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level: Level 1 of Circular Motion

Questions and Answers List

level questions: Level 1 of Circular Motion

QuestionAnswer
Define linear velocityRate of change of linear displacement
Express linear velocity as all its equationsv = change in distance/ change in time v = rw v = (r2π)/T
Define angular velocityRate of change of angular displacement with respect to time
What are all the equations of angular velocityw = change in angular displacement/ time w = linear speed/ radius w = 2πf w = 2π/T
Define angular displacementAngle which correlates to the distance of circumference travelled
Give the equation for angular displacementtheta = s/r theta = 2π where s is distance of cirumfrance
Define centripetal forceResultant perpendicular force toward the centre of circle required to keep a body in uniform motion
Give all the equations for centripetal forceF = mv^2/r F = mrw^2 F = mvw
How would you describe the direction of travel of centripetal forcePerpendicular to the direction of travel