b) techniques and procedures

aii) techniques and procedures used to investigate the motion and collisions of objects

to determine the motion of an object

  • two light gates are connected to a timer, one at the top and one at the bottom of the ramp

  • a trolley with a card travels down the ramp

    • the card passes the first light beam

    • the timer starts

    • the card passes the second light beam

    • the timer stops

  • calculate the velocity and the acceleration of the troller

    • v = s / t

    • a = Δv / t