What theory did Robert hooke provide evidence?

Answer 1

In mechanics, and physics, Hooke's law of elasticity is an approximation that states that the extension of a spring is in direct proportion with the load applied to it. Many materials obey this law as long as the load does not exceed the material's elastic limit. Materials for which Hooke's law is a useful approximation are known as linear-elastic or "Hookean" materials. Hooke's law in simple terms says thatstrain is directly proportional to stress.

Mathematically, Hooke's law states that F=-kx

where x is the displacement of the end of the spring from its equilibrium position (in SI units: "m");F is the restoring force exerted by the material (in SI units: "N" or kgms-2 or kgm/s2); andk is a constant called the rate or spring constant (in SI units: "N·m-1" or "kgs-2" or kg/s2).

When this holds, the behavior is said to be linear. If shown on a graph, the line should show a direct variation. There is a negative sign on the right hand side of the equation because the restoring force always acts in the opposite direction of the displacement (for example, when a spring is stretched to the left, it pulls back to the right).

Hooke's law is named after the 17th century British physicist Robert Hooke. He first stated this law in 1660 as a Latin anagram,[1] whose solution he published in 1678 as Ut tensio, sic vis, meaning, "As the extension, so the force".

Taken from wikipedia, but yeah, basically hookes law accounts for spring tension / elasticity

Answer 2

Robert Hooke provided evidence for the cell theory, which states that all living organisms are composed of cells, and that cells are the basic unit of structure and function in living organisms. Hooke's observation of cork cells under a microscope in 1665 was a key contribution to the development of this theory.