Weight And Terminal Velocity
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Weight And Terminal Velocity

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    Weight And Terminal Velocity Weight And Terminal Velocity Presentation Transcript

    • Weight and terminal velocity
    • objectives
      • calculate an object’s weight
      • describe what terminal velocity is and how it comes about
      • draw and interpret velocity–time graphs for objects that reach terminal velocity
    • starter
      • what is the odd one out?
      • explain why.
      • kg g N lbs mg st oz
    • Gravity and weight
      • on Earth, there is 10N force on each 1kg mass
      weight (N) = mass (kg) x gravity (N/kg) what is your mass? what is your weight?
    • 2 minute quick questions
    • speed and drag
      • http://www.bbc.co.uk/learningzone/clips/why-does-a-human-have-a-different-terminal-velocity-to-a-mouse/8751.html
    • Terminal Velocity
    •  
      • exam q
    • to finish with
      • The _______________ of an object can be calculated using the equation: W = m x g. On Earth, this means the weight is 10 times the mass, as the Earth’s gravitational field _______________ is 10 N/kg. The faster a body moves through a fluid, the _______________ the frictional force on the object. A body falling through a fluid will _______________ at first because of its weight. This will increase the friction, so the resultant force will _______________ . It will continue to accelerate until it reaches a terminal velocity when the weight is balanced by the _______________ .
      • friction greater reduce strength weight accelerate