Force and Motion Flashcards
What is Newton’s first law?
an object at rest tents to stay at rest and a n object in motion tends to stay in motion unless acted on by an outside force.
what is the most common reference point?
The Earths surface
how do you measure force?
In Newton’s
what happens when two objects are acting on the same thing with the same force?
Nothing the forces are balanced.
what must forces have to work?
Something to push
Can you see all the forces acting on things?
No some forces like gravity are invisible
what are all the forces acting on something called?
The Net Force
If there is always a force acting on everything why does something not always move?
because sometimes the forces are balanced.
what are forces when they are moving?
Unbalanced
what is newtons first law?
Objexts in motion stay in motion and aohects at rest stay at rest until acted on by an outside force
what is newtons second law?
Momentum = mass x velocity Force = mass x acceleration
what is Newtons third law?
every action has an equal and opposite reaction.
