Forces and Potential Energy
Middle School Physical Science · Flashcards
MIDDLE SCHOOL PHYSICAL SCIENCE · FLASHCARDS
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QUESTION
Identify the energy change when an object is lifted upward at constant speed to a higher height.
QUESTION
If an object's height decreases from
5
m
5\,\text{m}
5
m
to
2
m
2\,\text{m}
2
m
, does
U
g
U_g
U
g
increase or decrease?
QUESTION
State the formula for gravitational potential energy near Earth's surface.
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ANSWER
U
g
=
m
g
h
U_g = mgh
U
g
=
m
g
h
. Mass times gravity times height gives gravitational PE.
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