Analyze Wave Amplitude and Energy
Physics · Flashcards
PHYSICS · FLASHCARDS
Card 1
of 40
0 got it
0 to review
Current
Got it
Still learning
Not seen
QUESTION
If intensity decreases from
I
I
I
to
1
16
I
\frac{1}{16}I
16
1
I
, what happens to amplitude?
QUESTION
State the formula relating energy to amplitude when the proportionality constant is
k
k
k
.
QUESTION
What happens to wave energy if amplitude increases by
10
%
10\%
10%
(from
A
A
A
to
1.10
A
1.10A
1.10
A
)?
Tap to flip before you grade
ANSWER
Energy becomes
1.21
E
1.21E
1.21
E
.
(
1.10
A
)
2
=
1.21
A
2
(1.10A)^2 = 1.21A^2
(
1.10
A
)
2
=
1.21
A
2
, so energy increases to
1.21
E
1.21E
1.21
E
.
Swipe → got it · swipe ← still learning
Got it
Still learning
Flip Card
Previous card
Next card