5. Forces Flashcards
Newtons 1st law
An object will not change its motion unless a force acts on it.
eg
something that isnt moveing wont move unless a force acts on it
something that is moving will stay moving unless a force acts on it
Newtons 2nd law
Force = Mass x acceleration
Newtons 3rd law
For every action there is an opposite reaction
How to calculate accelration
change in velocity/ time
eg 0-60 kph in 3 seconds
(60-0) /3 = 20kph faster per second
how to calculator velocity
V = distance/time
balanced forces means the object will ___
constant speed if its moving
not move if its not moving
non balanced forces means the object will
Do one or more:
Accelerate
decelerate
change direction
Forwards force
Thrust
Downwards force
Gravity
Backwards force
Friction/air resistance/ drag
Upwards force
Lift
