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Worksheets12th Grade Exam.
Total questions: 88
Worksheet time: 52mins
In the United States, more water is used for _________________ than any other single purpose.
Making paper
Cooling down hot machinery
Doing the Laundry
Irrigating farmland
Where does most drinking water come from?
reservoirs
lakes
groundwater
oceans
Which of the following is most likely to cause conflict between two countries that share a river?
The “upstream” country drills a large number of new water wells.
The “upstream” country builds a series of new dams.
The “downstream” country uses an increasing amount of water for irrigation.
New industries dump pollutants into the river near the delta where the river empties into the ocean.
What are the effects of El Niño in California and across the southern states?
El Nino results in increased precipitation across California and the southern tier of states
El Nino results in decreased precipitation across California and the southern tier of states
El Nino results in increased precipitation across Texas and the southern tier of states
El Nino results in increased precipitation across Texas and the nothern tier of states
What heats the Earth's oceans?
People
Boats
a heater
sun
The Gulf Stream carries warm water to the North Atlantic Ocean, which contributes to
a mild climate for the British Isles.
a harsh winter in the British Isles.
a cold-water surface current that flows to the British Isles.
a warm-water surface current that flows along the coast of California.
What are some of the marine animals that were killed as a result of the Red Tide? Select all that apply.
Sea Turtles
Manatees
Whale Shark
Dolphins
Ocean dead zones are areas of the ocean that are depleted of oxygen (and therefore "dead"). How much have these dead zones gone up since 1950?
Stayed the same
Doubled
Went up 3 times as much
Went up 5 times as much
Red Tides occur naturally , but what human caused activity is making it worse?
El Nino
Oil Spills in the Gulf of Mexico
Excessive use of freshwater
Fertilizer runoff into the oceans
Disputes can occur when nations share a common water supply. Why is this?
Underlying religious and ethnic difference
It is not a problem but government exaggerate the greed of their neighbors
One group believes the other is demanding more than their fair share
Both sides waste much of the water
It takes 12 gallons of water per day to sustain a human. How many gallons does the typical American use?
5
12
158
312
What is the most important factor in causing the worldwide water crisis?
Global warming
The growth in human population
Ocean levels are rising
Inadequate Delivery Systems
The United Nations says we are in the midst of a "water crisis". What is meant by this> Select all that apply.
Water is scarce in some areas
Water is too expensive for people
There is a lack of clean water
Millions of people die from preventable diseases due to unsanitary sources
Your letter ______________ yesterday morning.
has arrived
arrived
was arrived
They were interviewing her for the job. She.......for the job.
was being interviewed
was interviewed
has been interviewed
was interviewing
has interviewed
Sita is writing for her birthday party dress because she......a new one by her mother.
has promised
will be promised
will be promising
has been promising
was being promised
One of the teachers rang the break bell to announce the student that it is break time, so the examination.....next time.
is cancelled
was cancelled
will cancelled
will be cancelled
has been cancelled
Jhon has studied Math for a test. The passive is ...
Math has been studied by Jhon for a test
Math has been study by Jhon for a test
Math has studied by Jhon for a test
Math has study by Jhon for a test
Government will build a new palace next year. The passive is ...
A new palace will built by the government
A new palace will be built by the government
A new palace will build by the government
A new palace will be build by the government
A hurricane destroyed a few houses. The passive is ...
A few houses were destroyed by a hurricane
A few houses are destroyed by a Hurricane
A few houses destroyed by a Hurricane
A few houses is destroyed by a Hurricane
The waiter is serving the customer. The passive is....
The customer is served by the waiter
The customer are served by the waiter
The customer is being served by the waiter
The customer was being served by the customer
Mary helped the boy. The passive is ...
The boy is helped by Mary
The boy was helped by Mary
The boy is being helped by Mary
The boy helps by Mary
Tom opens the door. The passive is ...
The door was opened by Tom
The door opened by Tom
The door is opened by Tom
The door is being opened by Tom
yielding to the wishes or demands of others
indulgent
elated
august
compunction
not able to be erased or removed, memorable
indelible
acrid
callous
compunction
in high spirits, jubilant; extremely pleased
elated
august
clandestine
abjure
a large destructive fire
conflagration
indelible
acrid
callous
remorse, regret
compunction
acrid
august
elated
secret, concealed; underhanded
clandestine
abjure
callous
indulgent
emotionally hardened, unfeeling
callous
acrid
indelible
conflagration
majestic, inspiring admiration and respect
august
clandestine
conflagration
indulgent
harsh in taste or odor; sharp in manner or temper
acrid
callous
compunction
indelible
to renounce, repudiate under oath; to avoid, shun
abjure
august
clandestine
elated
What is displacement current?
