Independent Assessment Physics Lab (SL): Cantilever Flexion

Cherno Okafor

Mr. Ebrahimi

SPH4U7

October 21st, 2012

Introduction

Purpose: The purpose of this Physics Lab is to investigate what factors determine the amount of flexion of the cantilever. Hence, the objective is to establish a relationship between the length of a cantilever, which may give some insight into the physics of cantilevers.

Hypothesis: If one increases the length of a cantilever, one would expect there to be an increase in deflection/flexion of the cantilever. Similarly, if one increases the mass of the load, one would expect there to be an increase in the deflexion/flexion of the cantilever. In addition, I predict that proportionality will also occur*…show more content…*

* Dependent Variable: The deflection/flexion of the cantilever in metres. This will be measured indirectly by measuring the initial height of the bottom of the cantilever with no mass added (which is equal to the height of the table) and the new height of the bottom of the cantilever after each trial, which will be measured with mass added. Hence, the difference between these heights is equal to the deflection/flexion of the cantilever. The material and other physical properties of the cantilever will be controlled by using the same yardstick as a cantilever for each trial.

Data Collection and Processing

My experiment is divided into two parts; experiment A (involving the relationship between flexion and the mass of the load) and experiment B (involving the relationship between the flexion and the length of the cantilever).

Below are two tables in which I have recorded the data which I obtained during the experiment. The first table reflects the Relationship between the deflection/flexion of the cantilever and the mass of the load and the second table reflects the relationship between the flexion of the cantilever and the length of the cantilever.

(i) Relationship between the deflection/flexion of the cantilever and the load mass (5 trials)

Table #1-Experiment A Factor/Variable | Trial 1 | Trial 2 | Trial 3 | Trial 4 | Trial 5 | Trial 6 | Trial 7 |

Cherno Okafor

Mr. Ebrahimi

SPH4U7

October 21st, 2012

Introduction

Purpose: The purpose of this Physics Lab is to investigate what factors determine the amount of flexion of the cantilever. Hence, the objective is to establish a relationship between the length of a cantilever, which may give some insight into the physics of cantilevers.

Hypothesis: If one increases the length of a cantilever, one would expect there to be an increase in deflection/flexion of the cantilever. Similarly, if one increases the mass of the load, one would expect there to be an increase in the deflexion/flexion of the cantilever. In addition, I predict that proportionality will also occur

* Dependent Variable: The deflection/flexion of the cantilever in metres. This will be measured indirectly by measuring the initial height of the bottom of the cantilever with no mass added (which is equal to the height of the table) and the new height of the bottom of the cantilever after each trial, which will be measured with mass added. Hence, the difference between these heights is equal to the deflection/flexion of the cantilever. The material and other physical properties of the cantilever will be controlled by using the same yardstick as a cantilever for each trial.

Data Collection and Processing

My experiment is divided into two parts; experiment A (involving the relationship between flexion and the mass of the load) and experiment B (involving the relationship between the flexion and the length of the cantilever).

Below are two tables in which I have recorded the data which I obtained during the experiment. The first table reflects the Relationship between the deflection/flexion of the cantilever and the mass of the load and the second table reflects the relationship between the flexion of the cantilever and the length of the cantilever.

(i) Relationship between the deflection/flexion of the cantilever and the load mass (5 trials)

Table #1-Experiment A Factor/Variable | Trial 1 | Trial 2 | Trial 3 | Trial 4 | Trial 5 | Trial 6 | Trial 7 |

Related

- Satisfactory Essays
## Cross Bridge Construction

- 292 Words
- 2 Pages

My dependent variable how much weight each bridge can endure before the bridge breaks apart. When you add weight tension is created. (tension is a pulling force that occurs at the bottom of a bridge) when tension is applied the connecting points (glue, pieces that snap together, etc.) will unconnect so everything will fall apart and the bridge collapse to the ground.

- 292 Words
- 2 Pages

Satisfactory Essays - Decent Essays
## A Decsription of Torque

- 1221 Words
- 5 Pages

Mass of the Fulcrum Clamp: _________________(grams) Mass of Clamp with V-wire: ________________(grams) Mass of Weight Hanger: __________________(grams) Balancing point (center of mass) of meter stick, x0 = ____________(cm) Values Case 1 m1 = 100 g m2 = 200 g x1 = 15 cm x2 =_________ Moment (lever) arms r1 = ___________ r2 = ___________ Results *(see note above) τcc = ___________ τcw = ___________ % Diff. __________ Case 2 m1 = 100 g m2 = 200 g m3 = 50 g

- 1221 Words
- 5 Pages

Decent Essays - Better Essays
## Trebuchet Research Paper

- 607 Words
- 3 Pages

Science Buddies. (2015, December 12). Effect of Trebuchet Arm Length or Counterweight Mass on Projectile Distance. Retrieved March 24, 2016, from http://www.sciencebuddies.org/science-fair-projects/project_ideas/ApMech_p013.shtml

- 607 Words
- 3 Pages

Better Essays - Good Essays
## AM 317 Experiment 1 Essay

- 1992 Words
- 8 Pages

Deflections of a beam are important to be able predict the amount of deflection for a given loading situation. This experiment addresses determining the yield point for a material to fail, so the stress in the material does not have to reach to that point. This is where understanding beam deflection becomes a useful tool. This experiment is using beam deflection theory to evaluate and compare observed deflection per load values to theoretical values. Beam deflection experiment done by four parts. Part 1 -Simple Supported Bean, part

