PHYSICS

Cards (22)

  • what Is weight measured in
    Newton meters
  • What are Balanced forces ?❓❓
    When two forces are the same strength but working in opposite directions
  • What are unbalanced forces ?❓❓❓
    When two forces work in opposite directions directions that are not the same strength
  • What is the definition of friction❓❓
    friction is a force caused by two things rubbing together
  • What is air resistance and water resistance ❓❓
    They are a type of friction
  • What is upthrust ⬆️❓❓ 

    Upthrust pushes things up. things float in water because of upthrust
  • What are some examples of non contact forces ❓❓

    Magnetism🧲 and gravity and static electricity ⚡️
  • What are some example of contact forces❓❓❓

    Friction and air resistance and water resistance 💧 and upthrust ⬆️
  • what is density ❓❓❓

    Density is the mass of a certain volume of something and it can be calculated with this formula -> DENSITY = MASS / VOLUME (g\cm3
  • What are some properties of light 💡
    Travels in straight lines and light travels faster than sound
  • Light travels at the speed of
    300 million m/s
  • the angle of incidence = angle of reflection
  • Definition of luminous
    Gives off its own light
  • Definition of transparent
    See through / clear image
  • Definition Of translucent
    Allows some light through but not a clear image
  • Definition of opaque
    Allows no light through and casts a shadow
  • What is refraction❓❓❓❓
    When light goes from a less dense to more dense medium at an angle : light appears to bend but it just changes direction 🧭
  • what is reflection ❓
    When light rays hit a surface and bounce off
  • what is dispersion 💡
    the splitting of white light in to a spectrum of colours
  • What are some qualities of a Low pitch sound wave
    long thick loose string
  • what are some qualities of a high pitch sound wave
    short thin tight string
  • What is the speed of sound
    330 m/s