2019 Year 12 IB Extended Essays

THE PHYSICS OF THE ROLLER COASTER

- Attach the track to the track holders that are sticked to the placed rods. (refer to

picture below)

rods

track

Track holder

loop

Second base

Base platform

- When reaching height beyond 40 cm, use a second platform with 4 x 30 cm rods as support and stick a 40 cm rod on the second platform.

Part 2: the experiment

- set up the height of release to 30cm, 40cm, 50cm, 60cm, and 70cm. - Set up the loop with the starting radius of 2.5 cm. Measure the radius by taking both vertical and horizontal diameters and average them. Use diameters for measurements. - Drop the ball and see if it is able to complete the loop. If it does increase the radius of the loop by 0.5 cm (increase the average diameter by 1cm). - Keep increasing the radius until the ball could not complete the loop.

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IB Diploma