IB Physics SL
Lab Report – Relationship between Angle and Acceleration
Aim
To get the gravitational acceleration by a slope board and a ticker tape.
Hypothesis
When the angle of the board gets 90, then the acceleration reaches at 9.81m/s2 which is the speed of the gravitational acceleration.
Apparatus
A slope board, ticker tape, a car, and a tractor.
Method
- Put the board on a table or something to put over.
- Measure the angle(starts from 1 degree, 11 degree, 22 degree, 33 degree, and 44 degree)
- For each angle, place the ticker tape on the top of the board, and let the car go from a ticker tape as long as possible.
- After gathering data by a ticker tape record, measure the length of every 6 dots (which is 0.1secs consider that ticker tape works at 60Hz).
- Make a Time-Length table to get a Time-Velocity table (for every degree).
- Make a graph for each angle from Time-Velocity table (for every degree).
- From the Time-Velocity graphs, get a gradient (Acceleration) of each graph and make a final table for an Angle-Acceleration graph.
- At the final graph, the acceleration at 90 degree will be presented.