SP2b Newtons First Law Flashcards
1
Q
Newton’s first law of motion
A
A moving objects will continue to move at the same speed and direction unless an external force acts on it .
A stationary object will remain at rest unless an external force acts on it
2
Q
Centripetal force
A
An object moving in a circle has changing velocity even though it’s speed remains the same . The resultant force that causes the change in direction is called the centripetal force and acts towards the centre of the circle
3
Q
Types of force that can make objects move in circular paths
A
Centripetal force , gravity and friction .
