Section 1- Further Mechanics Flashcards
1
Q
Angular speed equation
A
ω= θ/t
ω= v/r
2
Q
What is the angular speed equation for an object turning through 2π
A
ω = 2πf
3
Q
Equation for centripetal acceleration
A
a = ω^2 r
4
Q
Equation for centripetal force
A
F = mω^2 r
5
Q
What is the condition for SHM
A
Acceleration is directly proportional to its displacement from the midpoint and is directed towards the midpoint
6
Q
SHM equations
A
a = -ω^2 x
a = ω^2 A
x = Acos(ωt)
7
Q
SHM pendulum equation
A
T = 2π squrt (l/g)
8
Q
What is a free vibration
A
No transfer of energy to or from the surroundings
9
Q
What happens when a system is resonating
A
The driving force approaches the resonant frequency, the system gains more and more energy and then therefore vibrates with a rapidly increasing amplitude
