SPEED AND VELOCITY WS - Mrs. K's Science Classroom



Motion (Speed and Velocity) Worksheet

Complete all questions and show all calculations for each

|Write the formula used to calculate average speed and state what each part represents. |

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|Explain the difference between speed and velocity. |

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|Determine the average speed of each of the following: |

|A/ A racehorse that wins the 3200m Melbourne Cup in a time of 3 min |B/ A kangaroo fleeing a dingo which bounds a distance of 2.5 km in 3|

|20 sec (answer in m/s) |min (answer in m/s) |

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|C/ A dolphin which keeps up with a boat for a distance of 2km for a |D/ Keirin Perkins as he completes the 1500m in a time of 15 min |

|time of 3 min (answer km/h) |(answer in km/h) |

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|How long would it take you to walk from Melbourne to Sydney, a distance of 900 km, if you walked at |

|an average speed of: |

|a/ 5km/h without stopping |b/ 5km/h for 10 hrs each day |c/ 1.5 m/s without stopping |

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|A swimmer swims the 100m breaststroke event in 1m 8s. The event is in a 50m pool. She finishes the event at the same end at which she |

|started. If she begins the event swimming due north and takes 35 sec to swim the first 50m, calculate her: |

|a. Average speed for the whole |b. Average velocity for the |c. Average velocity for the whole event |

|event |first 50 m | |

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|6. In a 60km/h speed zone the police set up a digitector, placing 2 cables across the road, 5m apart. The time |

|taken for cars to cross both cables was recorded. |

|One car took 0.2 seconds to cross the cables. Was it speeding? If so by how much? |

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