Conservation of Energy and Calculating Energy Changes in Objects

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Physics, Science
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10th Grade - University
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the energy of a pendulum in a vacuum as it swings?
It is lost to the surroundings.
It is converted between gravitational potential and kinetic energy.
It remains constant as gravitational potential energy.
It remains constant as kinetic energy.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At what point does a pendulum have the greatest kinetic energy?
Halfway down its swing.
At the bottom of its swing.
At the top of its swing.
When it stops momentarily.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between gravitational potential energy and kinetic energy in a pendulum?
They remain constant throughout the swing.
They are constantly converted into each other.
They are inversely proportional.
They are always equal.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which equation represents gravitational potential energy?
v^2/2g
mg/v
mgh
1/2 mv^2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is kinetic energy calculated?
v^2/2g
mgh
1/2 mv^2
mg/v
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial gravitational potential energy of a pendulum with a mass of 1.5 kg at a height of 0.2 meters?
1.96 Joules
2.94 Joules
4.90 Joules
3.92 Joules
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the velocity of a pendulum at the bottom of its swing if its initial gravitational potential energy is 2.94 Joules?
3.00 m/s
2.50 m/s
1.98 m/s
3.50 m/s
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