acceleration

• what equipment is needed?

  a toy car attached to a piece of string, the string is looped around a pulley. the other end of the string is attached to a 100g mass.
• what does the weight of the mass do?

  provide the force acting on the toy car
• what do we draw on the desk?

  chalk lines in equal intervals (e.g. every 10cm)
• what do we do first?

  hold the car at the starting point and when we are ready we let go of the car
• why does the car accelerate along the bench?

  because there's a resultant force acting through he string
• what do we record?

  the time that the car passes each distance marker
• what do we do after completing the experiment once?

  repeat the experiment several times, but each time we decrease the mass on the end of the string