Force and motion
How do we measure force?
We measure in Newtons
What is newton's first law?
The law of inertia
What is newton's second law
The law of motion
What is newtons 3rd law?
The law of force pairs
Who discovered force?
Sir Isaac Newton
If you kicked a ball what would happen according to newtons first law?
The ball would fall due to gravity
If you decrease the mass of an object but keep the same force what happens?
The acceleration increases
According to Newton's 3rd law what would happen if you threw a tennis ball at a wall?
The ball would bounce back.
What causes motion?
An unbalanced force
According to newton's first law, what would happen to an object that has had no force applied to it.
It would stay at rest due to inertia
How do you calculate acceleration?
A= F divided by M
If you apply 30 newtons of force on a wall how many newtons are pushed back?
30 Newtons
What is a balanced force?
An object thats not in motion
Who originally discovered this?
Galileo and Descartes were the first
What happens when you Increase an objects size but not the force applied to it?
The acceleration decreases
What does force pairs actually mean?
For every action there is an equal and opposite reaction.