Embedded Files
How can the motion of a body be described quantitatively and qualitatively?
How can the motion of a body be described quantitatively and qualitatively?
Qualitatively:
The object moves in a circle at constant speed, meaning the magnitude of velocity is constant.
However, the direction of velocity is continuously changing — this change in direction means the object is accelerating even though its speed is constant.
The acceleration is called centripetal acceleration, and it always points towards the center of the circle.
A centripetal force (not a separate force but a net force, e.g., tension, gravity, friction) keeps the object in circular motion by constantly pulling it inward.
Quantitatively:
We can describe UCM using several key equations: Centripetal acceleration, Centripetal force, Period and frequency relationships
Understandings
Understandings
that bodies moving along a circular trajectory at a constant speed experience an acceleration that is directed radially towards the centre of the circle-known as centripetal acceleration
that circular motion is caused by a centripetal force acting perpendicular to the velocity
that a centripetal force causes the body to change direction even if its magnitude of velocity may remain constant
that the motion along a circular trajectory can be described in terms of the angular velocity ⍵ which is related to the linear speed v
Google Sites
Report abuse