measurements & numbers
scientific notation for 2,340,000,000
2.34 x109
How do you find speed?
s= d/t
Unit for velocity
m/s
What are the units for accel, mass, and force?
M/s2, Kg, (N)ewton
Equation for force
F=ma
what is symbol for micro-
µ
What is slope equal too?
Speed
What is gravity?
-9.8m/s2
How do you find weight and what is g?
w=mg
g=9.8m/s2
What is friction?
a force that opposes motion between two surfaces.
What are the components to the design thinking process?
Empathize, Define, Ideate, prototype, test
Horizontal line for a v-t graph
Constant velocity, + direction
Shortest path with direction?
Displacement
Draw a free body diagram for a water bottle sitting on a table
Fg going down, N going up
What is Hookes Law
F=-kx
What are the SI units of physics?
Meter(m), seconds(s), kilogram(kg)
On a d-t graph what is acceleration shown like?
A curved line
If Vo, A, V, and X are given which equation do you use?
V2=Vo2+2a(Δx)
Net force and A for block <- 10N 4kg ->30N
net force=20N, A= 5m/s2
How do you find terminal velocity?
Fair=Fg
Where was the modern number system invented?
India
Slope for (2,4) (6,8) on a V-t graph
1m/s2
A car accelerates from rest at 5.91 m/s/s. How much time will it take for the car to reach a velocity of 27.9 m/s?
4.72s
Draw a free body diagram for an airplane flying to the right in the air.
Fg going down, Fair to the left, and Fengine going to the right.
What is "Rho" and units for it?
Greek letter for density and Kg/m3