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speed and velocity

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  • Give an example of speed
    car is moving at a speed of 60km/h
  • velocity is different from speed because it includes
    direction
  • What is a speed?
    is a measure of distance travelled over time
  • What is velocity?
    is a measure of displacement over time
  • What is a distance?
    refers to how much ground is covered by an object in motion
  • what is the basic formula for speed
    speed= Distance
  • a person walks 5km north and then 5km south, what is the person's displacement?
    0
  • speed is a __________ quantity
    scalar
  • what do we call the speed of an object in a specific direction?
    direction
  • if an object travel at a constant speed in a straight line its velocity is
    constant
  • if an object changes direction by maintains the same speed, its velocity
    changes
  • which affects velocity but not speed
    direction
  • if a car covers 100km in 2hrs, what is the speed?
    50km/h
  • give an example of distance
    if a car travels east for 60km and takes a turn to travel north for another 60km, the total distance travelled by car shall be 120km
  • what is the unit of the speed?
    m/sec
  • give an example of velocity
    car is moving at a speed of 60km/h in the east direction