Science class 8 LAT Practice Paper for Pressure, Winds, Storms, and Cyclones (Dangerous Power)

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Cyclones challenge, but preparation conquers.

The Class 8 Science LAT Practice Paper for Pressure, Winds, Storms, and Cyclones is designed to transform natural forces into learning opportunities. This LAT Practice Paper for Pressure challenges students to explore the invisible yet powerful role of air pressure in shaping weather patterns, the dynamic movement of winds across regions, and the dramatic impact of storms and cyclones on human life.

Each question in LAT Practice Paper for Pressure is carefully structured to test conceptual clarity, analytical thinking, and application of scientific principles in real-world contexts. By practicing with this resource, learners not only strengthen their understanding of textbook concepts but also develop critical awareness of how these phenomena affect communities and ecosystems. The LAT Practice Paper for Pressure includes a balanced mix of multiple-choice questions, case-based scenarios, and higher-order thinking tasks that encourage students to connect theory with observation.

the LAT Practice Paper for Pressure emphasizes scientific reasoning, problem-solving, and preparedness—skills essential for both academic success and responsible citizenship. With its comprehensive coverage and engaging format, this LAT Practice Paper for Pressure ensures that students are not just memorizing facts but actively mastering the science behind nature’s most powerful forces. It is a step toward building confidence, resilience, and excellence in tackling examinations and real-life challenges alike.

LAT Practice Paper for Pressure MCQ

Question 1

What is pressure defined as?

  1. Force per unit volume
  2. Force per unit area
  3. Mass per unit area
  4. Weight per unit volume

Question 2

The SI unit of pressure is:

  1. Newton
  2. Joule
  3. Pascal
  4. Watt

Question 3

Why are water tanks placed at a height?

  1. To reduce water weight
  2. To increase water pressure at taps
  3. To prevent water contamination
  4. To save space

Question 4

Air moves from:

  1. Low pressure to high pressure
  2. High pressure to low pressure
  3. Cold region to warm region
  4. Dry region to humid region

Question 5

Which part of a cyclone has the calmest winds?

  1. Outer edge
  2. Eye
  3. Wall cloud
  4. Rain bands

Question 6

Lightning is caused by:

  1. Sudden heating of air
  2. Collision of electric charges in clouds
  3. High wind speed
  4. Low atmospheric pressure

Question 7

A dam has a broad base to:

  1. Look attractive
  2. Reduce construction cost
  3. Withstand water pressure
  4. Store more water

Question 8

Atmospheric pressure is measured in:

  1. Newtons
  2. Pascals
  3. Kilograms
  4. Metres

Question 9

During a storm, keeping windows open helps:

  1. Reduce pressure difference
  2. Let fresh air in
  3. Cool the house
  4. Prevent lightning strikes

Question 10

Which of the following does NOT affect wind formation?

  1. Pressure difference
  2. Earth’s rotation
  3. Humidity
  4. Magnetic field

Question 11

If Earth stopped rotating, what would happen to cyclones?

  1. They would form more frequently
  2. They would not spin
  3. They would become stronger
  4. They would only form over land

Question 12

Why does a balloon bulge equally in pipes of different diameters but same water height?

  1. Water weight is different
  2. Pressure depends on height, not volume
  3. Rubber elasticity varies
  4. Air pressure inside balloon changes

Question 13

A sucker sticks to a smooth surface better than a rough one because:

  1. rough surfaces have more air gaps
  2. Smooth surfaces allow better air expulsion
  3. Rough surfaces reduce force
  4. Smooth surfaces increase weight

Question 14

In Activity shown, blowing between two balloons brings them together because:

LAT Practice Paper for Pressure
  1. Air pressure increases between them
  2. Air pressure decreases between them
  3. Balloons are magnetic
  4. Blowing adds weight

Question 15

If the height of a water tank is doubled, pressure at the tap:

  1. Doubles
  2. Halves
  3. Remains same
  4. Becomes zero

Question 16

During lightning, crouching low is safer because:

  1. It reduces height and charge attraction
  2. It increases contact with ground
  3. It makes you invisible to lightning
  4. It prevents electric shock

Question 17

Why are cyclones not formed over land initially?

