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IIT-JEE & NEET LEVEL - 15 (8-0)

Total questions: 100

Worksheet time: 2hrs 40mins

Name
Class
Date
1.

What is heat?

a)

a form of light

b)

a form of energy

c)

a measure of how old or cold something is

2.

What is temperature?

a)

a form of heat

b)

a form of energy

c)

a measure of how old or cold something is

d)

something to measure how hot or cold an object is

3.

Which is NOT a heat source?

a)

the Sun

b)

iron

c)

oven

d)

pot

4.

What happens when something gains heat?

a)

it becomes hotter

b)

it becomes colder

5.

What happens during heat gain?

a)

the object will expand

b)

the object will contract

6.

What happens during heat loss?

a)

the object will expand

b)

the object will contract

7.

What happens when something loses heat?

a)

it becomes hotter

b)

it becomes colder

8.

Which of the following shows heat gain?

a)

water turning into ice

b)

shivering in a cold room

c)

ice cream melting under the sun

d)

hot bowl of soup became room temperature

9.

Which of the following shows heat loss?

a)

boiling water

b)

eggs cooking on a pan

c)

ice cream melting under the sun

d)

hot bowl of soup becoming room temperature

10.

Which container has hot water in it?

a)

Container A

b)

Container B

11.

Which container has more heat?

a)

Container G

b)

Container H

12.

As part of a lab experiment, Tasha drops a metal cube into a beaker of water, as shown in the figure below.


After energy in the form of heat transfers between the substances, what is the final temperature of the water?

a)

The final temperature is 25 °C because there is more water than metal.

b)

The final temperature is 50 °C because the metal warms the water to the temperature of the metal.

c)

The final temperature is between 25 °C and 50 °C because energy is transferred from the metal to the water.

d)

The final temperature is between 25 °C and 50 °C because most of the thermal energy is lost to the air around the substances.

13.

The water in Mario’s swimming pool absorbs energy as heat during the day. Which of the following would the water in the pool be most likely to do?

a)

condense

b)

evaporate

c)

freeze

d)

melt

14.

During the summer, Chang takes a glass of milk from the refrigerator and places it on the kitchen counter. Over time, energy as heat is transferred to the milk from the air. Which change would most likely occur?

a)

The temperature of the milk will increase.

b)

The temperature of the milk will decrease.

c)

The milk will change from a liquid to a gas.

d)

The milk will change from a liquid to a solid.

15.

How is temperature related to heat?

a)

Temperature is a measure of the heat of an object.

b)

Heat causes a change in the temperature of an object.

c)

Raising the temperature causes the heat of an object to increase.

d)

Temperature and heat are two different ways to measure the same thing.

16.

Jeriah places two metal cubes in contact with each other. Energy transfers as heat flows from Cube A to Cube B. What conclusion can you draw regarding Cube A?

a)

It is larger than Cube B.

b)

It is cooler than Cube B.

c)

It is smaller than Cube B.

d)

It is warmer than Cube B.

17.
The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?
a)
radiation
b)
conduction
c)
convection
d)
insulation
18.
What is the definition of CONDUCTION?
a)
When heat is transferred from objects like rays of light or electromagnetically.
b)
a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
c)
When heat transfers from objects that are touching.
d)
When heat transfers through the heater or AC in your house.
19.

What is the definition of CONVECTION

a)

When heat transfers through waves.

b)

When heat transfers from objects that are touching.

c)

warm fluid rises; cool fluid sinks

d)

Heat traveling from the sun

20.
Warm air is __________ dense than cold air and rises creating convection currents.
a)
more
b)
less
21.

Define ecosystem diversity

a)

variety of ecosystems in a given area

b)

variation of genes within a species or population in a given area

c)

variety of life in Earth's land, freshwater, and marine ecosystems

d)

changes to an ecosystem that affect how the parts of it interact

22.

Define species diversity

a)

both the number of different species and individuals of each species in a given area

b)

variation of genes within a species or population in a given area

c)

variety of ecosystems that are in a given area

d)

changes in an ecosystem that affect of the organisms interact with one another

23.

Define ecosystem stability

a)

a healthy ecosystem with factors that stay mostly stable

b)

a healthy ecosystem with factors that fluctuate between great and terrible

c)

an unhealthy ecosystem with factors that stay mostly stable

d)

an unhealthy ecosystem with factors that fluctuate between great and terrible

24.

Define mutualism

a)

symbiotic relationship where both organisms benefit from interaction

b)

symbiotic relationship where one organism benefits and the other is harmed from interaction

c)

symbiotic relationship where one organism benefits and the other is neither harmed nor benefited

25.

