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Jan 5, 2020 · This is where it stops obeying Hookes law. You can write Hooke's law as an equation: F = k ∆ x Where: • F is the applied force (in newtons, N), • x is the extension (in metres, m) and • k is the spring constant (in N/m). • The extension ∆x (delta-x) is sometimes written e or ∆l. You find the extension from: • ∆x = stretched ...
Sep 30, 2014 · Presentation Transcript. Hooke’s Law. Hooke’s Law • The force exerted on an object (F) is proportional to the amount of stretch or compression (x) and the spring constant (k) • F = Newtons • x = meters • k = N/m. Hooke’s Law • Hooke’s Law mainly applies to elastic objects like springs and rubber bands • We will mainly focus ...
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Hooke's Law is a principle that describes how elastic materials behave when they are stretched or compressed. In this article, you will learn how to use Hooke's Law to calculate the force, displacement, and spring constant of a spring system. You will also see some examples and applications of Hooke's Law in physics. Khan Academy is a free online platform that offers courses in various ...
- What is nominal length?nominal length = original/initial length
- I didn't understood what that minus in formula was for?It just tells us that the exerted by the spring will be in the opposite direction to the force applied.
- The spring constant is the same for all springs or different? explain.It varies between spring to spring, depending on what it is made of, the shape of the spring, and the width of the wire.
- is spring constant is same on another planet?gravity won't change the rigidity of the spring, so I think it is the same on other planets
- I have a question on example 2a. If the nominal length is 50mm, and the compression is of 50mm then ...The nominal length is 50m. But the spring is being extended not compressed and therefore, the formula is L = Li + x= 50 mm +50 mm = 100 mm
- I don't understand what the length notations of springs refers to. For example, strain is defined as...The spring has some length when it is relaxed, right? That's the initial length.
- Why is k=E.A/L? if we put K = -F.x and E=stress/strain = (F/A)/(x/L) = F.L/(A.x) then we get -F.x = ...I think we are only interested in the absolute value. You need not include the negative sign.
- in exercise 1, when we divided F over K, why the K isn't negative as hooke's law said?Hooke's law doesn't say that the constant k is negative. The negative sign is only saying that the force is in the opposite direction of the displa...
- In exercise 1, how come the F (force) is equal to mg, not mgh? When the person steps on, there is st...I think you're confused as to the difference between gravitational force and potential energy. Close enough to the Earth's surface, we always feel...
Nov 20, 2014 · Hooke's Law. Noadswood Science, 2012. Hooke’s Law. To know Hooke’s law. Watermelon (To Face). Forces. A force acting upon an object may cause a change in shape of the object…. Some objects are able to recover their original shape when stretched (but some or not, if stretched too far)!.
Download ppt "Hooke’s Law." Hooke’s Law In the 1600s, a scientist called Robert Hooke discovered a law for elastic materials. Hooke's achievements were extraordinary - he made the first powerful microscope and wrote the first scientific best-seller, Micrographia. He even coined the word ‘Cell’.
Dec 7, 2023 · Powerpoint lecture covering the following in a modern, concise format: Specification Point 1.22 - Practical: investigate how extension varies with applied force for helical springs, metal wires and rubber bands. Specification Point 1.23 - Know that the initial linear region of a force-extension graph is associated with Hooke’s law.
KS5 Mechanics - Hookes' Law. Powerpoint suitable for both IB Diploma and AS physics mechanics lesson on Hooke's law. Includes 17 slides covering a simulation of a relevant experiment and related graph, so it is ideal to use to follow up on students performing the experiment themselves. Other slides cover the theory of Hooke's law, material ...
