2. Methods


2.1
Equipment list


Equipment
Purpose
Price
Quantity
Caster board
Main focus of the experiment
About $40
1
High Speed Camera
To capture footage of the experiment

1
Accelerometer
To measure the acceleration of the caster board
$20 each
2
Data Logger
To collect data from the accelerometers into graphs
$1000
2
Measuring tape
To measure the distances
$8
1

2.2
Experiment Preparations
  1. Find an open area that is smooth but not slippery without many people.

  2. Set up the video camera.

  3. Using tape, secure the 2 accelerometers to the front and back of the caster board at a comfortable position for the rider.

  4. Connect the data loggers to the accelerometers and get the rider to hold the data loggers while he rides.

2.3

Experiment Procedures
  1. Measure out 10 metres on the ground with the measuring tape.

  2. The rider will ride the caster board at a normal speed.

  3. After travelling a distance of 10 m, the rider then come to a stop.

  4. The accelerometer will measure the acceleration of the X,Y and Z axis.

  5. The accelerometer will also measure acceleration of the moving caster board.

  6. A camera will record footage

  7. The experiment will be repeated 4 times for greater accuracy.

  8. Data from the accelerometer will be sent to a data logger for plotting of the acceleration graph, speed by time graph and angle by time graph.

2.4

Risk Assessment and Management


The rider may fall while riding the caster board
Solution: Get the rider to wear protective gear
The rider falls over and the equipment is smashed.
Solution: Get an experienced rider or add protective casing on the equipment.

Variables

No independent variable.
The dependent variable is the different types of motions
Velocity
Linear motion(motion in a straight line)
Gravitational Potential Energy
Degree of pitch(degree of rotation about the z axis)
Degree of roll(degree of rotation about the x axis)
The constants are:
(a)Ground surface
(b)Rider
(c)Casterboard

(d)Measuring Equipment










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