• Use the scales to determine the weight in newtons (N) and the mass in kilograms (kg) of the student when the lift is stationary

• Press the button the send the lift upwards

• Note the maximum reading on the scales as the lift accelerates upwards

• Note the reading as the lift is travelling at constant speed

• Note the minimum reading as the lift decelerates to a halt

• Repeat the experiment for the downwards journey of the lift

• Use the results to calculate the acceleration of the lift at the three stages of each journey

Copyright Physics Support Materials 2000