the total stretch 20 cm b) another 30 cm, making the total stretch 40 cm c) another 5 cm, making the total stretch 15 cm e) more than another 30 cm
b) another 10 cm, making the total stretch 20 cm
If a weighted air-filled balloon sinks in deep water, it will a) likely sink to an equilibrium level before reaching the bottom b) be acted on by a continuously decreasing buoyant force c) likely burst if water pressure is great enough d) become less dense as it sinks e) none of these
b) be acted on by a continuously decreasing buoyant force
Stone slabs are stronger under a) tension b) compression c) same strength
b) compression
A loaf of bread is compressed, its a) molecules become harder b) density increases c) density decreases d) surface tension becomes less e) none of these
b) density increases
If the mass of an object were to double while its volume remains the same, its density would a) stay the same b) double c) halve d) become four times as great
b) double D=m/v = 2/1 (2x the mass, volume remains the same) D=2
A force that determines the chemical properties of an atom is a a) friction force b) electrical force c) nuclear force d) gravitational force
b) electrical force
If a battleship sinks in a canal lock, the water level in the lock will a) rise b) fall c) remain unchanged
b) fall
Lobsters live on the bottom of the ocean. The density of a lobster is a) less than the density of sea water b) greater than the density of sea water c) equal to the density of sea water
b) greater than the density of sea water
If the volume of an object were to double while it's mass stays the same, its density would a) double b) halve c) stay the same d) become four times as great
b) halve
If one neutron is added to a helium nucleus, the result is a) boron b) helium c) beryllium d) hydrogent e) litium
b) helium
An iron block is placed in a furnace where it is heated and consequently expands. In the expanded condition, its density a) is more b) is less c) is the same
b) is less
In a vacuum, a marshmallow becomes a) smaller b) larger c) flat d) a hollow shell e) none of the above choices
b) larger
Compared to an empty ship, the same ship loaded with styrofoam will float a) at the same level in the water b) lower in the water c) higher in the water
b) lower in the water
Compared to the mass of a liter of feathers, the mass of a liter of lead is a) the same b) more c) less
b) more
A candymaker is making taffy apples. If she buys 100 kg of small apples rather than 100 kg of large apples, she will need a) less taffy b) more taffy c) the same amount of taffy
b) more taffy
A block of wood weighing 5 N in air, is difficult to fully submerge in a pool of mercury because the buoyant force when fully submerged is a) less than 5 N b) more than 5 N c) 5 N
b) more than 5 N
If you make cupcakes and bake them as directed for a cake, you will find the cupcakes a) properly baked b) overbaked c) underbaked
b) overbaked
A suction cup sticks to a wall. It is a) pulled to the wall by the vacuum b) pushed to the wall by the atmosphere c) both of these d) neither of these
b) pushed to the wall by the atmosphere
Which of the following bodies is comprised mostly of plasma? a) Earth b) Sun c) Moon
b) sun
Which of the following bodies is comprised mostly of plasma? a) moon b) sun c) earth d) all of these e) none of these
b) sun
When holes are drilled through the wall of a water tower, water will spurt out the greatest horizontal distance from the hold closest to a) the middle of the tower b) the bottom of the tower c) the top of the tower d) the horizontal distance will be the same for all holes
b) the bottom of the tower
Compared to the atoms that make up the body of an elderly person, the atoms that make up the body of a newborn baby are a) actually older b) the same age c) newr
b) the same age
Suspend a pair of Ping-Pong balls from two strings so there is a small space between them. If you blow air between the balls, they will swing a) apart from each other b) toward each other c) away from the air stream, but not necessarily toward or apart from each other.
