Circular Motion Flashcards

All 3 cards in this deck

An object moves in a circular orbit at constant speed. What is happening to its velocity?

Its velocity is continuously changing, because its direction is continuously changing.

What is the centripetal force?

The resultant force that keeps an object moving in a circular path; it acts towards the centre of the circle.

What provides the centripetal force on a ball being whirled in a horizontal circle on a string?

The tension in the string, acting towards the centre of the circle.