practicals

• • aim of practical is to investigate effect of varying force on object of constant mass
• method:

  1. place one textbook under ramp
  2. meaure height of ramp using metre ruler
  3. let trolley go at top of ramp
  4. measure distance travelled using metre ruler
  5. measure time taken using stopwatch
  6. calculate acceleration usung a = (v-u)/t
  7. repeat with another textbook under ramp
  8. release trolley from same position each time
• • to change experiment to measure mass, use same method
  • use 100g of force for every run
  • increase number of masses to trolley each time, adding to 100g