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Everyday Science MCQs

179 Questions Subject Test
Subject Preparation Guide

Prepare Everyday Science with confidence

Understand the science behind daily life through questions covering health, energy, environment, inventions and natural phenomena.

Human BodyEnergyEnvironmentScientific Inventions
Important for general science portions of CSS, PMS, FPSC and provincial tests.
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81
Medium fpsc ppsc nts

Which natural process explains the formation of clouds in the atmosphere?

  • A Sublimation of ice
  • B Condensation of water vapor
  • C Evaporation of seawater only
  • D Precipitation
Permalink
Correct Answer: Option B — Condensation of water vapor
Explanation: Clouds form when water vapor in the atmosphere cools and condenses around tiny particles forming visible droplets or ice crystals that collectively appear as clouds.
Submitted by: PaperMCQs
82
Medium fpsc ppsc nts

Which everyday phenomenon explains why a metal spoon feels colder than a wooden spoon at the same room temperature?

  • A Metal has higher specific heat
  • B Metal conducts heat away from skin faster
  • C Wood absorbs more light
  • D Metal reflects more heat
Permalink
Correct Answer: Option B — Metal conducts heat away from skin faster
Explanation: Metal conducts heat away from the skin much faster than wood due to its higher thermal conductivity making it feel colder even though both objects are at the same room temperature.
Submitted by: PaperMCQs
83
Medium fpsc ppsc nts

Which modern lighting technology is significantly more energy efficient than traditional incandescent bulbs?

  • A Halogen bulbs
  • B LED bulbs
  • C Fluorescent tubes only
  • D Candle light
Permalink
Correct Answer: Option B — LED bulbs
Explanation: LED bulbs are significantly more energy efficient than traditional incandescent bulbs because they convert a much higher percentage of electrical energy into light rather than heat.
Submitted by: PaperMCQs
84
Medium fpsc ppsc nts

Which everyday observation illustrates the concept of friction reducing motion efficiency?

  • A A ball bouncing higher each time
  • B Rubbing hands together to generate heat
  • C Water boiling faster at high altitude
  • D Light bending through a prism
Permalink
Correct Answer: Option B — Rubbing hands together to generate heat
Explanation: Rubbing hands together to generate heat illustrates friction as the resistance between surfaces in contact converts kinetic energy into thermal energy producing warmth.
Submitted by: PaperMCQs
85
Medium fpsc ppsc nts

Which simple machine uses a grooved wheel and rope to lift heavy objects with reduced effort?

  • A Lever
  • B Screw
  • C Pulley
  • D Wedge
Permalink
Correct Answer: Option C — Pulley
Explanation: A pulley uses a grooved wheel and rope to change the direction of applied force making it easier to lift heavy objects such as in wells cranes and flagpoles.
Submitted by: PaperMCQs
86
Medium fpsc ppsc nts

Which simple machine is used in a bottle opener to pry open a cap?

  • A Pulley
  • B Lever
  • C Screw
  • D Wedge
Permalink
Correct Answer: Option B — Lever
Explanation: A bottle opener functions as a lever using a fixed pivot point to amplify the force applied allowing easy removal of a bottle cap with minimal effort.
Submitted by: PaperMCQs
87
Medium fpsc ppsc nts

Which common kitchen tool functions based on the principle of a wedge to separate materials?

  • A Spoon
  • B Knife
  • C Fork
  • D Whisk
Permalink
Correct Answer: Option B — Knife
Explanation: A knife functions based on the principle of a wedge using its thin angled edge to concentrate force and separate materials like food with relatively little applied effort.
Submitted by: PaperMCQs
88
Medium fpsc ppsc nts

Which type of energy transformation occurs when a battery powers an electric device?

  • A Chemical to electrical
  • B Mechanical to electrical
  • C Light to electrical
  • D Thermal to electrical
Permalink
Correct Answer: Option A — Chemical to electrical
Explanation: Batteries store chemical energy that is converted into electrical energy through electrochemical reactions occurring between the electrodes and electrolyte inside the battery.
Submitted by: PaperMCQs
89
Medium fpsc ppsc nts

Which type of energy transformation occurs in a solar panel converting sunlight into usable electricity?

  • A Mechanical to electrical
  • B Chemical to electrical
  • C Light to electrical
  • D Thermal to electrical
Permalink
Correct Answer: Option C — Light to electrical
Explanation: Solar panels use photovoltaic cells to convert light energy directly into electrical energy through the photovoltaic effect generating usable electricity from sunlight.
Submitted by: PaperMCQs
90
Medium fpsc ppsc nts

Which everyday material is a poor conductor of heat and is commonly used as cookware handles?