- 1992 Words
- 8 Pages

Good Essays - Decent Essays
## Beam Project

- 1345 Words
- 6 Pages

The goal of the beam project is to design and construct a beam that can hold a given amount of weight without breaking. The beam is required to hold a concentrated load of 375 lbf on the X-axis and 150 lbf on the Y-axis. The maximum allowable weight of the beam is 250 grams. The maximum allowable deflection for the beam is 0.230 in. and 0.200 in. for the X and Y-axis respectively. The beam is required to be 24 in. in length, and it will be tested on a simply supported configuration spanning 21 in. All calculations are to be done under the assumption that the density of basswood is 28 lbm/ft3 and the modulus of elasticity for basswood is 1.46x106 lbm/in2. Given the constraints of a spending cost of $10.50, a maximum beam weight of 250 grams,

- 1345 Words
- 6 Pages

Decent Essays - Decent Essays
## Essay about Enb110 project report

- 5842 Words
- 24 Pages

Each separate truss (of the dimensions 920x5x50mm) consisted of a Pratt truss with nine diagonal members on each side of the centre. The model was tested in sufficiently isolated condition by tutors. It successfully passed the initial weight test, and satisfactorily resisted horizontal forces. Once fitted onto the testing rig, loads were applied and increased incrementally. Slight deformation was observed before failing at 12.5 kg, at which force a collection of members failed in succession, concluding the test.

- 5842 Words
- 24 Pages

Decent Essays - Good Essays
## Force and Motion

- 1496 Words
- 6 Pages

8. Conduct experiment a second time with catapult pulled back to 90 degrees. (Half way back)

- 1496 Words
- 6 Pages

Good Essays - Better Essays
## Water Fly Lab Report

- 2331 Words
- 10 Pages

be of interest to calculate the theoretical force using a derivation of equations and comparing them

- 2331 Words
- 10 Pages

Better Essays - Decent Essays
## Science Fair Project Report

- 307 Words
- 2 Pages

I want to do this experiment because about two years ago, when I was in the seventh grade, I did a science fair experiment where I tested how changing the variables in a mass-spring-damper system affected system response. In that experiment, I changed the amount of mass,

- 307 Words
- 2 Pages

Decent Essays - Decent Essays
## Trebuchet Essay

- 530 Words
- 3 Pages

Have you ever wondered how a Trebuchet works, well if you read this you will know. To test a Trebuchet you have to know if the length of an arm on a Trebuchet affects the distance the projectile travels. This is an important question if you like building, figuring out how things work, or physics. Also, understanding how a Trebuchet works can help people learn how to make more advanced machines or weapons. Yes the length of an arm on a trebuchet affects the distance it travels. A longer arm will launch the farthest. To build a Trebuchet you will need to know about the physics, kinetic and potential energy, and force and momentum.

- 530 Words
- 3 Pages

Decent Essays - Decent Essays
## Do We Construct Our Catapult?

- 694 Words
- 3 Pages

This force is used when finding the spring constant for the elastic potential energy. The larger the force required to pull the spoon down, the larger the spring potential is. We find this relationship between the force and the spring constant from the spring constant equation, which is the force divided by the change in the distance stretched/compressed. This force is a little different each time a catapult is pulled down, as the elastic will stretch and become easier to pull down overtime. This means the data at the beginning of testing will differ from the results at the end of

- 694 Words
- 3 Pages

Decent Essays - Decent Essays
## Lab Report Physics Paper

- 522 Words
- 3 Pages

The demonstrated in this experiment is when there is lightweight applied to a cart and there is more weight applied to the pulley then a cart will move faster because the net force is pulling down. When there is more weight applied to a cart, and less weight applied to the pulley, a cart will still move, but not fast like part A. There is a relationship between force, mass and acceleration and those three are the demonstrated of this experiment.

- 522 Words
- 3 Pages

Decent Essays - Better Essays
## Bending of Beam Lab Report Essay

- 1003 Words
- 5 Pages

Following tables and graphs show the result of the experiment. The tables will demonstrate the experimental and theoretical deflection for each case. The graphs will show the relationship between the load applied and deflection, in addition to compare the experimental deflection and theoretical deflection.

- 1003 Words
- 5 Pages

Better Essays - Good Essays
In this lab, deflection and strain are measured in an attempt to confirm Hooke’s law and the Euler-Bernoulli bending beam theory. In addition, the measured data allows us to calculate the modulus of elasticity (Young’s Modulus) or E of the cantilever beam. Through the course of the experiment our observations revealed that the addition of weights deformed the beam in response to the applied stress. This deformation can be modeled using the Euler-Bernoulli beam bending theory. Our experimentation and calculations revealed that our data did indeed prove the theories mentioned in this lab. Furthermore, our values for the modulus of elasticity or E came within the range of established values found online.

- 1155 Words
- 5 Pages

Good Essays - Decent Essays
## Unit 7 Hooke's Law Lab

- 2109 Words
- 9 Pages

This lab will test the relationship between the spring constant, k, from Hooke’s Law and the change in applied force resulting in displacement. Using two different methods, part one and two of the lab will determine the spring constant, k. In part one we will hang different masses from the spring so that we can alter the amount of force acting on it. After applying these weights, one can measure the displacement caused by this action. Hooke’s equation will yield a straight line graph of F (weight) versus x (displacement). The slope of the graph will yield the spring constant, k. In part two we will be using the oscillation of the mass on the spring as an example of SMH. By graphing the oscillation, we can

- 2109 Words
- 9 Pages

Decent Essays