Terminology for AS Physics: Mechanics, Materials and Waves
- Created by: James Richardson
- Created on: 12-01-13 16:26
Mechanics
Moment: Force x Perpendicular distance from the point to the line of action
Couple: Force x Perpendicular distance between the lines of actions of the forces
The Principle of Moments: For a body to be in equilibrium, the total anti-clockwise moments must equal the total anti-clockwise moments
Displacement: The direct distance between two points
Speed: Change in distance per unit time
Velocity: Change in displacement per unit time
Acceleration: Change in velocity per unit time
Newton’s 1st Law: States that a body will remain in uniform motion or stationary unless acted upon by a resultant, external force
Newton’s 2nd Law: The rate of change of momentum of a body is proportional to the applied force and occurs in the same direction therefore meaning that F=Ma
Newton’s 3rd Law: States that a force exerted upon a body will experience an equal and opposite force from the body.
Conservation of Energy: Energy cannot be created or destroyed
Energy: The capacity to do work
Work: The transfer of energy
Power: The rate of transfer of energy in relation to time
Materials
Hooke’s law: The…
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