Essay about Lab 6

Submitted By David-Case
Words: 1123
Pages: 5
Open Document
GS104
Lab Report
Experiment # 6
Hooke’s Law David Case:
February 12, 2015

Experiment #6 Hooke’s Law

Objectives:
To investigate Hooke’s law and to determine the spring constant for two springs and a rubber band.

Materials:
Rubber Band

Computer and Spreadsheet
Scale-Spring-500-g
Tape Measure
Srpings, 2 sizes-Pk

Experiment 1:

This experiment will use a spring scale in place of calibrated weights to increase the force on a spring. However, this method will add an additional step to the experiment. To cancel out the effect of the internal spring of the spring scale, you need to measure the elongation of the spring for each force increment by recording the position of the top and bottom of the spring. If you only record the bottom position of the spring, you would measure the combined spring constant of the spring and the internal spring of the spring scale.

Procedure: Ensure that you do not stretch a spring beyond its capacity to recover by first performing a stretch test to estimate the spring’s full-elongation capacity:
● Hold the spring at both ends and pull it apart with only moderate force, not with so much force that you permanently distort it.
● Estimate how many centimeters (cm) you were able to stretch the spring and mentally divide that stretch by the number of experimental increments you wish to test.
● For each test step, you will add only sufficient weight or force to increase the stretch by one increment. For example, if you can stretch a spring 10 cm and need 10 measurements, each experimental increment should be 1 cm and you should add enough force at each step to stretch the spring by only 1 cm.

1. Suspend the spring scale from a wall hook, doorknob, or something similar with a flat surface behind it to which you can tape a meter tape.
2. Perform a stretch test as described above on the first spring and then suspend it from the scale as shown at right.
3. Position and affix the meter tape along the side of the spring. The location of the beginning of the tape is not important as you will record the top and bottom measurement for each force addition.
4. Hold the bottom hook of the spring and gently pull straight down with sufficient force to stretch the spring 1/10 of its elongation capacity. Now measure and record the position of the top and the bottom of the spring. The difference will be the exact elongation of the spring. Also, record the force required to create that elongation.
Continue to stretch the spring and record data in steps, which add sufficient force to achieve an additional 1/10 elongation. You will record 10 sets of force and elongation data. The elongations recorded at each step are already cumulative elongations.
5. Repeat the above steps with a second spring of a different stiffness.
6. Finally repeat the above procedures using a small rubber band. Then continue adding weight until the rubber band breaks or is on the verge of breaking or nearly stops stretching with added force

Data Table 1 :

Force (N)
Top position of spring, cm
Bottom position of spring, cm
Elongation, cm Bottom reading – top reading
Data Point 1
0
1
4
3
Data Point 2
0.65
1.6
5
3.6
Data Point 3
0.9
2.1
6
3.8
Data Point 4
1.25
2.6
7
4.4
Data Point 5
1.6
3
8
5
Data Point 6
1.8
3.4
9
5.6
Data Point 7
2.0
3.8
10
6.1
Data Point 8
2.5
4.2
11
6.8
Data Point 9
2.6
4.5
12
7.6
Data Point 10
3.0
5
13
8.1

Data Table 2:

Force (N)
Accumulated (cm) Elongation (stretch)
Accumulated (m) Elongation (stretch)
Elastic PE (Joules)
Data Point 1
.5
8.8
.088
.00199
Data Point 2
1.5
9.6
.096
.00680
Data Point 3
2.5
11.6
.115
.01655
Data Point 4
3.5
13.5
.136
.03195
Data Point 5
4.5
18
.18
.06510
Data Point 6
5.5
20
.3
.011
Data Point 7
6.5
23.5
.23
.01720
Data Point 8
7.5
26
.26
.2530
Data Point 9
8.5
27.9
.29
.3333
Data Point 10
9.5
30.5
.31
.4279

1. For each data row in each of your tables calculate: Elastic PE = 1/ 2kx^2
2. For each spring and
Show More

Related Documents: Essay about Lab 6

Chemistry Lab 6 Lab

Lab Six explored the solubility of a set of metal ionic compounds in water. This lab uses centrifugation, extraction , and observation to isolate each metal ionic compound and determine what metal is the product of the reactions. In this experiment both calculations and observations are used to determine the metal product of each reaction. During the experiment the precise measurement of 2 mL of unknown solution was mixed with and extraxted from the Sodium based solutions NaL, Na2s, and NaOH.From…

