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10_Phys Final Part 2
By Lester Orellana
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Last updated about 6 years ago
18 questions
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Physics
Question 1
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Question 2
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Question 3
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Question 4
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Question 5
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Question 6
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Question 7
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Question 8
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Question 9
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Question 18
18.
What does the k represent in Elastic Potential Energy?
Kinetic Energy of spring
Kinetic Spring Constant
Spring Constant
What does the s represent in the Work Formula?
speed
singularity
Displacement
Distance
What is the correct equation for the conservation of energy that represents this situation? (∑E
initial
= ∑Ef
inal
)
∆E
p
= GPE
Ek + Ep = GPE
Ek = GPE + Ep
Ek + GPE = Ep
What is the correct equation for the conservation of energy that represents this situation? (∑E
initial
= ∑E
final
)
📷
∆Ep = GPE
GPE = Ek + Ep
GPE = Ep
GPE + Ek = Ek + Ep
GPE + Ek = Ep
What is Internal Energy (U) of the molecules inside an object?
Breaking the chemical bonds to change into gas state.
The average kinetic energy of all the molecules inside an object.
The addition of the Potential Energy between molecules and their random kinetic energy.
Is the energy due to random motion (vibrations and rotations) of a molecule.
What is Temperature?
The average kinetic energy of all the molecules inside an object.
The addition of the Potential Energy between molecules and their random kinetic energy.
Is the energy due to random motion (vibrations and rotations) of a molecule.
Breaking the chemical bonds to change into gas state.
Where do we have the highest random Kinetic Energy in one molecule?
Liquid
Gas
Solid
What do we need in order to change from gas to liquid state?
Remove energy from the mass
Add energy to the mass
There are 3 ways to transfer heat, which way is used to heat up the pan?
Conduction
Convection
Radiation
This picture illustrates the concept of...
Thermal Equilibrium
Thermal Energy
Radiation
Boiling Point of water
What is the definition of HEAT?
Energy to change the state of matter
Transfer of Thermal Energy
Average random kinetic energy
Energy to raise the temperature of the object
What is Latent Heat?
Transfer of Energy
Energy to raise the temperature of the object
Energy to change the state of matter
Transfer of Thermal Energy
What is the equation to increase the temperature of a gas
Q = mL
Q = mc∆T
Why does the horizontal line on 0ºC shorter than on 100ºC?
Line on 0ºC needs large amount of energy to change of state.
Line on 100ºC needs large amount of energy (related to time) to change of state.
Horizontal lines do not represent changes betwen states of matter.
What is the right equation for heat to change from liquid to solid?
a
d
b
e
What is the right equation for heat to change from liquid to gas?
b
a
d
e
What are the equations needed to get water at 100ºC from ice at -50ºC?
a + b + e
a + b
a + d
a + d + b
What are the equations needed to get gas at 100ºC from a liquid at 50ºC?
b + e
b + e + c
b + c + d