Example calculation Q/ Suggest some limitation and improvement write at least 3 I will give one example calculation, using my example of Figure E2.20 above. Task : students done in the Lab the experiment to measure the speed of the sterling engine and to Length of pulse - 5.8 cm. TIME/DIV - 25 ms/cm. So time t- 5.8 x 25 - 145 ms - 0.145 seconds calculate the acceleration the actual value is 9.8 m/s^2 Why the students did not get the exact value of a which is 9.8 ??? The length of my aluminium blank was 101 mm - 0.101 metres. Suggest the limitation of that . And suggested improvements ( Please short answers) So acceleration- a = 2 x 0.101- 0.202 0.145 0021- 9.62 m/sec/sec The "accepted" value for g is 9.8 m/sec/sec, so this is close to the expected result. Invert Why they the students the did not got the exact values what are the limitations ?? you could pro- vide also a small figure or diagram for explanation !! BW Limit Probe End of document O 20 Figure E2.20(Example 'scope trace for g measurement) # The experiment in Brief : dropping the metal blank just in front of the sensor. It must also by just above the sensor, so that when it first reaches the sensor the speed is as close to zero as possible. The sensor is connected to about 7 Volts and to Channel A of the oscilloscope Operation of the experiment Alum. blank Sensor

Example calculation Q/ Suggest some limitation and improvement write at least 3 I will give one example calculation, using my example of Figure E2.20 above. Task : students done in the Lab the experiment to measure the speed of the sterling engine and to Length of pulse - 5.8 cm. TIME/DIV - 25 ms/cm. So time t- 5.8 x 25 - 145 ms - 0.145 seconds calculate the acceleration the actual value is 9.8 m/s^2 Why the students did not get the exact value of a which is 9.8 ??? The length of my aluminium blank was 101 mm - 0.101 metres. Suggest the limitation of that . And suggested improvements ( Please short answers) So acceleration- a = 2 x 0.101- 0.202 0.145 0021- 9.62 m/sec/sec The "accepted" value for g is 9.8 m/sec/sec, so this is close to the expected result. Invert Why they the students the did not got the exact values what are the limitations ?? you could pro- vide also a small figure or diagram for explanation !! BW Limit Probe End of document O 20 Figure E2.20(Example 'scope trace for g measurement) # The experiment in Brief : dropping the metal blank just in front of the sensor. It must also by just above the sensor, so that when it first reaches the sensor the speed is as close to zero as possible. The sensor is connected to about 7 Volts and to Channel A of the oscilloscope Operation of the experiment Alum. blank Sensor