Lab Activity . Aim To find the acceleration and velocity of an object moving on an inclined track. Materials required Glass marbles, book, digital clock, long plastic tubes and steel plate. table values
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Solution
Aim : To find the acceleration and velocity of an object moving on an inclined track.
Materials required : Glass marbles, book, digital clock, long plastic tubes and steel plate.
Procedure :
1) Take a long plastic U type flat electrical wire cassing channel of length nearly 200cm. Use these tube parts as tracks.
2) Mark the readings in cm, along the track.
3) Place the one end of the track on the book and the other end on the floor.
4) Keep a steel plate on the floor at the bottom of the track.
5) Consider the reading at the bottom of the track as zero.
6) Take a marble having enough size to travel in the track frrely.
7) Now release marble freely from a certain distance say 40 cm.
8) Start the digital clock when the marble is released.
9) It moves down on the track and strikes the steel plate.
10) Stop the digital clock when sound is produced.
11) Repeat the same experiment for the same distance 2 to 3 times and note the valuse of time in the table.
12) Repeat the same experiment for various distances.
13) Draw s - t graph for above values.
14) Do the above experiment by various slopes of the track and find acceleration in each case.
Conclusions : 1) As the slope increases, acceleration increases.
2) When iron block is used, we obtain the same conclusion as above. (The numerical values are less than the numerical values when marble is used)