Branches of Physics Quiz

Branches of Physics

• Mechanics: Study of motion, force, energy, and matter
• Thermodynamics: Study of heat, temperature, and energy transfer
• Electromagnetism: Study of electricity, magnetism, and electromagnetic waves
• Optics: Study of light, vision, and optical instruments
• Quantum Mechanics: Study of behavior of matter and energy at atomic and subatomic level
• Relativity: Study of space and time, including special and general relativity

Key Concepts

• Matter: Anything that has mass and occupies space
• Energy: Ability to do work, comes in various forms (kinetic, potential, thermal, etc.)
• Force: Push or pull that causes an object to change its motion
• Newton's Laws:
  1. Inertia: Object at rest stays at rest, object in motion stays in motion
  2. Force and acceleration: Force applied to an object is equal to its mass times its acceleration
  3. Action and reaction: Every action has an equal and opposite reaction

Measurement and Units

• SI Units:
  • Meter (m) for length
  • Kilogram (kg) for mass
  • Second (s) for time
• Physical Quantities:
  • Speed: distance per unit time
  • Velocity: speed in a specific direction
  • Acceleration: rate of change of velocity
  • Momentum: product of mass and velocity

Important Physicists

• Isaac Newton: Developed laws of motion and universal gravitation
• Albert Einstein: Developed theory of relativity and famous equation E=mc²
• Marie Curie: Discovered radioactive elements and pioneered radioactivity research

Branches of Physics

• Study of physics divided into multiple branches including mechanics, thermodynamics, electromagnetism, optics, quantum mechanics, and relativity
• Each branch focuses on a specific area of study

Key Concepts

• Matter: has mass and occupies space
• Energy: ability to do work, comes in various forms (kinetic, potential, thermal, etc.)
• Force: push or pull that causes an object to change its motion
• Newton's Laws:

  Newton's First Law

  • Inertia: object at rest stays at rest, object in motion stays in motion

  Newton's Second Law

  • Force and acceleration: force applied to an object is equal to its mass times its acceleration

  Newton's Third Law

  • Action and reaction: every action has an equal and opposite reaction

Measurement and Units

• SI Units:
  • Meter (m) for length
  • Kilogram (kg) for mass
  • Second (s) for time
• Physical Quantities:
  • Speed: distance per unit time
  • Velocity: speed in a specific direction
  • Acceleration: rate of change of velocity
  • Momentum: product of mass and velocity

Famous Physicists

• Isaac Newton: developed laws of motion and universal gravitation
• Albert Einstein: developed theory of relativity and famous equation E=mc²
• Marie Curie: discovered radioactive elements and pioneered radioactivity research