b) toward each other
How many different elements are in a water molecule? a) one b) two c) three d) four e) none
b) two `
The density of a submerged submarine is about the same as the density of a) iron b) water c) a floating submarine d) a crab e) none of these
b) water
You wish to bolt a sign to a horizontal I-beam supporting a bridge. You will weaken the beam least if you drill the bolt-holes through the a) lower flange b) web c) upper flange d) all of these will have the same effect
b) web
What is the buoyant force acting on a 10-ton ship floating in the ocean? a) more than 10 tons b) less than 10 tons c) 10 tons d) depends on density of sea water
c) 10 tons
A rock suspended by a string weighs 5 N out of water and 3N when submerged. What is the buoyant force on the rock? a) 5 N b) 3 N c) 2 N d) 8 N e) none of these
c) 2 N 5N-3N=2N 5 N minus 3 N equals 2N
A wooden block has a mass of 1000 kg and a volume of 2 cubic meters. What is the blocks density? a) 200 kg per cubic meter b) 1000 kg per cubic meter c) 500 kg per cubic meter d) 100 kg per cubic meter
c) 500 kg per cubic meter D=m/v = 1000 kg/2 m^3 D=1000/2 D=500 kg/m^3
Which of these statements are true a) Molecules form atoms that in turn determine chemical properties of a substance b) A molecule is the smallest particle that exists c) Molecules are the smallest subdivision of matter that still retains chemical properties of a substance d) Chemical elements are made up of about 100 distinct molecules e) none of these statements are true
c) Molecules are the smallest subdivision of matter that still retains chemical properties of a substance
Nuclei of atoms that make up a newborn baby were made in a) the Earth b) the mother's womb c) ancient starts d) the food the mother eats before giving birth d) none of these
c) ancient stars
As a helium-filled balloon rises in the air, it becomes a) heavier b) more dense c) bigger d) all of these e) none of these
c) bigger
Which has the greater density, a lake full of water or a cup full of lake water? a) the cup full of lake water b) the lake full of lake water c) both have the same density d) it is impossible to tell without knowing the size of the lake
c) both have the same density
A fish normally displaces its own a) volume of water b) weight of water c) both of these d) neither of these
c) both of these
The pressure in a liquid depends on liquid a) depth b) density c) both of these d) neither of these
c) both of these
Water pressure is greatest against the a) sides of a submerged object b) top of a submerged object c) bottom of a submerged object d) is the same against all surfaces
c) bottom of a submerged object
On a windy day, atmospheric pressure a) remains unchanged b) increases c) decreases
c) decreases
Solid matter is mostly empty space. The reason solids don't fall through one another is because a) of gravitational force b) of nuclear forces c) of electrical forces d) atoms are constantly vibrating, even at absolute zero e) none of these
c) electrical forces
Suppose you are standing on a weighing scale and all of a sudden the atmosphere vanished. The reading on the scale would a) remain the same b) decrease c) increase d) quickly reduce to zero
c) increase
Suppose all sized potatoes are selling at the same price per kg. If you peel them for mashing, you will get more potato for your money if you buy a) medium potatoes b) small potatoes c) large potatoes d) makes no difference
c) large potatoes
The faster a fluid moves, the a) internal pressure is unaffected b) greater its internal pressure c) less its internal pressure
c) less its internal pressure
A liter-sized block of ordinary wood floats in water. the amount of water displaced is a) more than 1 litier b) 1 liter c) less than 1 liter d) depends on the water density e) none of these
c) less than 1 liter
Compared to the density of a kilogram of feathers, the density of a kilogram of lead is a) less b) the same c) more
c) more
Alcohol is less dense than water. If alcohol is used to make a barometer on a day when atmospheric pressure is normal, the height of the alcohol column would be a) 10.3 m b) less than 10.3 m c) more than 10.3 m
c) more than 10.3 m
The reason a granite block is mostly empty space is that the atoms in the granite are a) not as close together as they could be b) held together by electrical forces c) mostly empty space themselves d) in perpetual motion e) invisible
c) mostly empty space themselves
Which of the following are electrically neutral a) proton b) ion c) neutron d) electron
c) neutron
The weight of matter comes mostly from its a) electrons b) size c) nucleus
