Physics 1 Flashcards
1
Q
sin(theta)
A
opp/hyp
2
Q
cos(theta)
A
adj/hyp
3
Q
unit vector
A
special vector with magnitude of 1
4
Q
i^
A
x-axis
5
Q
j^
A
y-axis
6
Q
|A vector|
A
sqrt( (Ax)^2 + (Ay)^2 )
7
Q
A vector * B vector
A
|A vector||B vector|cos(theta)
8
Q
i^ * j^
A
0
9
Q
(A vector) * (B vector)
A
(Ax * Bx) + (Ay * By)
10
Q
______ components survive the dot product
A
parallel
11
Q
______ components survive the cross product
A
perpendicular
12
Q
Express Ax in terms of theta
A
Ax = Acos(theta)
13
Q
Express Ax in terms of phi
A
Ax = Asin(theta)
14
Q
Force
A
influence that has the potential to change an objects motion
15
Q
What is Gravity
A
non-contact force
16
Q
Normal Forces
A
always perpendicular to surfaces producing them
17
Q
Types of forces
A
Gravity, normal(support), friction, tension, applied forces
18
Q
Friction is always _____ to the surface
A
parallel
27
Q
A
28
Q
A
36
Q
A
45
Q
A
46
Q
A
47
Q
A
