What forces act on falling objects

gravity and air resistance

what is inertia

resistance to a change in motion

how is mass different from weight

Mass refers to the amount of matter in an object while weight is a force due to gravity

how does weight change

weight changes if the force of gravity changes. Less weight if theirs less gravity

what is a newton equal to

kgxm/s2

What is Newtons 1st law of motion

An object remains at rest unless an unbalanced forces act upon it

What is Newtons 2nd law of motion

the acceleration of an object depends of the mass of the object and the amount of force applied

What is Newtons 3rd law of motion

Whenever one object exerts force on another, the second object exerts and equal and opposite force

What is momentum

mass in motion, how difficult it is to stop a moving object, quality of motion an object has

What does the law of conservation of momentumm state

the total momentum of a closed system remains constant. meaning the total momentum before an interaction equal the total after