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Test Unit 3 and 1,2,6 Dec2019 MEDUCA
By Lester Orellana
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Last updated over 6 years ago
18 questions
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Question 11
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Answer correctly and show calculations.
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Question 12
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Question 13
13.
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Question 14
14.
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Question 15
15.
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Question 16
16.
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Question 17
17.
If m = 6.8 ± 0.3 kg and v = 1.9 ± 0.1 ms
-1
. Find the absolute uncertainty with correct significant figures for m•v
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Question 18
18.
The block is sliding down with acceleration and friction. Sketch the forces on the block and the F.B.D. on the right.
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Its a constant that indicates the amount of heat to melt a solid per unit mass
L
f
L
v
c
solid
c
liquid
It is the average of the random kinetic energy of the molecules in a substance.
Thermal Energy
Heat
Temperature
Internal Energy
Is the total of the potential energy between molecules and the random kinetic energy of the particles.
Thermal Energy
Heat
Temperature
Internal Energy
Is the transfer of thermal energy to a substance.
Latent Heat
Heat
Temperature
Internal Energy
Latent heat means
Heat that is hidden while changing the termperature
amount of energy to change the temperature
amount of energy needed to either add or remove to change phase
Heat that is hidden while increasing the random kinetic energy.
In order to convert Celsius to Kelvins we ...
substract 273
add 273
If mass and temperature are fixed in a gas, when we increase the pressure ...
Volume increases
Volume decreases
Volume remains the same
If mass and pressure are fixed in a gas, when we decrease the temperature ...
Volume increases
Volume decreases
Volume remains the same
Q = mc∆T
It's an equation used to find the amount of latent heat
It's an equation used to find the amount of heat just in liquids
It's an equation used to find the amount of heat the change in phase
It's an equation used to find the amount of heat to change the average random kinetic energy
The Boltzmann constant is ...
the ratio between mass and molar mass
the ratio between particles and Avogadro Constant
The ration between Unviersal Gas Constant and molar mass
The ration between Unviersal Gas Constant and Avogadro Constant