  • A Aluminum
  • B Copper
  • C Plastic or wood
  • D Steel
Permalink
Correct Answer: Option C — Plastic or wood
Explanation: Plastic or wood materials used as cookware handles are poor conductors of heat preventing burns by minimizing heat transfer from hot cooking surfaces to the user's hand.
Submitted by: PaperMCQs
91
Medium fpsc ppsc nts

Which vitamin acts as an antioxidant protecting cells from damage and is found in nuts and seeds?

  • A Vitamin A
  • B Vitamin E
  • C Vitamin K
  • D Vitamin D
Permalink
Correct Answer: Option B — Vitamin E
Explanation: Vitamin E acts as an antioxidant protecting cells from oxidative damage caused by free radicals and is commonly found in nuts seeds and vegetable oils.
Submitted by: PaperMCQs
92
Medium fpsc ppsc nts

Which vitamin is essential for proper blood clotting and is often associated with green leafy vegetables?

  • A Vitamin A
  • B Vitamin C
  • C Vitamin K
  • D Vitamin E
Permalink
Correct Answer: Option C — Vitamin K
Explanation: Vitamin K is essential for proper blood clotting by activating clotting factors in the liver and is commonly found in green leafy vegetables like spinach and kale.
Submitted by: PaperMCQs
93
Medium fpsc ppsc nts

Which fluid in the lymphatic system helps transport white blood cells and remove waste from tissues?

  • A Plasma
  • B Lymph
  • C Synovial fluid
  • D Cerebrospinal fluid
Permalink
Correct Answer: Option B — Lymph
Explanation: Lymph is a clear fluid in the lymphatic system that transports white blood cells and helps remove waste and excess fluid from body tissues supporting immune function.
Submitted by: PaperMCQs
94
Medium fpsc ppsc nts

Which fluid lubricates joints and reduces friction between bones during movement?

  • A Cerebrospinal fluid
  • B Synovial fluid
  • C Lymph
  • D Plasma
Permalink
Correct Answer: Option B — Synovial fluid
Explanation: Synovial fluid lubricates joints and reduces friction between articulating bones allowing smooth and pain free movement during physical activity.
Submitted by: PaperMCQs
95
Medium fpsc ppsc nts

Which gas exchange membrane structure in the lungs maximizes surface area for efficient breathing?

  • A Bronchi
  • B Alveoli
  • C Trachea
  • D Pleura
Permalink
Correct Answer: Option B — Alveoli
Explanation: Alveoli are tiny balloon like air sacs in the lungs that maximize surface area for efficient gas exchange allowing oxygen to enter and carbon dioxide to exit the blood.
Submitted by: PaperMCQs
96
Medium fpsc ppsc nts

Which soft tissue found inside bones is responsible for producing new blood cells?

  • A Cartilage
  • B Bone marrow
  • C Ligament
  • D Periosteum
Permalink
Correct Answer: Option B — Bone marrow
Explanation: Bone marrow found inside certain bones is responsible for producing new red and white blood cells as well as platelets essential for maintaining healthy blood composition.
Submitted by: PaperMCQs
97
Medium fpsc ppsc nts

Which flexible connective tissue cushions joints and is found in structures like the ear and nose?

  • A Tendon
  • B Ligament
  • C Cartilage
  • D Bone marrow
Permalink
Correct Answer: Option C — Cartilage
Explanation: Cartilage is a flexible connective tissue that cushions joints reduces friction between bones and provides structural support in areas like the ear and nose.
Submitted by: PaperMCQs
98
Medium fpsc ppsc nts

Which tiny blood vessels allow the exchange of oxygen nutrients and waste between blood and body tissues?

  • A Arteries
  • B Veins
  • C Capillaries
  • D Venules
Permalink
Correct Answer: Option C — Capillaries
Explanation: Capillaries are tiny thin walled blood vessels that allow the exchange of oxygen nutrients and waste products between the blood and surrounding body tissues at the cellular level.
Submitted by: PaperMCQs
99
Medium fpsc ppsc nts

Which structure in the heart prevents the backward flow of blood between chambers?

  • A Valves
  • B Arteries
  • C Veins
  • D Capillaries
Permalink
Correct Answer: Option A — Valves
Explanation: Heart valves prevent the backward flow of blood between chambers ensuring efficient one directional circulation throughout the cardiovascular system during each heartbeat.
Submitted by: PaperMCQs
100
Medium fpsc ppsc nts

Which muscle separates the chest cavity from the abdominal cavity and assists in breathing?

  • A Diaphragm
  • B Intercostal muscles
  • C Trapezius
  • D Bicep
Permalink
Correct Answer: Option A — Diaphragm
Explanation: The diaphragm is a dome shaped muscle that separates the chest cavity from the abdominal cavity and contracts and relaxes to facilitate inhalation and exhalation.
Submitted by: PaperMCQs
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