Newton's Laws

Question 1

Newton’s First Law

Answer 1

If there is no resultant force acting upon an object, if it is at rest it will stay at rest, if it is moving it will keep moving at a constant velocity

Question 2

Newton’s Second Law

Answer 2

F=ma The rate of change of momentum is directly proportional to the resultant force acting on it.

Question 3

Newton’s Third Law

Answer 3

If object A exerts a force on object B, then B exerts an equal but opposite force on A.

Question 4

Newtons’ Third Law Pairs

Answer 4

Object A exerts a downward force on B.

Third law pair = Object B exerts an upwards force on A

Question 5

Identifying Newton’s Third Law Pair

Answer 5

• Has the same magnitude
• Acts along the same line but, in different directions
• Acts at the same time
• Acts on different objects
• Is the same type of force
• Can be identified by changing the words around