Step 3: Place one weight on the wooden block. Move the block uniformly along the wooden ruler and measure the pulling force using a dynamometer. Record the force and the distance the block moved.
Step 4: Measure the distance 's' through which the block was moved. Record this measurement in the table.
Step 5: Repeat the previous step, moving the block uniformly over the same distance with the same force. Use a stopwatch to measure the time 't' of the block's movement. Record this in the table (trial 1).
Step 6: Place two weights on the block, then three weights. Repeat the measurements for pulling force, distance, and time for each case. Record these in the table (trials 2 and 3).
Step 7: Using the formulas $$A = F \cdot s$$ and $$N = A / t$$, calculate the work done and the power for all three cases. Record the results in the table.
Step 8: Answer the questions regarding the relationship between pulling force and the number of weights, work done and pulling force, and power and pulling force.