Words 381 - Pages 2

Lab 6 Essay

Heat, Temperature and Calorimetry Lab 8 Name: Class: Date: 02/08/2015 Purpose: 1. Verify that when 2 objects of different temperatures are placed in contact with each other, the heat transfer principle applies. 2. Learn how to read the temperature on a thermometer. 3. Discuss and learn the factors that affect the amount of heat that is transferred. 4. Determine the specific heat of an unknown metal. Procedures: Apparatus: Thermometer 100ml graduated cylinder Styrofoam cup (with cardboard cover)…

Words 756 - Pages 4

Lab 6 Exploring Density Lab Answers

. CHM130 Lab 6 Exploring Density Name: Nolan Strommer A. Data Tables Place your completed Data Tables here: Part IIIa (3 points) Volume of water in graduated cylinder (mL) 10 mL Mass of rubber stopper (g) 11.35 g Volume of water and rubber stopper (mL) 17 mL Part IIIb (6 points) Volume of water in graduated cylinder (mL) 8cm Mass of iron nail (g) 3.51g Volume of water and iron nail (mL) 8.3 mL Part IV (20 points) Type of Aluminum Foil Mass (g) Length (cm) Width (cm) Volume…

Words 1472 - Pages 6

Nt1310 Unit 6 Lab

From the annealing part of lab, I was expose to heating up brass at three different temperatures and measuring the harness value of each sample under different time intervals. The result show reduction trend in hardness value of material as annealing time increase. This makes sense…

Words 918 - Pages 4

Essay about Lab 6

What are the two main differences between mitosis and meiosis? a. Mitosis one division occurs and in Meiosis two divisions occur b. In mitosis synapsis of homologous chromosomes does not occur and Meiosis synapsis of homologous chromosomes occurs. 6. a. Explain the difference between mitosis and cytokinesis. During mitosis division of the nucleus into two identical nuclei occurs. Cytokinesis is followed by mitosis, resulting in division of cytoplasm and resulting in the formation of two daughter…

Words 996 - Pages 4

Essay on Lab 6 questions

Lab #6 Assessment Questions & Answers 1. Describe how creating zones is helpful in the design of a DMZ and security solution for the LAN-to-WAN Domain? DMZ is a physical or logical subnetwork that contains and exposes an organizations external-facing services to a larger and untrusted network, usually the internet. The purpose of a DMZ is to add an additional layer of security to N dmz, rather than any other network. 2. How many zones does your design incorporate? Do you think an additional…

Words 784 - Pages 4

Essay on Instro Lab 6

Figure 2- Representing the dilution scheme of unknown power drink sample Regression Method 6. From linear regression output obtained from the UV spectrophotometer, The line of equation, Abs = 0.04856 C – 0.02541 And correlation coefficient = 0.99615 7. Caffeine concentration in the diluted unknown sample for each replicate using the regression…

Words 2110 - Pages 9

Nt1310 Unit 6 Lab

Yes, the Paris attack was tragic. I suspect these attacks will continue in the future, until humanity learns to share resources and respects each others' cultural differences. I do have projects similar to Janson et al, 2007 Cell to propose to you. Spindle dynamics in meiosis I & II have not been well characterized (see attached movie). During meiosis, two haploid (1N) cells mate/fuse and become one large diploid (2N) cell. This diploid zygote duplicates its DNA (4N) and forms one meiosis I spindle…

Words 411 - Pages 2

Physics Lab Report 6 Essay

Physics Lab Report#6 “Analyzing Stress and Strain Using Hooke’s Law ” Name: Fei Huo Date performed: November 5st, 2014 Period 5 Teacher: Mr. Glasel Purpose: The Purpose of this lab was to examine the relationship between force and the elongation on two different springs and a rubber band. Introduction: My classmates and I were using two different springs and a rubber band to see the relationship between the force and the elongation from the mass of some weights. We had to measure…

Words 758 - Pages 4

Respirometer 6 Lab Report

After this was done, we then proceeded to remove the non-germinating (dormant) corn seeds and the beads from the tube and we placed them on a paper towel. For experiment 6 which is the respirometer 6 we refilled the graduated tube to 25 ml with water and added enough bead to make sure that it equals the volume of the germinating corn after this experiment was performed we removed the beads and placed them ,on a paper towel after this…

Words 362 - Pages 2