PHYSICS LAB REPORT
VERIFYING HOOKE'S LAW
AIM:
The aim of performing this experiment is to find out if the extension produced by a spring is directly proportional to the tension force applied to it and thus verifying Hooke's law.
THEORY:
Hooke's law is the relationship between the force exerted on the mass and its position x. Consider a object with mass m, that is on a frictionless surface and is attached to a spring with spring constant k. The force the spring exerts on the mass depends on how much the spring is stretched or compressed, and so this force is a function of the mass's position.
The idea behind Hooke's Law is that any object that is initially displaced slightly from a stable equilibrium point will oscillate about its equilibrium position. It will, in general, experience a restoring force that depends on the displacement x from equilibrium.
The extension or the strain will keep increasing as you increase the weight added as long as the spring doesn't remain stretched permanently. A point is reached where the spring can't stretch any more when more tension force is applied to it and snaps. This is defined as the 'elastic limit' of the spring.
The force constant 'k' of a spring is the force needed to cause unit extension, i.e. 5cm. If a force 'F' produces extension 'e' then,
k = F
e
HYPOTHESIS:
As seen the Hooke's law states that the extension of a spring is directly proportional to the tension supplied to it. Therefore I predict that as more weights will be added the extension will increase almost proportionately. Therefore I also predict that the graph will be as shown below:
The x axis shows the extension produced by the spring, whereas the y axis shows us the stretching force applied to the spring.
VARIABLES:
Constant:
> The surroundings that mean temperature, wind force, etc.
VERIFYING HOOKE'S LAW
AIM:
The aim of performing this experiment is to find out if the extension produced by a spring is directly proportional to the tension force applied to it and thus verifying Hooke's law.
THEORY:
Hooke's law is the relationship between the force exerted on the mass and its position x. Consider a object with mass m, that is on a frictionless surface and is attached to a spring with spring constant k. The force the spring exerts on the mass depends on how much the spring is stretched or compressed, and so this force is a function of the mass's position.
The idea behind Hooke's Law is that any object that is initially displaced slightly from a stable equilibrium point will oscillate about its equilibrium position. It will, in general, experience a restoring force that depends on the displacement x from equilibrium.
The extension or the strain will keep increasing as you increase the weight added as long as the spring doesn't remain stretched permanently. A point is reached where the spring can't stretch any more when more tension force is applied to it and snaps. This is defined as the 'elastic limit' of the spring.
The force constant 'k' of a spring is the force needed to cause unit extension, i.e. 5cm. If a force 'F' produces extension 'e' then,
k = F
e
HYPOTHESIS:
As seen the Hooke's law states that the extension of a spring is directly proportional to the tension supplied to it. Therefore I predict that as more weights will be added the extension will increase almost proportionately. Therefore I also predict that the graph will be as shown below:
The x axis shows the extension produced by the spring, whereas the y axis shows us the stretching force applied to the spring.
VARIABLES:
Constant:
> The surroundings that mean temperature, wind force, etc.
