physics Flashcards
1
Q
p
A
pico, 10ˆ-12
2
Q
n
A
nano, 10ˆ-9
3
Q
u symbol with longer first line
A
micro, 10ˆ-6
4
Q
m
A
milli, 10ˆ-3
5
Q
c
A
centi, 10ˆ-2
6
Q
k
A
kilo, 10ˆ3
7
Q
M
A
mega, 10ˆ6
8
Q
G
A
giga, 10ˆ9
9
Q
X component of vector in relation to main vector: Ax =
A
Acos(theta)
10
Q
Y component of vector in relation to main vector: Ay =
A
Asin(theta)
11
Q
Direction of vector from x and y components
A
Theta = inverse tan of (Ay/Ax)
12
Q
What are The Big Five kinematic equations?
A
- v = v0 + at. *missing d
- d = 1/2 (v0 + v)t *missing a
- d = v0t + (1/2)atˆ2. *missing v
- d = vt - (1/2)atˆ2. *missing v0
- vˆ2 = v0ˆ2 + 2ad. *missing t
13
Q
What approximation of g (gravitational acceleration) is used for the MCAT?
A
9.8 m/sˆ2 = 10 m/sˆ2
14
Q
sin(0)
A
0
15
Q
cos(0)
A
1
16
Q
tan(0)
A
0
17
Q
sin(30)
A
.5
18
Q
sin(45)
A
.7
19
Q
sin(60)
A
.9
20
Q
sin(90)
A
1
21
Q
cos(60)
A
.5
22
Q
cos(45)
A
.7
23
Q
cos(30)
A
.9
24
Q
tan(45)
A
1
25
gravitational force
F = ( G m1 m2 ) / rˆ2
26
static friction
0 < or = Fs < us N
27
max static friction
Fs = us N
28
kinetic friction
Fk = uk N
29
normal force
N = mg
30
torque
T = r * F sin (theta)
31
SI unit for work
J
32
work equation (distance)
W = Fdcos()
33
work equation (pressure)
W = P deltaV
34
How can you find work from a graph?
The area under the curve of a pressure (y-axis) and volume (x-axis) graph
35
power equations
P = W/t = deltaE / t
36
SI unit for power
W (watts) = J/s
37
work energy theorem equation
W(net) = delta KE = KE(final) - KE(initial)
38
kinetic energy equation
KE = 1/2 m vˆ2
39
PE when increasing height
deltaPE = mgh
40
PE when decreasing height
deltaPE = -mgh
41
total mechanical energy equation
E = PE + KE
