Work, Energy, and Power (4A)
MCAT · Flashcards · Application
MCAT · FLASHCARDS
Card 1
of 4
0 got it
0 to review
Current
Got it
Still learning
Not seen
QUESTION
Find the average power if
Δ
W
=
600
J
\Delta W=600\ \text{J}
Δ
W
=
600
J
is done in
Δ
t
=
3
s
\Delta t=3\ \text{s}
Δ
t
=
3
s
.
QUESTION
Find the gravitational potential energy increase for
m
=
2
kg
m=2\ \text{kg}
m
=
2
kg
raised by
Δ
h
=
5
m
\Delta h=5\ \text{m}
Δ
h
=
5
m
with
g
=
10
m
⋅
s
−
2
g=10\ \text{m}\cdot\text{s}^{-2}
g
=
10
m
⋅
s
−
2
.
QUESTION
Identify the speed
v
v
v
of an object of mass
m
m
m
given kinetic energy
K
K
K
in terms of
K
K
K
and
m
m
m
.
Tap to flip before you grade
ANSWER
v
=
2
K
m
v = \sqrt{\frac{2K}{m}}
v
=
m
2
K
. Solving the kinetic energy formula for velocity yields this expression, relating energy directly to speed.
Swipe → got it · swipe ← still learning
Got it
Still learning
Flip Card
Previous card
Next card