Mechanics

Josephine Conway
Flashcards by Josephine Conway, updated more than 1 year ago
Josephine Conway
Created by Josephine Conway almost 5 years ago
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Mechanics definitions

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Question Answer
Scalar Magnitude without direction e.g. length, area, volume, distance, speed, mass, density, pressure, temperature, energy, work, power, electrical potential, charge & time.
Vector A quantity that has both magnitude and direction e.g. displacement, velocity, acceleration, momentum, forces (weight), fields, a.c voltage & current when calculating fields
Displacement Net distance moved in a particular direction
Instantaneous Speed Speed measured between two points at a very small time apart
Average Speed distance covered / time taken - distance traveled per unit time
Velocity Speed in a given direction
Acceleration Gradient of a velocity time graph = change in velocity per unit time taken
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