Hooke's Law Experiment
HOOKE’S LAW EXPERIMENT
Aim: The aim of this experiment is to determine the force constant (k) of the particular spring used.
Introduction
Hooke’s Law: Hooke’s Law is a law that shows the relationship between the forces applied to a spring and change in its length (extension). The relation is best explained by the equation:
F= -k Δx
F: Is force applied to the spring this can be either the strain or stress that acts upon the spring.
k: Is the spring constant and details how hard the spring is.
Δx: Is the displacement of the spring. When the spring is compressed or stretched the x value is positive.
W=mg
W: The weight of an object is usually taken to be the force on the object due to gravity.
m: Is a fundamental property of the object; a numerical measure of its inertia; a fundamental measure of the amount of matter in the object. (mass)
g: Is the force of gravity, acting on a unit mass (1 kg) by the earth which is taken 9.8 Nkg-1 in this experiment.
Materials
Balance
Metric ruler
Slotted masses and mass hanger
Spring set
Table stand and rod.
Variables:
Independent: weight (force)
Dependent: length of the spring thus the amount of extension
Controlled: the spring used
Procedure:
1- Gather up the materials together.
2- Set up the system shown aside.
3- Measure the initial length of the spring, which is the distance between the top of the spring and the pointer, while there are no mass on the hanger.
4- Add 100 g of mass on the hanger and measure the length of the spring.
5- Repeat this process until the mass reaches to 700g.
6- Draw the raw data table with the quantities of the masses and the measurements for the length of the spring for each mass, after all data needed are collected.
7- Calculate the weight of each mass by multiplying the mass in kg and the gravitational field strength, which is g, since the force in this experiment is weight.
8- In addition, calculate the
Aim: The aim of this experiment is to determine the force constant (k) of the particular spring used.
Introduction
Hooke’s Law: Hooke’s Law is a law that shows the relationship between the forces applied to a spring and change in its length (extension). The relation is best explained by the equation:
F= -k Δx
F: Is force applied to the spring this can be either the strain or stress that acts upon the spring.
k: Is the spring constant and details how hard the spring is.
Δx: Is the displacement of the spring. When the spring is compressed or stretched the x value is positive.
W=mg
W: The weight of an object is usually taken to be the force on the object due to gravity.
m: Is a fundamental property of the object; a numerical measure of its inertia; a fundamental measure of the amount of matter in the object. (mass)
g: Is the force of gravity, acting on a unit mass (1 kg) by the earth which is taken 9.8 Nkg-1 in this experiment.
Materials
Balance
Metric ruler
Slotted masses and mass hanger
Spring set
Table stand and rod.
Variables:
Independent: weight (force)
Dependent: length of the spring thus the amount of extension
Controlled: the spring used
Procedure:
1- Gather up the materials together.
2- Set up the system shown aside.
3- Measure the initial length of the spring, which is the distance between the top of the spring and the pointer, while there are no mass on the hanger.
4- Add 100 g of mass on the hanger and measure the length of the spring.
5- Repeat this process until the mass reaches to 700g.
6- Draw the raw data table with the quantities of the masses and the measurements for the length of the spring for each mass, after all data needed are collected.
7- Calculate the weight of each mass by multiplying the mass in kg and the gravitational field strength, which is g, since the force in this experiment is weight.
8- In addition, calculate the