Question 1

When a living cell doubles in diameter,the amount of its material to be nourished is multiplied by eight,but the amount of membrane through which to feed it is multiplied by

Accepted Answer

A) 2) 
B) 4) 
C) 8) 
D) more than 8. 
A) 2) 
B) 4) 
C) 8) 
D) more than 8.

Question 2

Flatten a spherical meatball into a hamburger and you increase its

Accepted Answer

A) surface area. 
B) volume. 
C) both of the above 
D) none of the above 
A) surface area. 
B) volume. 
C) both of the above 
D) none of the above

Question 3

A wooden block has a mass of 1000 kg and a volume of 2 cubic meters.What is the block's density?

Accepted Answer

A) 100 kg per cubic meter 
B) 200 kg per cubic meter 
C) 500 kg per cubic meter 
D) 1000 kg per cubic meter 
E) none of these 
A) 100 kg per cubic meter 
B) 200 kg per cubic meter 
C) 500 kg per cubic meter 
D) 1000 kg per cubic meter 
E) none of these

Question 4

Eight little spheres of mercury coalesce to form a single sphere.Compared to the combined surface areas of the eight little spheres,the surface area of the big sphere is

Accepted Answer

A) less. 
B) the same. 
C) greater. 
A) less. 
B) the same. 
C) greater.

Question 5

Which cooks faster in boiling oil?

Accepted Answer

A) a whole potato. 
B) a sliced potato. 
C) Both cook the same. 
A) a whole potato. 
B) a sliced potato. 
C) Both cook the same.

Question 6

If an elephant grew to twice its height,the area of its ears would be about

Accepted Answer

A) twice what it was. 
B) four times what it was. 
C) six times what it was. 
D) eight times what it was. 
E) none of these 
A) twice what it was. 
B) four times what it was. 
C) six times what it was. 
D) eight times what it was. 
E) none of these

Question 7

Use the following figure to answer the question : 
-When weight is applied to the top of a stone arch,all of the stone blocks in the arch undergo

Accepted Answer

A) tension. 
B) compression. 
C) expansion. 
D) change of phase. 
A) tension. 
B) compression. 
C) expansion. 
D) change of phase.

Question 8

Compared to the density of a kilogram of feathers,the density of a kilogram of lead is

Accepted Answer

A) less. 
B) more. 
C) the same. 
A) less. 
B) more. 
C) the same.

Question 9

A dome-shaped house is more heat efficient than a rectangular house because a dome has

Accepted Answer

A) no corners to radiate. 
B) less inner space. 
C) less area compared to its volume. 
D) all of these 
E) none of these 
A) no corners to radiate. 
B) less inner space. 
C) less area compared to its volume. 
D) all of these 
E) none of these

Question 10

Doubling the linear size of an object multiplies its area by

Accepted Answer

A) 2 and its volume by 4. 
B) 4 and its volume by 8. 
C) 8 and its volume by 16. 
D) none of these 
A) 2 and its volume by 4. 
B) 4 and its volume by 8. 
C) 8 and its volume by 16. 
D) none of these

Question 11

If object A in your left hand and object B in your right hand both have the same weight density,then they

Accepted Answer

A) may have quite unequal mass densities. 
B) have equal mass densities. 
C) are equal in weight. 
A) may have quite unequal mass densities. 
B) have equal mass densities. 
C) are equal in weight.

Question 12

Which has more skin,an elephant or a mouse?

Accepted Answer

A) elephant 
B) mouse 
C) typically,both the same 
A) elephant 
B) mouse 
C) typically,both the same

Question 13

Use the following figure to answer the question:  
-A spring is stretched 10 cm by a suspended 1-kg block.If two such springs side-by-side are used to suspend the block,so each spring supports half the weight of the block,then each spring will stretch

Accepted Answer

A) 5 cm. 
B) 10 cm. 
C) 20 cm. 
D) 30 cm. 
E) none of these 
A) 5 cm. 
B) 10 cm. 
C) 20 cm. 
D) 30 cm. 
E) none of these

Question 14

Compared to a 50-kg person,a 100-kg person at the beach requires

Accepted Answer

A) more than twice as much suntan lotion. 
B) the same amount of suntan lotion. 
C) less than twice as much suntan lotion. 
A) more than twice as much suntan lotion. 
B) the same amount of suntan lotion. 
C) less than twice as much suntan lotion.

