What is Hooke’s Law simple explanation?
Hooke’s Law is a principle of physics that states that the that the force needed to extend or compress a spring by some distance is proportional to that distance. … In addition to governing the behavior of springs, Hooke’s Law also applies in many other situations where an elastic body is deformed.
What does Hooke’s law state?
Hooke’s law, law of elasticity discovered by the English scientist Robert Hooke in 1660, which states that, for relatively small deformations of an object, the displacement or size of the deformation is directly proportional to the deforming force or load.
What is Hooke’s Law GCSE?
When an elastic object, such as a spring, is stretched, the increased length is called its extension. The extension of an elastic object is directly proportional to the force applied to it: F = k × x. F is the force in newtons (N) k is the ‘spring constant’ in newtons per metre (N/m)
What is Hooke’s law for stress and strain?
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 been applied and when the stress is removed they return to their initial state.
Why is Hooke’s law important?
Hooke’s Law, by Doodle Science, on youtube.com
Hookes law is important because it helps us understand how a stretchy object will behave when it is stretched or compacted. … The main component of car shocks are springs, and understanding how the spring will behave (using hookes law) is ideal for enhancing the technology.
Where is Hooke’s law used?
For this reason, Hooke’s law is extensively used in all branches of science and engineering, and is the foundation of many disciplines such as seismology, molecular mechanics and acoustics. It is also the fundamental principle behind the spring scale, the manometer, and the balance wheel of the mechanical clock.
How do you test Hooke’s Law?
You can investigate Hooke’s Law by measuring how much known forces stretch a spring. A convenient way to apply a precisely-known force is to let the weight of a known mass be the force used to stretch the spring.
How is Hooke’s Law verified?
Here k is the spring constant which is a quality of each spring. Therefore, in order to verify Hooke’s Law, you must verify that the force F and the distance at which the spring is stretched are proportional to each other (that just means linearly dependent on each other), and that the constant of proportionality is k.
How is Hooke’s Law calculated?
An ideal spring obeys Hooke’s law, F = -kx. Details of the calculation: k = |F/x| = (0.1 N)/ (0.035 m) = 2.85 N/m.
What does F KX mean?
F=−kx. where: x is the displacement of the spring’s end from its equilibrium position (a distance, in SI units: meters); F is the restoring force exerted by the spring on that end (in SI units: N or kg·m/s2); and. k is a constant called the rate or spring constant (in SI units: N/m or kg/s2).
What is the formula of work done?
When the force F is constant and the angle between the force and the displacement s is θ, then the work done is given by W = Fs cosθ. Work transfers energy from one place to another, or one form to another. The SI unit of work is the joule (J).
What is the limit of proportionality?
The limit of proportionality refers to the point beyond which Hooke’s law is no longer true when stretching a material. The elastic limit of a material is the furthest point it can be stretched or deformed while being able to return to its previous shape. … This works until the limit of proportionality is exceeded.
What is strain formula?
Strain occurs when force is applied to an object. Strain deals mostly with the change in length of the object. Strain = Δ L L = Change in Length Original Length . … Strain=LΔL=Original LengthChange in Length.
What are the 3 types of stress?
Stress management can be complicated and confusing because there are different types of stress — acute stress, episodic acute stress, and chronic stress — each with its own characteristics, symptoms, duration and treatment approaches.