  1. Land heats faster
  2. Oceans provide moisture and heat
  3. Land has high pressure always
  4. Winds are weaker over land

Question 18

If clouds were good conductors of electricity, lightning would:

  1. Occur more often
  2. Not occur
  3. Be more destructive
  4. Only happen at night

Question 19

A bag with broad straps is comfortable because:

  1. It reduces pressure on shoulders
  2. It increases weight distribution
  3. It is lighter
  4. It has better design

Question 20

Why do banners have holes?

  1. To reduce wind pressure and prevent tearing
  2. To make them lighter
  3. For decoration
  4. To let air pass through

Refer to imaginary diagrams based on concepts in the chapter.

Question 21

two balloons connected by a straw, one inflated, other not.

What will happen?

  1. Both become equal in size
  2. Inflated one bursts
  3. No change
  4. Both deflate

Question 22

Diagram of a dam with broad base and narrow top.

Why is the base broad?

  1. To hold more water
  2. To withstand high water pressure at bottom
  3. For stability in earthquakes
  4. For easy construction

Question 23

Diagram showing water spurting from holes at same height in a bottle

What does this show?

  1. Water pressure is same at same depth
  2. Water pressure increases with height
  3. Water flows upward
  4. Air pressure affects flow

Question 24

Diagram of sea breeze during day

What causes wind from sea to land?

  1. Land has high pressure
  2. Sea has high pressure
  3. Land is cooler
  4. Sea is cooler

LAT Practice Paper for Pressure MCQ

Use the following data for Q25–29:

Table: Wind Speed and Pressure in Different Zones of a Cyclone

ZoneWind Speed (km/h)Pressure (mb)
Eye10950
Inner Wall200960
Outer Bands80980
Far Outer301000

Question 25

Which zone has the lowest pressure?

  1. Eye
  2. Inner Wall
  3. Outer Bands
  4. Far Outer

Question 26

Where is wind speed highest?

  1. Eye
  2. Inner Wall
  3. Outer Bands
  4. Far Outer

Question 27

Pressure is lowest where wind speed is:

  1. Lowest
  2. Highest
  3. Moderate
  4. Zero

Question 28

If pressure in Eye drops to 940 mb, wind speed in Inner Wall will likely:

  1. Increase
  2. Decrease
  3. Remain same
  4. Become zero

LAT Practice Paper for Pressure MCQ

Question 29

Far Outer zone has ________ pressure compared to Eye.

  1. Lower
  2. Higher
  3. Same
  4. Variable

Data for Q30–34:
In an experiment, water pressure at bottom of a tank was measured at different heights:

Height (m)Pressure (Pa)
549,000
1098,000
15147,000
20196,000

Question 30

What is the relationship between height and pressure?

  1. Directly proportional
  2. Inversely proportional
  3. No relation
  4. Exponential

Question 31

If height is 25 m, pressure will be approximately:

  1. 200,000 Pa
  2. 245,000 Pa
  3. 150,000 Pa
  4. 100,000 Pa

Question 32

Pressure at 10 m is twice that at:

  1. 5 m
  2. 15 m
  3. 20 m
  4. 2.5 m

Question 33

This experiment demonstrates:

  1. Air pressure decreases with height
  2. Liquid pressure depends on height
  3. Pressure is same at all depths
  4. Gravity has no effect

Question 34

If the tank diameter is doubled, pressure at 10 m will be:

  1. Same
  2. Doubled
  3. Halved
  4. Four times

Question 35

Case 1: The Uncomfortable Backpack
Riya and Sam are on a school trip, each carrying a backpack of equal weight (40 N). Riya’s bag has wide, padded straps, while Sam’s bag has thin, narrow straps. After an hour, Sam complains of shoulder pain, but Riya is comfortable.

Question: Why does Sam experience more discomfort despite carrying the same weight?

  1. Sam’s bag is heavier due to uneven packing.
  2. Narrow straps increase pressure on a smaller area of the shoulders.
  3. Wide straps reduce friction, making the bag easier to carry.
  4. Riya’s bag has better weight distribution inside.

Question 36

Case 2: The Water Tank Dilemma
A housing society has a water tank placed at 15 m height. Residents on the ground floor complain of low water pressure, while those on the top floor have good pressure. The society plans to modify the system.

Question: What change should be made to improve water pressure on the ground floor?

  1. Reduce the height of the water tank.
  2. Increase the height of the water tank.
  3. Use a larger tank at the same height.
  4. Install a pump at the ground level.

