Phys 2.4 - Circular Motion 0.0 / 5 ? PhysicsForces and MotionGCSEAQA Created by: DanCreated on: 04-05-13 12:56 When an object moves in a circle what is happening? The object is constantly changing velocity 1 of 10 What is the name given to an object accelerating in a circular motion? Centripetal acceleration 2 of 10 How do objects accelerate? Only when a resultant force is acting on them 3 of 10 What is the name given to this force that acts on objects during centripetal acceleration. Centripetal force 4 of 10 In what direction does this force act? Always acts towards the centre of the circle 5 of 10 What will happen if the centripetal force stops acting? The object will continue to move in a straight line 6 of 10 What 3 things increase the centripetal force? The mass of the object, the speed of the object, the radius of the circle decreases 7 of 10 A student is whirling a conker around on a piece of string, in a circle. What force provides the centripetal force? Tension in the string 8 of 10 What will happen to the conker if the string breaks? The conker will fly off in a straight line at a tangent to the circle 9 of 10 Is centripetal force a force on its own? No it is always provided by another force EG tension 10 of 10
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