Define parasitism

a)

symbiotic relationship where one organism is harmed and one is benefited

b)

symbiotic relationship where both organisms benefit from interaction

c)

symbiotic relationship where one organism benefits and one organism is harmed

26.

Define competition

a)

symbiotic relationship where both organisms benefit from interaction

b)

when two or more individuals or populations try to use the same limited resources

c)

variation of genes within an ecosystem in a given area

d)

variety of life among Earth's land, freshwater, and marine ecosystems

27.

What can biodiversity influence within an ecosystem?

a)

how well the ecosystem recovers from a disturbance

b)

how well the ecosystem grows after rain

c)

how poorly the ecosystem responds to a drought

28.

Which example represents a parasitic symbiotic relationship?

a)

flea and dog

b)

remora fish and shark

c)

alligator and plover bird

29.

Which represents an example of a limited abiotic resource?

a)

low oxygen levels in a pond that can affect fish populations

b)

fungi destroying fruit of a banana tree of which insects feed on

30.

Which of the following forms of biodiversity describes all of the different livable spaces in an ecosystem?

a)

Species

b)

Habitat

c)

Genetic

d)

None of the Above

31.

What has a higher biodiversity: a rain forest or a desert?

a)

Rain forest

b)

Desert

c)

They have a similar biodiversity

32.

All of the different organisms interacting in a pond make up

a)

a community

b)

a population

c)

the habitat

d)

an organism

33.
When there is higher biodiversity
a)
more organisms are likely to die because they can't adapt to environmental changes.
b)
there is less diversity.
c)
there is more diversity and higher sustainability of life.
d)
there is more diversity and lower sustainability of life
34.
How do Amphibians breath?
a)
Gills
b)
Blow Hole
c)
Gills and Lungs
d)
Lungs
35.
Do fish lay eggs or give birth?
a)
Give Birth
b)
Lay Eggs
36.
What is a vertabrate?
a)
An animal that has a spinal cord or backbone
b)
An animal that has lungs
c)
A human that can play Soccer
d)
An animal that has bones
37.
What is a invertabrate?
a)
An animal lacking a backbone
b)
An animal that has a spinal cord
c)
A person that has a jaw
d)
An animal or person that has lungs
38.
Body covering of a mammal?
a)
Fur
b)
Scales
c)
Fur and skin
d)
Skin and Scales
39.
Where does the energy from an ecosystem come from?
a)
Trees
b)
Sun
c)
Plants
d)
Water
40.
Which of these animals have a back bone or spinal cord?
a)
Scorpions
b)
Snakes
c)
Jelly Fish
d)
Krill
41.

How many bonds will a C atom form?

a)

1

b)

2

c)

3

d)

4

42.
Which consists of carbon atoms?
a)
graphite
b)
diamond
c)
fullerene
d)
all of these
43.
Which consists of carbon atoms?
a)
graphite
b)
diamond
c)
fullerene
d)
all of these
44.
Which has a 2D hexagonal layered structure?
a)
graphite
b)
diamond
c)
fullerene
d)
all of these
45.
What structure is shown in the diagram?
a)
Diamond
b)
Graphite
46.
Which has weak dispersion forces in between layers?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
47.
Which has every carbon atom covalently bonded to four other atoms?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
48.
Which has the formula C60?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
49.
Which is used as a cutting tool and in jewelry?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
50.
Define the term allotropes
a)
Atoms with same proton number but different number of neutrons
b)
Atoms with same proton number but different mass number
c)
Atoms in different arrangement in structure
d)
Atoms in different arrangement and different physical form
51.
Which of the following is true about C60 ?
a)
Each carbon bonded covalently to 3 other carbon atoms in a hexagonal ball like structure
b)
Each carbon bonded covelently to 4 other carbon atoms in layers
c)
a giant lattice structure
d)
pentagonal in shape
52.
What structure is shown in the diagram?
a)
Diamond
b)
Graphite
c)
fullerene
53.

Carbon is arranged in what shape to make diamond?

a)

Triangle

b)

Hexagon

c)

Octahedron

d)

Tetrahedron

54.

From which of the following substance pencil lead is formed?

a)

Charcoal

b)

Wood

c)

Lead

d)

Graphite

55.

How many bonds will a C atom form?

a)

1

b)

2

c)

3

d)

4

56.

Which of the following is an alkane?

a)

C3H6

b)

C4H8

c)

C5H12

d)

C6H12

57.

Which of these has the formula C60?

a)

graphite

b)

diamond

c)

fullerene

d)

none of these

58.

