- 1. Physics is the natural science that deals with the study of matter, energy, space, and time. It seeks to understand how the universe functions from the smallest subatomic particles to the largest galaxies. Physics encompasses various disciplines such as mechanics, thermodynamics, electromagnetism, and quantum mechanics. By observing and experimenting with physical phenomena, physicists develop theories and laws to explain the fundamental forces and principles that govern the physical world. The insights gained from the study of physics have led to groundbreaking discoveries and technological advancements that have transformed our understanding of the universe and improved our daily lives.
What is the SI unit of force?
A) Volt
B) Newton
C) Watt
D) Joule
- 2. Which scientist formulated the three laws of motion?
A) Galileo Galilei
B) Albert Einstein
C) Isaac Newton
D) Max Planck
- 3. What does Ohm's Law describe?
A) Genetics
B) Relationship between voltage, current, and resistance
C) Behavior of gases
D) Motion of planets
- 4. Which type of energy is associated with an object's motion?
A) Thermal energy
B) Potential energy
C) Kinetic energy
D) Chemical energy
- 5. What is the unit of electric charge?
A) Joule
B) Volt
C) Watt
D) Coulomb
- 6. Which law of thermodynamics states that energy cannot be created or destroyed?
A) Second Law of Thermodynamics
B) Zeroth Law of Thermodynamics
C) Third Law of Thermodynamics
D) First Law of Thermodynamics
- 7. What is the force required to accelerate a 5 kg object at 2 m/s2?
A) 10 N
B) 15 N
C) 7 N
D) 3 N
- 8. What is the SI unit of power?
A) Joule
B) Watt
C) Newton
D) Volt
- 9. Which law of motion states that for every action, there is an equal and opposite reaction?
A) Newton's Second Law
B) Newton's First Law
C) Einstein's Law
D) Newton's Third Law
- 10. What is the unit of frequency?
A) Newton
B) Coulomb
C) Watt
D) Hertz
- 11. What is the process by which a substance directly changes from a solid to a gas called?
A) Melting
B) Evaporation
C) Sublimation
D) Condensation
- 12. What is the SI unit of electric potential difference?
A) Ampere
B) Ohm
C) Coulomb
D) Volt
- 13. Which type of waves do not require a medium to travel through?
A) Electromagnetic waves
B) Sound waves
C) Seismic waves
D) Water waves
- 14. What is the law that states that the total momentum of an isolated system remains constant?
A) Ohm's Law
B) Law of Inertia
C) Second Law of Thermodynamics
D) Law of Conservation of Momentum
- 15. What happens to the velocity of an object in uniform circular motion?
A) Velocity increases
B) Magnitude of velocity remains constant, but direction changes
C) Velocity decreases
D) Magnitude and direction of velocity change
- 16. What is the process by which an atom loses an electron called?
A) Ionization
B) Decay
C) Fusion
D) Isotope
- 17. Which type of energy is stored in the bonds between atoms and molecules?
A) Nuclear energy
B) Mechanical energy
C) Chemical energy
D) Electrical energy
- 18. What is the force that resists the motion of objects sliding against each other?
A) Viscosity
B) Friction
C) Gravity
D) Tension
- 19. What is the SI unit of magnetic field strength?
A) Ohm
B) Joule
C) Tesla
D) Ampere
- 20. What is the product of an object's mass and velocity called?
A) Potential energy
B) Force
C) Momentum
D) Power
- 21. Which law of thermodynamics states that entropy of any isolated system always increases?
A) Zeroth Law of Thermodynamics
B) Second Law of Thermodynamics
C) Third Law of Thermodynamics
D) First Law of Thermodynamics
- 22. What is the transfer of energy as heat through a material called?
A) Convection
B) Transpiration
C) Conduction
D) Radiation
- 23. What term describes the ratio of an object's mass to its volume?
A) Area
B) Volume
C) Weight
D) Density
- 24. What is the unit of resistance in an electrical circuit?
A) Volt
B) Watt
C) Ohm
D) Ampere
- 25. Which scientist is credited with the theory of general relativity?
A) Isaac Newton
B) Galileo Galilei
C) Albert Einstein
D) Henry Cavendish
- 26. What is the acceleration due to gravity on the surface of Earth?
A) 5.0 m/s2
B) 9.81 m/s2
C) 10.0 m/s2
D) 7.32 m/s2
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