Physics 1 - Motion and Force Flashcards
1
Q
displacement, velocity, force, acceleration are all:
A
vectors
2
Q
speed= ?/?
A
distance/time
3
Q
velocity= ?/?
A
displacement/time
4
Q
acceleration= ?/?
A
velocity/time
5
Q
if velocity is constant
A
no acceleration
6
Q
calculating change in distance equation?
A
Δx= (Vo*t)+1/2at2
7
Q
calculating change in velocity equation?
A
Δv=at
8
Q
calculating final velocity equation?
A
Vf2=Vo2+2a(Δx)
9
Q
average velocity?
A
Vavg=1/2(v+vo)
10
Q
inertia
A
resistance to changes in motion
11
Q
spring equation?
A
F=-kΔxwhere k is spring constant
12
Q
how do you calculate effeciency?
A
efficency=(load x load distance)/ (effort x effort distance)
13
Q
what is the equation for centripetal force?
A
F=mv2/r
14
Q
what are the units for power?
A
Watts or Joules/sec
15
Q
what is cos(60?
A
.5
