MCAT Physics: Thermodynamics

Description

Practice quiz for MCAT physics portion, focus on thermodynamics.
Jessica Gjonaj
Quiz by Jessica Gjonaj, updated more than 1 year ago More Less
Mike Nervo
Created by Mike Nervo over 8 years ago
Jessica Gjonaj
Copied by Jessica Gjonaj almost 3 years ago
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Resource summary

Question 1

Question
Thermodynamics is the study of the flow and transformation of energy in the universe.
Answer
  • True
  • False

Question 2

Question
In the zeroth law how much net flow of heat flows between the objects?
Answer
  • 1
  • 0
  • 2

Question 3

Question
What is a major characteristic of absolute zero and what is its measurement?
Answer
  • no thermal energy 0 K
  • no thermal energy 0 J
  • no thermal energy 0 D

Question 4

Question
celsius to fahrenheit is Tf=(9/5)Tc+31
Answer
  • True
  • False

Question 5

Question
The change of temperature in solids results in a change in their ________.
Answer
  • width
  • height
  • length

Question 6

Question
The equation for a change in length of a solid due to a ∆T is... ∆L=(α)(L)(∆T) α = coeff. of linear expansion (specific to material) L is the original length
Answer
  • True
  • False

Question 7

Question
The change of temperature in liquids results in a change in their ________.
Answer
  • weight
  • length
  • volume

Question 8

Question
The equation for a change in volume of a liquid due to a ∆T is... ∆V=(β)(V)(∆ T) where β = 3α β = coefficient of volume expansion (in K-¹ or °C-¹) V is original volume
Answer
  • True
  • False

Question 9

Question
First Law of Thermodynamics (internal energy)
Answer
  • ∆ U= ±Q + ±X
  • ∆ U= ±Q + ±W
  • ∆ U= ±Q + ±Z

Question 10

Question
Work done by the system is...
Answer
  • positive
  • negative
  • neutral

Question 11

Question
Work done on the system is...
Answer
  • positive
  • negative
  • neutral

Question 12

Question
What are the three ways by which heat can be transfer E? Check all that apply.
Answer
  • conduction
  • convection
  • radiation

Question 13

Question
The direct transfer of energy from molecule to molecule through molecular collisions is called _______.
Answer
  • condution
  • convection
  • radiation

Question 14

Question
When temperature increases, density decreases.
Answer
  • True
  • False

Question 15

Question
How many joules (E) does it take to raise 1kg of water by 1 degree?
Answer
  • 4,194 J/ kg °C
  • 4,394 J/ kg °C
  • 4,184 J/ kg °C
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