Question 37

Case 3: The Balloon Experiment
In a science class, students connect two balloons with a straw—one inflated, one not. They observe that air moves from the inflated balloon to the uninflated one until both are nearly equal in size.

Question: What scientific principle does this activity demonstrate?

  1. Air expands when heated.
  2. Air moves from high-pressure to low-pressure regions.
  3. Rubber contracts under pressure.
  4. Air has weight and volume.

Question 38

Case 4: The Dam Design
An engineer is designing a dam. She makes the base much wider than the top and uses strong concrete. She explains that this design helps the dam withstand immense pressure.

Question: Why is a broad base essential for a dam?

  1. To store more water at the top.
  2. To withstand high water pressure at greater depths.
  3. To reduce construction costs.
  4. To allow fish to pass through easily.

Question 39

Case 5: The Roof in a Storm
During a storm, Anil’s neighbor’s roof blew off, but Anil’s roof remained intact. Anil had kept his windows open, while his neighbor’s house was completely shut.

Question: Why did keeping windows open help save Anil’s roof?

  1. It allowed rainwater to enter and cool the house.
  2. It reduced pressure difference inside and outside the roof.
  3. It let strong winds pass through without resistance.
  4. It prevented lightning from striking the roof.

Question 40

Case 6: The Sea Breeze Mystery
On a summer afternoon at the beach, Priya notices the wind blowing from the sea toward the land. In the evening, the direction reverses, blowing from land to sea.

Question: What causes this change in wind direction?

  1. Rotation of the Earth.
  2. Difference in heating and cooling rates of land and water.
  3. Change in humidity levels.
  4. Movement of clouds.

Question 41

Case 7: The Lightning Incident
During a thunderstorm, Rohit sees a bright flash of lightning and hears thunder a few seconds later. He knows lightning is dangerous and crouches low in an open field, avoiding trees.

Question: Why is crouching low a safer position during lightning?

  1. It makes a person invisible to lightning.
  2. It reduces the chance of being the tallest object in the area.
  3. It increases contact with the ground, dispersing charge.
  4. It helps avoid rainwater accumulation.

Question 42

Case 8: The Cyclone Alert
The India Meteorological Department issues a cyclone warning for coastal Odisha. People are advised to move to cyclone shelters, store food and water, and avoid going near the sea.

Question: Why do cyclones lose strength after reaching land?

  1. Land surfaces are cooler than the ocean.
  2. The source of warm, moist air is cut off.
  3. Friction with land slows down winds.
  4. Both b and c.

Question 43

Case 9: The Thunderstorm Formation
In a tropical region, warm moist air rises rapidly, forms clouds, and leads to heavy rain, thunder, and lightning. The storm is localized but intense.

Question: Which two factors are essential for a thunderstorm to form?

  1. Cold air and low humidity.
  2. Moisture and strong upward winds.
  3. High pressure and clear skies.
  4. Flat terrain and still air.

Question 44

Case 10: The Banner in the Wind
A large hoarding installed during a festival has small holes punched along its edges. During strong winds, it remains intact while another solid banner nearby gets torn.

Question: Why do banners have holes?

  1. To make them lighter and cheaper.
  2. To reduce wind pressure by allowing air to pass through.
  3. To improve visibility through the banner.
  4. To decorate the banner with patterns.

Question 45

A company is designing backpacks for school students. They want to reduce shoulder strain. They test different strap widths and measure the pressure exerted on the shoulders for a bag weighing 40 N.

Strap Width (cm)Contact Area (cm²)Pressure (N/cm²)
220?
440?
660?
880?

Goal: Select the strap width that minimizes pressure.
Question: Which strap width should they choose to minimize pressure on the shoulders?
a) 2 cm
b) 4 cm
c) 6 cm
d) 8 cm

Question 46

Water Tank Placement in a Building

A builder needs to decide the height for an overhead water tank to ensure good pressure on all floors of a 4-storey building. The following data shows pressure at ground level for different tank heights.

Tank Height (m)Pressure at Ground (Pa)
549,000
1098,000
15147,000
20196,000

Goal: Choose the minimum height to achieve at least 100,000 Pa at ground level.
Question: What is the minimum tank height required?
a) 5 m
b) 10 m
c) 15 m
d) 20 m

Question 47

Wind Speed and Roof Safety

During a storm, wind speed affects pressure difference above and below a roof. If the pressure difference exceeds 500 Pa, the roof may blow off. The table shows pressure difference at different wind speeds.

