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Forces and Motion - Coggle Diagram

- - - - Measure the original length of the spring using a millimetre ruler.
        
        Add weights to the bottom of the weight hanger and measure the new length.
        
        For each weight added, subtract the original length away to find the extension.
        
        Keep adding more weights and calculate the extension each time. Record the force (converted from weight) and extension each time.
        
        Plot a graph of your results.
  - - - F is the force applied in newtons, N
      - K is the spring constant of the spring in newtons per metre, N/m
      - E is the extension in metres, M
- - - - Condition of tyres
      - condition of roads
  - - - tiredness
      - Alcohol and substance abuse
      - age
      - high speed
- - - - Use a motion sensor and computer to record the velocity of a trolley as it accelerates
        
        Use a newton-meter to pull the trolley a known distance with a constant force. You can repeat this and apply different forces to the trolley.
        
        Investigate the acceleration of a trolley of varying mass whilst applying a constant fore to it
        
        Keep the force te same and increase the mass of ther trolley by standing small masses on it or by stacking trolleys on top of each other.
- - - - the greater the mass, the greater the impact force
      - the greater the change in velocity, the greater the impact force
      - the shorter the time taken for the collision, the lesser the impact force
    - - Since change in momentum = mass x change in velocity, the equation can also be written as impact force = change in momentum / time
  - - - Increase the impact time during a collision
      - reduce the force on the car and the people in it
      - Designed to fold in a collision
    - - prevents a person from being flung forwards suddenly.
      - stretches slightly which increases the impact time and reduces the force.
      - spreads the impact force on the body across a larger area.
    - - increase the impact time on the driver's head and body across a larger area.