Mathematically, Hooke’s law states that the applied force F equals a constant k times the displacement or change in length x, or F = kx. The value of k depends not only on the kind of elastic material under consideration but also on its dimensions and shape.
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What is Hooke’s Law experiment?
When a spring is stretched by an applied force, a restoring force is produced. Due to the restoring force, simple harmonic motion is caused in a straight line in which the acceleration and the restoring force are directly proportional to the displacement of the vibrating load from the equilibrium position.
What is Hooke’s Law used for?
Hooke’s law is often used to describe and predict deformation of materials during occurrences like plastic deformation, elastic deformation and corrosion.
How do you calculate Hooke’s law example?
What is Hooke’s Law GCSE?
Hooke’s law: The extension of a spring is directly proportional to the force applied, provided that the limit of proportionality is not exceeded.
How do springs work physics?
Hooke’s Law: The Physics of Springs Hooke’s Law states that the more you deform a spring, the more force it will take to deform it further. Using the example of a common compression spring, the more you compress the spring, the more force it will take to compress it further.
What is Hooke’s Law explain with diagram?
Hooke’s law states that the strain of the material is proportional to the applied stress within the elastic limit of that material. When the elastic materials are stretched, the atoms and molecules deform until stress is applied, and when the stress is removed, they return to their initial state.
How do you do Hooke’s Law Lab?
Does Hooke’s law apply to all materials?
Hooke’s law only holds for some materials under certain loading conditions. Steel exhibits linear-elastic behavior in most engineering applications; Hooke’s law is valid for it throughout its elastic range (i.e., for stresses below the yield strength).
Why is Hooke’s Law important in real life?
It is used in breathing (lungs), skin, spring beds, diving boards and cars suspension systems. It is used as a fundamental principle behind the manometer, spring scale and balance wheel of the clock. It is also used as the foundation for seismology, acoustics and molecular mechanics.
What is Hooke’s Law and example?
Hooke’s Law states that the force needed to compress or extend a spring is directly proportional to the distance you stretch it. As an equation, Hooke’s Law can be represented as F = kx, where F is the force we apply, k is the spring constant, and x is the extension of the material (typically in meters).
Where is Hooke’s law used in everyday life?
In addition to governing the behavior of springs, Hooke’s Law also applies in many other situations where an elastic body is deformed. These can include anything from inflating a balloon and pulling on a rubber band to measuring the amount of wind force is needed to make a tall building bend and sway.
How do you solve Hooke’s law problems?
How do you calculate how far a spring will stretch?
The work that must be done to stretch spring a distance x from its equilibrium position is W = ½kx2. Details of the calculation: (a) Given: F = mg = (4 kg)(9.8 m/s2) = 39.2 N. x = 0.025 m.
How do you solve k in Hooke’s Law?
Answer: When a spring is stretched, the force exerted is proportional to the increase in length from the equilibrium length, according to Hooke’s Law. The spring constant can be calculated using the following formula: k = -F/x, where k is the spring constant.
What is Hooke’s Law AQA?
Extension and compression Extension happens when an object increases in length, and compression happens when it decreases in length. The extension of an elastic object, such as a spring, is described by Hooke’s law: force = spring constant × extension. F = k e.
What is Hooke’s Law Year 7?
More about Hooke’s law It says that if you apply a force to a spring, then the force stretches spring. And if you don’t stretch too much, Hooke’s law says that the amount of force you apply is proportional to the stretch. So, that means that if you apply twice the force, you get twice the stretch.
What is spring constant GCSE?
The spring constant, k, is a measure of the stiffness of the spring. It is different for different springs and materials. The larger the spring constant, the stiffer the spring and the more difficult it is to stretch.
What are the 4 types of springs?
Different types of springs: compression, extension, torsion, & constant force springs.
How does a spring work for kids?
When a spring is pushed down, or compressed, it exerts a push force to try and return to its original shape. The more a spring is compressed, the greater the push force it exerts. If a spring is stretched it exerts a pull force, to try and return to its original shape.
How is Hooke’s Law measured?
- Measure the original length of the spring using a ruler.
- Attach a known weight (approximately 1N) to the spring.
- Measure the new length of the spring.
- Calculate the extension of the spring by subtracting the original length from the new length of the spring.
- Repeat steps 2-4 up to around 6N.
What object does not obey Hooke’s Law?
The material which obeys Hooke’s law is called Hookean materials. Two materials that do not obey Hooke’s law are rubber, plastic.
Which material is more elastic?
The correct answer is Steel. Steel is the most elastic material. If the object is elastic, the body regains its original shape when the pressure is removed. Steel having the steepest linear stress-strain curve among all.
Does a steel ball obey Hooke’s Law?
Objects that quickly regain their original shape after being deformed by a force, often obey Hooke’s law. Hooke’s law only holds for some materials under certain loading conditions. Steel obeys Hooke’s law throughout its elastic range.
What is stress in physics class 11?
In physics, stress is the force acting on the unit area of a material. The effect of stress on a body is named as strain. Stress can deform the body.