Speed

• What is the speed of an object?

  A measure of how fast it is travelling
• What type of quantity is speed?

  A scalar quantity
• What factors affect the speed at which a person can walk run or cycle?

  The persons age , their fitness levels , the terrain they are doing this on , and the distance they are doing this over
• What is the average walking speed?

  1.5 m/s
• What is the average running speed?

  3 m/s
• What is the average cycling speed?

  6 m/s
• What is the average city driving speed?

  12 m/s
• What is the average motorway driving speed?

  30 m/s
• What is the average high speed train speed?

  75 mph
• What is the average commercial aircraft speed?

  250 m/s
• What is the average speed of sound in air?

  330 m/s
• True or false : most things travel at a constant speed?

  False
• What is the equation for distance travelled?

  distance travelled = speed x time