*units of speed

• The standard unit


  is metres per second (m/s) bc scientists want to avoid confusion as some countries use miles/h and others use kilometres/h .

  the word per means "in each"
• Calculating Speed

  • speed = distance/time
  • time = distance/speed
  • distance = speed x time

  
• In your answer, always:

  1. Show your steps of getting to the answer
  2. include the correct units with the answer
• The highest possible speed

  since the 1930's, Albert Einstein adn other scientists have thought of the highest possible speed, the speed of light (1 000 000 000 km/h)