Give two uses each of (i) IR radiation,
(ii) Microwaves
What are Fraunhofer lines? How are
they useful in the identification of
elements present in the Sun?
What is meant by electromagnetic
induction?
Give the principle of AC generator.
What are step-up and step-down
transformers?
How will you define Q-factor?
State Fleming’s right hand rule
Define ampere.
Give the properties of dia / para /
ferromagnetic materials.
What is meant by hysteresis?
State Biot-Savart’s law.
What is Thomson effect?
State Kirchhoff’s current rule.
Distinguish between drift velocity and
mobility
The electric field lines never intersect.
Justify.
Write a short note on ‘electrostatic
shielding
Define ‘electric field’.
Haughtiness, disdain for others, arrogance, contempt for others, pretentiousness, and ostentation are qualities that are associated with ________.
a good and righteous person who walks the narrow path.
one who delights in himself, his achievements, and his wealth and supposed superiority to others.
loves unconditionally
extroverts who are good managers and inspirational.
Vapid means almost the same thing as ________.
insipid
cliche
swagger
laconic
Trite means almost the same thing as ________.
cliche
vapid
disdain
braggart
Laura's _________ grades may very well prevent her from getting into college. If she had actually tried in school, the story would be very different.
lackluster
trite
cliche
ostentations
There was a TV show on the Disney channel a long time ago called Avonlea about a little town on Prince Edward Island in Canada. They had a one-room school house, and Hetty King was the teacher. She was passing out their graded essays and said that they were "insipid drivel." She meant that their essays were...
their very best work ever.
among the worst papers she had ever read.
something worthy of publication.
were average work.
Something that everyone says, like "apple of my eye," is a ________. Others might include, "best thing since sliced bread," "ninety to nothing," and "right as rain."
cliche
lackluster
insipid
braggart
Smug is to complacent as ______ is to ______.
honest:forthright
guileless: timid
reclusive:servile
candid:dainty
Supercilious means almost the same thing as _________.
contemptuous
narcissist
vapid
banal
If you swagger around, are called pretentious, and even ostentatious, it means that you are probably___________.
a show-off who thinks he is better than everyone else
meek and humble--the salt of the earth
a very loving and kind-hearted person who would do anything for anyone
someone who is highly intelligent yet realizes that wisdom is earned.
The boy was very __________ and rude to his teacher when she asked him not to eat in class. He stamped his foot on the ground and said he could do whatever TF he wanted when he wanted. He sits now in ISS with Benjamin.
insolent
complacent
insipid
vapid
The next-door neighbors are too ________ to drive a Ford or Chevrolet; they think they have to have a BMW or Mercedes.
haughty
insolent
insipid
banal
Egotistical has the word "ego" in it, which means I, so egotistical means you are ___________.
self-centered
generous
absent-minded
philosophical
Contemptuous means almost the same thing as _______.
disdainful
bedraggled
lackluster
vapid
If you are complacent, it means that you are ________.
smug and satisfied
overly ambitious
a pyromaniac
bipolar
An arrogant person is usually someone who is ___________.
proud and overbearing
shy and quiet
skinny
hard-working
what's 4 x 1?
4
2
6
9
What is the 9th term in a geometric sequence with a common ratio of 2 and a first term of 3?
384
1,536
27
768
Find the common ratio for the geometric sequence 10, 20, 40, 80
2
10
4
1/2
Find the 5th term of the following sequence:
5, 8, 11, ...
14
21
17
71
Identify the common difference.
10, 20, 30, 40
5
10
15
20
The next two terms of the sequence 12,17,22,27 are
28 and 33
27 and 32
29 and 34
30 and 35
The amount we add by each time in an arithmetic sequence.
Common ratio
Common difference
The amount we multiply by each time in a geometric sequence.
Common ratio
Common difference
Geometric sequences involve
Addition
Subtraction
Multiplication
Division
Arithmetic sequences involve
Addition
Subtraction
Multiplication
Division
Solvelog(16+2b)=log(b2−4b)
b=8, b = -2
4
8
2
Solve log5(4x-7)=log5(x+5)
3
4
12
7
