Newtons 1st law
What is Newtons 1st law
An object in motion will stay in motion unless acted upon by an unbalanced force
What is newtons 2nd law
Force equals mass times acceleration.
What is new tons 3rd law
Every action has an equal and opposite reaction
Name the force that keeps man on earth
Gravity
5N ---- 5N -----
10N right
what is a force
A push or pull
Why does it matter if something has a large amount of mass and you want to move it.
It requires a large amount of energy
what is another name for newtons 3rd law
Inertia or law of action and reactions
Name the force the usually goes against gravity
Fnorm
5N------ -5n ---------
0N
What is are unbalanced forces
forces that are not equal in strength and are opposite in direction that cause a change.
If F=10 and the mass= 1 what does the acceleration have to be
10
in this scenario name the action and reaction
A. Ball pushes bat to the left
B. bat pushes ball to the right
B Action
A. Reaction
What force is used when pushing something on the ground and prevents it from going infinitely
Ffric
3N up 3N down
then 5N right 5N left
0N
what are balanced forces
forces that are equal in strength opposite in direction and don't cause a change.
The acceleration of an object relies on ___ acting on the object
Net Force
If a tennis ball hits the ground at a diagonal angle towards the right how will the ball go after you hit it down
it will jump up at an equal angle as when you threw it down.
How do forces always come in
in pairs
1200N up then 800N down
400N up
Does this apply to Newtons 1st law
Kicking 2 balls of different mass the one with greater mass will move less than the one with lesser mass if kicked with the same amount of force
NO!!!
If a soccer ball weighs 2 pounds and a bowling ball weighs 20 pounds how much acceleration would the average acceleration if the net force on each is 5N and show work
F= MA
F/M and MA/M formula for acceleration
F/M = A formula for acceleration
5/2 =2.5 m/s square. Soccer ball
5/20 =0.25 m/s squared Bowling ball
Is this an example of newtons 3rd law
Rocket turns on then rocket's energy pushes it up
yes
If you tie two cars one car is exerting 50 newtons of force and another 50 newtons of force in the opposite direction, how much force in Newtons would be exerted
50N down 50N up then 20N left
20N left