Newtons 1st and 2nd Laws

Question 1

newtons 1st law

Answer 1

a resultant force is required to change the motion of an object

Question 2

newtons 2nd law

Answer 2

if a non-zero resultant force acts on an object, then it will cause the object to accelerate

the size of the resultant force is directly proportional to the acceleration in causes
(F = ma)

Question 3

non-zero

Answer 3

anything other than 0

Question 4

circular motion

Answer 4

even though the speed of the moon is constant we say that it is accelerating because its direction is always changing

Question 5

inertia

Answer 5

the tendency for the motion of an object to remain unchanged
(objects at rest will stay at rest, objects in motion will stay in motion unless acted upon by a resultant force)