Question 15

A candymaker is making taffy apples.If she buys 100 kg of small apples rather than 100 kg of large apples,she will need

Accepted Answer

A) less taffy. 
B) more taffy. 
C) the same amount of taffy. 
A) less taffy. 
B) more taffy. 
C) the same amount of taffy.

Question 16

Compared to a bar of pure gold,the density of a pure gold ring is

Accepted Answer

A) less. 
B) the same. 
C) slightly more. 
D) much more. 
A) less. 
B) the same. 
C) slightly more. 
D) much more.

Question 17

If the mass of an object were to double while its volume remains the same,its density would

Accepted Answer

A) halve. 
B) double. 
C) stay the same. 
D) become four times as great. 
A) halve. 
B) double. 
C) stay the same. 
D) become four times as great.

Question 18

An elephant eats less for its size than smaller animals because

Accepted Answer

A) its ears are bigger. 
B) its radiating area is small compared to its volume. 
C) its radiating area is large compared to its volume. 
D) it is taller than other animals. 
E) it weighs more than smaller animals. 
A) its ears are bigger. 
B) its radiating area is small compared to its volume. 
C) its radiating area is large compared to its volume. 
D) it is taller than other animals. 
E) it weighs more than smaller animals.

Question 19

If an elephant grows to twice its normal height,its weight will be multiplied by about

Accepted Answer

A) 2) 
B) 4) 
C) 6) 
D) 8) 
E) none of these 
A) 2) 
B) 4) 
C) 6) 
D) 8) 
E) none of these

Question 20

The effects of scaling are beneficial to small creatures

Accepted Answer

A) that get wet. 
B) that fall from great heights. 
C) who are hungry. 
D) all of these 
E) none of these 
A) that get wet. 
B) that fall from great heights. 
C) who are hungry. 
D) all of these 
E) none of these

Exam 12: Solids

When a living cell doubles in diameter,the amount of its material to be nourished is multiplied by eight,but the amount of membrane through which to feed it is multiplied by

Flatten a spherical meatball into a hamburger and you increase its

A wooden block has a mass of 1000 kg and a volume of 2 cubic meters.What is the block's density?

Eight little spheres of mercury coalesce to form a single sphere.Compared to the combined surface areas of the eight little spheres,the surface area of the big sphere is

Which cooks faster in boiling oil?

If an elephant grew to twice its height,the area of its ears would be about

Use the following figure to answer the question : -When weight is applied to the top of a stone arch,all of the stone blocks in the arch undergo

Compared to the density of a kilogram of feathers,the density of a kilogram of lead is

A dome-shaped house is more heat efficient than a rectangular house because a dome has

Doubling the linear size of an object multiplies its area by

If object A in your left hand and object B in your right hand both have the same weight density,then they

Which has more skin,an elephant or a mouse?

Use the following figure to answer the question: -A spring is stretched 10 cm by a suspended 1-kg block.If two such springs side-by-side are used to suspend the block,so each spring supports half the weight of the block,then each spring will stretch

Compared to a 50-kg person,a 100-kg person at the beach requires

A candymaker is making taffy apples.If she buys 100 kg of small apples rather than 100 kg of large apples,she will need

Compared to a bar of pure gold,the density of a pure gold ring is

If the mass of an object were to double while its volume remains the same,its density would

An elephant eats less for its size than smaller animals because

If an elephant grows to twice its normal height,its weight will be multiplied by about

The effects of scaling are beneficial to small creatures

About Science

Newtons First Law of Motion: Inertia

Linear Motion

Newtons Second Law of Motion: Force and Acceleration

Newtons Third Law of Motion: Action and Reaction

Momentum

Energy

Rotational Motion

Gravity

Projectile and Satellite Motion

Atomic Nature of Matter

Liquids

Gases and Plasmas

Temperature,heat,and Expansion

Heat Transfer

Change of Phase

Thermodynamics

Vibrations and Waves

Sound

Musical Sounds

Electrostatics

Electric Current

Magnetism

Electromagnetic Induction

Properties of Light

Color

Reflection and Refraction

Light Waves

Light Emission

Light Quanta

The Atom and the Quantum

Atomic Nucleus and Radioactivity

Nuclear Fission and Fusion

Special Theory of Relativity

General Theory of Relativity

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