Everyday Science

MCQs on everyday science for a screening test for CSS, MPT, PMS and FPSC.

Practice questions

Which branch of Physics deals with the study of motion and the forces causing it?
- Optics
- Thermodynamics
- Mechanics
- Acoustics
The SI unit of force is:
- Joule
- Watt
- Newton
- Pascal
Which of the following is a vector quantity?
- Speed
- Distance
- Mass
- Velocity
The SI unit of work is:
- Watt
- Joule
- Newton
- Pascal
Which law states that every action has an equal and opposite reaction?
- Newton's First Law
- Newton's Second Law
- Newton's Third Law
- Law of Gravitation
The acceleration due to gravity on Earth is approximately:
- 8.9 m/s²
- 9.8 m/s²
- 10.8 m/s²
- 11.8 m/s²
Which instrument is used to measure atmospheric pressure?
- Thermometer
- Hygrometer
- Barometer
- Lactometer
The SI unit of power is:
- Joule
- Newton
- Watt
- Volt
Which colour of visible light has the longest wavelength?
- Violet
- Blue
- Green
- Red
Which colour has the shortest wavelength?
- Red
- Orange
- Yellow
- Violet
The speed of light in vacuum is approximately:
- 3 × 10⁶ m/s
- 3 × 10⁷ m/s
- 3 × 10⁸ m/s
- 3 × 10⁹ m/s
Which mirror is commonly used as a rear-view mirror in vehicles?
- Plane mirror
- Convex mirror
- Concave mirror
- Cylindrical mirror
Heat is transferred without a material medium by:
- Conduction
- Convection
- Radiation
- Evaporation
Which of the following is the best conductor of electricity?
- Rubber
- Copper
- Glass
- Wood
The SI unit of electric current is:
- Volt
- Ohm
- Ampere
- Coulomb
Ohm's Law states that:
- V = IR
- P = VI
- F = ma
- E = mc²
The SI unit of resistance is:
- Volt
- Ohm
- Watt
- Ampere
Which particle carries a negative electric charge?
- Proton
- Neutron
- Electron
- Positron
Which subatomic particle has no electric charge?
- Electron
- Proton
- Neutron
- Positron
The atomic number of an element is equal to the number of:
- Neutrons
- Protons
- Nucleons
- Isotopes
The pH value of a neutral solution is:
- 0
- 5
- 7
- 14
Which gas is most abundant in Earth's atmosphere?
- Oxygen
- Carbon dioxide
- Nitrogen
- Hydrogen
Which gas is essential for photosynthesis?
- Oxygen
- Carbon dioxide
- Nitrogen
- Helium
The chemical symbol 'Na' stands for:
- Nitrogen
- Nickel
- Sodium
- Neon
Water is chemically represented as:
- CO₂
- H₂O
- H₂SO₄
- CH₄