weight and circular motion - Sp2 Flashcards
1
Q
What is velocity
A
the speed and direction of an object
2
Q
What is the affect on the direction/ velocity of an object if it is travelling in a circle at a constant speed - hence what is happening to the speed?
A
the direction is constantly changing, meaning so is the velocity, hence the object is accelerating
3
Q
what is true about the force on a object moving in a circle?
A
there is always a resultant force
4
Q
where does the resultant force act in the circle?
A
towards the centre
5
Q
What is the force that keeps something moving called?
A
centripetal force
