Problem: How does the increase mass affect acceleration and the force of the accelerating object?
Purpose: The purpose of the practical is to find how mass affects acceleration and how it affects also the force of the accelerating body. To do this we are going to do the ticker tape experiment where an accelerating body pulls a tape through a consistent 50 dot per second ticker timer. The acceleration body in this experiment will be a small trolley pulled by a string that is pulled by the downfall of different masses which will then tell how mass affects acceleration.
Hypothesis: As the Mass increase so will the force.
Variables:
Independent Variable – The amount of mass tied at the end of the string
Dependent Variable – Force (worked out by acceleration)
Controlled Variable – Same amount of air resistant (stay in the same room), same surface of what the trolley is going to accelerate on, same trolley, have the string equally stretched out every time and same tick rate of the ticker timer.
The controlled variable will be controlled to create a fair test.
Apparatus:
* Power Pack * Ticker Timer * Ticker Tape * Trolley * 1 meter string * Pulley wheel * 50 gram weights x10 * Ruler * Calculator (recommended) * Sticky tape
Method:
To be done on bench 1. Plug the power pack into a power source. 2. Attach the power pack to the ticker timer, by attaching 1 plug from the black (negative) output of the power pack to one of the power input of the ticker timer and have the other power input of the ticker timer attached to the red output (positive) of the power pack 3. Have the power pad at 2 voltage 4. Switch the power source and the power pack on 5. Adjust the ticker timer to have roughly around 50 ticks per second (estimate) 6. Switch power pad off 7. Set up the pulley wheel at the opposite end of the table from the ticker timer (preferably 1 meter apart) 8. Thread a ticker