Atomic No. of Carbon,No. of Electron,No. of Proton,No of electron is

a)

12

b)

7

c)

6

d)

4

59.

Atomic No. of Carbon,No. of Electron,No. of Proton,No of electron is

a)

12

b)

7

c)

6

d)

4

60.

Benzen Formula is

a)

C6H12

b)

C6H8

c)

C8H6

d)

C6H6

61.
How do you find the area of a square?
a)
Length + Width
b)
(Side) * 4
c)
(Side) * (Side)
d)
Width * 2
62.
How do you find the area of a square?
a)
(Side) * 2
b)
(Side) + (Side)
c)
Length + Width
d)
(Side)2
63.
What is the area of a square with a side of 7?
a)
14
b)
28
c)
49
d)
64
64.
What is the side length of a square that has an area of 121?
a)
11
b)
60.5
c)
30.25
d)
14641
65.
√ 4
a)
2
b)
7
c)
16
d)
1
66.
√ 1
a)
1
b)
100
c)
10
d)
0
67.
52
a)
16
b)
25
c)
20
d)
10
68.
112
a)
132
b)
144
c)
121
d)
22
69.
√ 9
a)
8
b)
9
c)
3
d)
81
70.

 25=x2\sqrt{25}=\sqrt{x^2}  
What is the answer for x?

a)

5

b)

10

c)

25

71.

Cube of an odd number is

a)

An odd number

b)

An even number

c)

A prime number

d)

None of the above

72.

Cube of an even number is..

a)

An even number

b)

An odd number

c)

A prime number

d)

None of the above

73.

Sum of 3 and 5 is cube of

a)

1

b)

2

c)

3

d)

4

74.

Cube of 10 is

a)

100

b)

1000

c)

30

d)

3000

75.

Cuberoot of 27000 is..

a)

30

b)

27

c)

35

d)

300

76.
In the picture, the "3" is called...
a)
the index
b)
the radical sign
c)
the radicand
d)
none
77.
The number inside the radical is called...
a)
the index
b)
the radical sign
c)
the radicand
d)
none
78.
What is the cube root of 8?
a)
4
b)
2
c)
-2
d)
-4
79.
What type of number is square root of 99?
a)
rational
b)
irrational
80.
What type of number is the square root of 25?
a)
rational 
b)
irrational
81.

Which of the following is the symbol for null set?

a)

∅

b)

 ⊂\subset  

c)

 ∈\in  

d)

 ⊄\not\subset  

82.

Equivalent sets have

a)

the same number of elements

b)

the exact same elements

c)

the opposite elements

d)

nothing

83.

Equal sets have

a)

the same number of elements

b)

the exact same elements

c)

the opposite elements

d)

nothing

84.

What is intersection of A and B?

a)

A ∪ B

b)

∈

c)

∉

d)

A ∩ B

85.

What is Union of A and B?

a)

A ∩ B

b)

A′

c)

A ∪ B

d)

A ⊂ B

86.

What type of set is denoted as either { } or ∅?

a)

Superset

b)

Disjointed Set

c)

Empty (or Null) Set

d)

Subset

87.

The image represents which of the following?

a)

intersection, "and"

b)

intersection, "or"

c)

union, "and"

d)

union, "or"

88.

Which of the following represents the shaded region?

a)

A union B

b)

A intersect B

c)

A ⊂ B

d)

B ⊂ A

89.

Which of the following is a well-defined set?

a)

{a happy child}

b)

{a popular TV series}

c)

{a favorite book by my classmates}

d)

{a Mathematics book in the school library}

90.

Which of the following is not a set?

a)

The set of boys wearing the school uniform.

b)

The set of even numbers

c)

The set of students wearing red dress

d)

The set of the colors of the rainbow

91.

A set is a collection of specific, related and well-defined distinct objects.

a)

True

b)

False

92.

Roster method is describing the elements in a set.

a)

True

b)

False

93.

Which of the following is not an element of the set of colors of the rainbow?

a)

red

b)

orange

c)

indigo

d)

pink

94.

A--------- is a collection of well defined & distinct objects.

(a)  

95.

The name of set is denoted by ----------letter of English alphabet.

a)

Small

b)

Capital

96.

Collection of the names of hockey teams of Pakistan.

a)

Set

b)

Not a set

97.

A set which has limited number of elements is called------------

(a)  

98.

It is a collection of well-defined group of objects.

a)

Element

b)

Set

c)

Cardinality

d)

Universal Set

99.

What type of set is denoted as either { } or ∅?

a)

Superset

b)

Disjointed Set

c)

Empty (or Null) Set

d)

Subset

100.

The objects inside the set are called (a)  

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