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7.2 What is the difference between Kelvin scale and Celsius scale? 5.1 Define Pascal's Law. 6.1 Define Young's Modulus of Elasticity of a material. 2.1 Define angular velocity. 4.1 Explain the difference between centroid and centre of gravity. 5.1 Define the unit pascal. 5.2 Define Pascal's law. 6.1 What is the difference between the Kelvin scale and the Celsius scale? 2.1. define angular displacement The angle through which a point, line, or body is rotated about a specific axis in a given direction. Θ =2 π x revolutions (n) = 2 πn radians 5.1. what is the function of a hydraulic accumulator? 5.2. name TWO types of hydraulic accumulators. 6.1. define Hooke’s law The amount of change in dimensions (extension or reduction) is directly proportional to the magnitude of the load. 7.1. Define boyles gas law and draw a graph to illustrate your definition 2.1. define angular acceleration A body rotates at an angular velocity varying from ω1 to ω2 in a time interval t reaches an angular acceleration α α= (ω2- ω1)/t = change in angular velocity/ time taken 5.1. state three characteristic of a liquid 6.1. define Hookes law 7.1. define boyles gas law and represent this definition graphically. 2.1 Define angular acceleration. 3.1 Define conservation of energy. 7.1 Define Charles' gas law and draw a neat sketch to illustrate this definition. 2. define the coefficient of expansion of a body The expansion per centigrade rise in temperature of 1m length is called linear expansion coeffiecient 4.2 Define the term centre of gravity. 5.1 Define the unit pascal. 4.1 Define the term bending moment.

Answer 1

7.2)

Celsius temperature scale also called centigrade temperature scale, is the scale based on 0 for the freezing point of water and 100 for the boiling point of water.

Kelvin temperature scale is the base unit of thermodynamic temperature measurement in the International System (SI) of measurement. It is defined as 1/ 273.16 of the triple point (equilibrium among the solid, liquid, and gaseous phases) of pure water.

Relation between Celsius  and kelvin:

K = C + 273.15