forces and movement Flashcards
what is a force
a push or a pull of an object after being interacted
what are forces measured in
newtons
3 things about forces
usually act in pairs
always acts in certain direction
measured by newtons meter
what do balanced forces produce
no change in movement
what do unbalanced forces change
the speed and/or direction of moving object
5 things forces can make objects do
speed up/start move
slow down/stop moving
change direction
change shape
turn
what is a force diagram
diagram that shows the forces acting on a object
arrows represent forces. if two arrows are the same size then…
forces are balanced, either stationary or object that is moving at steady speed in one direction
arrows represent forces. if arrows are different sizes then…
they are unbalanced forces. will accelerate or decelerate
2 rules for calculating overall forces in force diagrams
subtract arrows that act in opposite directions
add arrows acting in same direction
