7

• What does acceleration 


  Change in speed over time
• What is the method used in the experiment?


  • Place all mass onto the trolley with interrupt card
  • Remove 100g from the trolley and add to the other side of the string
  • Trolley travels a fixed distance between two light gates
  • Measure the time taken to travel this distance with a timer
• What tool is used to measure the fixed distance in the experiment?


  Meter ruler
• What is the purpose of the light gates in the experiment?


  To measure the time taken by the trolley
• If you remove 100g from the trolley, what happens to the force acting on the trolley?


  The force decreases
• How does the removal of mass from the trolley affect its acceleration?

  Acceleration increases with less mass
• What equipment is needed


  • Trolley
  • Ruler
  • Sticky tape
  • Chalk
  • Pulley with clamp
  • Mass holders
  • 50g masses
  • 100g masses
  • String
• What is the safety needed


  • Pulley must be safely attached to the bench
  • Masses should be securely attached to the trolley
  • Make sure no one it standing where the mass holder or masses could land on their feet
  • Make sure trolley doesn't fall off the table