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trillingen
Trillingen en golven
Examenstof VWO * HAVO^
Trillingen
*
Frequentie
f = 1 / T
f
[s
-1
] of [Hz]
=
T
[s]
=
*
Uitgerekte veer
kracht
F
veer
= C u
*
Uitgerekte veer
energie
E
veer
= 1/2 C u
2
F
veer
[N]
=
U
veer
[J]
=
C
[N m
-1
]
=
C
[N
m
-1
]
=
u
[m]
=
u
[m]
=
*
Trillingstijd
massa-veersysteem
T = 2
π
√ (m / C)
*
Trillingstijd
mathematische slinger
T = 2
π
√ (l / g)
T
[s]
=
T
[s]
=
m
[kg]
=
l
[m]
=
C
[N m
-1
]
=
g
[m
s
-2
]
=
*
Harmonische trilling
uitwijking
u (t) = A sin (2 π f t)
*
Harmonische trilling
maximale snelheid
v
max
= 2
π
f A
u (t)
[m]
=
op t = 0 s dan φ = 0
v
max
[m
s
-1
]
=
A
[m]
=
f
[s
-
1
]
=
f
[s
-1
]
=
A
[m]
=
t
[s
]
=
*
Trillingsenergie
E
tr
= 1/2 C A
2
*
Trillingsenergie
E
tr
= 1/2 m v
2
max
E
tr
[J]
=
E
tr
[J]
=
C
[N m
-1
]
=
m
[k]
=
A
[m]
=
v
max
[m
s
-1
]
=
*
Fase
φ (t) = t / T
φ (t)
[-]
=
t
[s]
=
T
[s
-1
]
=
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