Wind Speed (km/h)Pressure Difference (Pa)
60200
80350
100550
120800

Goal: Determine at what wind speed the roof becomes unsafe.
Question: At which wind speed should residents open windows to reduce pressure difference?
a) 60 km/h
b) 80 km/h
c) 100 km/h
d) 120 km/h

Question 48

Cyclone Wind Zones

A meteorologist analyses wind speeds in different zones of a cyclone. Higher wind speeds cause more damage. The table shows average wind speeds in each zone.

ZoneWind Speed (km/h)
Eye20
Inner Wall180
Outer Bands90
Far Outer40

Goal: Identify the zone where evacuation is most urgent.
Question: Which zone has the highest wind speed and poses the greatest danger?
a) Eye
b) Inner Wall
c) Outer Bands
d) Far Outer

Question 49

Liquid Pressure in Connected Vessels

Two connected vessels of different shapes have water filled to the same height. The pressure at the bottom depends on height, not shape. Data is given for pressure at the bottom.

VesselHeight of Water (cm)Pressure at Bottom (Pa)
A302940
B302940
C454410
D201960

Goal: Confirm that pressure depends only on height.
Question: Which two vessels have the same pressure at the bottom?
a) A and B
b) A and C
c) B and D
d) C and D

Question 50

Atmospheric Pressure and Sucker Strength

A student tests rubber suckers on different surfaces. The force needed to pull the sucker off depends on air pressure difference. The table shows pull-off force for different sucker diameters.

Sucker Diameter (cm)Pull-off Force (N)
440
690
8160
10250

Goal: Choose the sucker that requires the most force to remove.
Question: Which sucker diameter provides the strongest stick?
a) 4 cm
b) 6 cm
c) 8 cm
d) 10 cm

Question 51

Thunderstorm Charge Separation

In a thunderstorm, charge separation in clouds leads to lightning. The table shows charge buildup at different cloud heights.

Cloud Height (km)Positive Charge (C)Negative Charge (C)
8+30-30
10+45-45
12+60-60
14+80-80

Goal: Identify where lightning is most likely to occur.
Question: At which height is the charge separation greatest, increasing lightning risk?
a) 8 km
b) 10 km
c) 12 km
d) 14 km

Question 52

Sea Breeze Timing

The table shows temperature differences between land and sea at different times of day, which influence sea breeze formation.

Time of DayLand Temp (°C)Sea Temp (°C)Temp Difference
8 AM2422+2
12 PM3424+10
4 PM3625+11
8 PM2826+2

Goal: Determine when sea breeze is strongest.
Question: At which time is sea breeze most likely to be strongest?
a) 8 AM
b) 12 PM
c) 4 PM
d) 8 PM

Question 53

Pressure in Boat Design

Two boat designs are tested for stability based on pressure on the base. The table shows force and area for each design.

BoatTotal Weight (N)Base Area (m²)Pressure (Pa)
X30005?
Y40008?
Z35007?
W45009?

Goal: Choose the boat with the lowest pressure on the base.
Question: Which boat design exerts the least pressure on water?
a) Boat X
b) Boat Y
c) Boat Z
d) Boat W

Question 54

Cyclone Destruction Risk

A disaster management team assesses cyclone risk based on wind speed and storm surge height. The table categorizes risk levels.

Wind Speed (km/h)Storm Surge (m)Risk Level
1203Medium
1505High
1807Severe
21010Extreme

Goal: Identify the threshold for “Extreme” risk.
Question: At what wind speed and surge height does risk become “Extreme”?
a) 150 km/h, 5 m
b) 180 km/h, 7 m
c) 210 km/h, 10 m
d) 120 km/h, 3 m

Answer Key

Question123456789
Answer b  c  b  b  b  b  c  b  a 
Question101112131415161718
Answer d  b  b  b  b  a  a  b  b 
Question192021222324252627
Answer a  a  a  b  a  b  a  b  b 
Question282930313233343536
Answer a  b  a  b  a  b  a bb
Question373839404142434445
Answerbbbbbdbbd
Question464748495051525354
Answerbcbaddcbc

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