c) nucleus
When an ice cube in a glass of water melts, the water level a) falls b) rises c) remains the same
c) remains the same
Two life preservers have identical volumes, but one is filled with styrofoam while the other is filled with sand. When the two life preservers are fully submerged, the buoyant force is greater on the one filled with a) styrofoam b) sand c) same on each as long as their volume are the same
c) same on each as long as their volume are the same
Consider two mercury barometers, one with twice the cross-sectional area of the other. Neglecting capillarity, mercury in the smaller tube will rise a) more than four times as high as in the larger tube b) twice as high as mercury in the larger tube c) the same height as in the larger tube d) four times as high as mercury in the larger tube e) none of these
c) the same height as in the larger tube
The reason that buoyant force acts upward on a submerged object is that a) the weight of fluid displaced reacts with an upward force b) it acts in a direction to oppose gravity c) upward pressure against the bottom is greater than downward pressure against the top of the submerged object d) if it acted downward, nothing would float
c) upward pressure against the bottom is greater than downward pressure against the top of the submerged object
as a high-altitude balloon sinks lower and lower into the atmosphere, it undergoes a decrease in a) weight b) density c) volume d) mass e) none of these
c) volume
A completely submerged object always displaces its own a) density of fluid b) weight of fluid c) volume of fluid d) all of these e) none of these
c) volume of fluid
Consider the fictional case of the incredible shrinking man. If he shrinks proportionally to 1/10 his original height, his weight will be multiplied by a) 0.01 b) 0.0001 c) 0.1 d) 0.001
d) 0.001
If a pencil's length and diameter are both multiplied by 10, then its volume is multiplied by a) 10,000 b) 100 c) 10 d) 1000
d) 1000 10 cm^3 = 1000
The mass of a cubic meter of water is a) 1 kg b) 100 kg c) 10 kg d) 1000 kg e) 9800 N
d) 9800 N
Atmospheric molecules do not fly off into outer space because of a) cohesive forces b) their relatively low densities c) their relatively high speeds d) Earth gravitation
d) Earth gravitation
A molecule has a) structure b) mass c) energy d) all of these
d) all of these
The air in this room has a) energy b) mass c) weight d) all of these e) none of these
d) all of these
Surface tension is a direct result of a) Archimedes' principle b) Bernoulli's principle c) adhesive forces between molecules in a liquid or solid d) cohesive forces between molecules in a liquid e) viscosity
d) cohesive forces between molecules in a liquid
In a hydraulic-press operation, it is impossible for the a) output displacement to exceed the input displacement b) output piston's speed to exceed the input piston's speed c) force output to exceed the force input d) energy output to exceed the energy input e) none of these
d) energy output to exceed the energy input
Ice cubes submerged at the bottom of a liquid indicate that the liquid a) has dissolved air b) is warmer than the ice c) is not displaced by the submerged ice d) is less dense than ice e) produces no buoyant force on the ice
d) is less dense than ice
a one-ton blimp hovers in the air. The buoyant force acting on it is a) less than one ton b) zero c) more than one ton d) one ton
d) one ton
When a common fluorescent lamp is on, the conducting mercury vapor inside is actually in a a) solid state b) liquid state c) gaseous state d) plasma state
d) plasma state
If an astronaut landed on a planet made of antimatter, there would be an explosion and a) the planet would annihilate b) the astronaut would annihilate c) an amount of planet matter equal to that of the astronaut would annihilate d) the astronaut and an equal amount of the planet would both annihilate
d) the astronaut and an equal amount of the planet would both annihilate
The volume of water is displaced by a floating 20-ton boat a) is 20 cubic meters b) is the volume of the boat c) depends on the shape of the ship's hull d) is the volume of 20 tons of water e) none of these
d) the volume of 20 tones of water
The reason a life jacket helps you float is a) the jacket has the same density as an average human b) the jacket makes you weigh less c) the jacket repels water d) if you sink, the jacket sinks e) the density of both you and the jacket together is less than your density alone
e) the density of both you and the jacket together is less than your density alone
