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fisics

lots of phun

QuestionAnswer
Distance unit d
Displacement unit s
Force unit N
weight unit N
(standard) mass unit kg
velocity and speed unit m/s
difference between speed and velocity velocity is vector (with direction), speed is scalar (without direction)
T OR F: is distance vector or scalar vector
T OR F: is displacement vector or scalar scalar
a dog runs 30m in 4 seconds. calculate avg speed v=d/t=30/4=7.5m/s
conversion from m/s to km/h x3.6
conversion from km/h to m/s /3.6
Newt's second law F=ma
how to find the distance something has travelled with the speed and time d=vt
how to find avg acceleration (acceleration) Aav= (Vf-V0)/t
formula for freefalling object s(displacement)=1/2x9.8x time squared
freefall definition gravity is the only force acting on an object
force of gravity on earth 9.8m/s/s
what is acceleration of freefalling object 9.8(gravity)m/s/s
gradient of a distance time graph speed
0 gradient on distance time graph at rest
curve on a distance time graph acceleration
straight line on a speed time graph constant speed
gradient on a speed time graph acceleration
moving at a constant speed on a speed time graph 0 Gradient
area under velocity time graph displacement
what does weight equal mass x gravity
net force at terminal velocity 0, meaning the velocity remains constant
how to find final velocity Vf= Vo + at
gradient on a speed time graph acceleration
moving at a constant speed on a speed time graph 0 Gradient
what does weight equal mass x gravity
net force at terminal velocity 0, meaning the velocity remains constant
alternate average speed formula d/t
distance of thrown object formula s=at+ 1/2at2
Created by: nnnnnn
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