Masses and Springs Lab PDF

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Completed Masses and Springs Lab...

Description

Masses and Springs

Objective: To gather experimental data, display conservation of energy, and calculate for Hooke’s constant, k.

Required Materials:     

Linear Spring Meter stick with cm and mm measurements Weights of 1kg, 500 g, 200 g, 100 g, 50 g, 20 g Pencil Recording log

Experimental Procedures: 1. Gather all required lab materials. 2. By using a combination of the weights on the spring, measure from 0 cm the displacement the spring completes with 500g of mass. Record this displacement in a data table. 3. Next, repeat step 2 using measurements of 1kg, 1.25 kg, 1.5 kg, and 2 kg. Record these values in your data table. 4. Once finished, put away all required lab materials.

Data Table: Mass (g)

Displacement (cm)

500

10.75

1000 1250 1500 2000

23 32.5 42 58.5

Results: Now, we have our data. The displacement we recorded is at the point of equilibrium. Therefore, we can use the calculation W=kx. We must take our mass and multiply to equate it to cm. Multiply each value by 9.8m/s x 10.

Weight (dynes) 490000

Displacement (cm) 10.75

980000 1225000 1470000 1960000

23 32.5 42 58.5

K = y(dynes)/x(cm) K = (490000 + 980000 + 1225000 + 1470000 + 1960000)/(10.75 + 23 + 32.5 + 42 + 58.5) = 36731 dynes/cm While this is an acceptable value for the data, it can’t go without mentioning that a variety of human error inspired these results. While we tried to maintain each and every measurement as consistently as we could, there is no way that we were completely successful each time. In addition, using instruments of such varying abilities to tell value is also something that can be brought up to question. All in all, this lab was a success for me and my partner....