PSC 2121 Lecture Notes - Lecture 1: Heat Capacity, Food Energy

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27 Apr 2016
Physical Science PSC2121
Chapter 6: Thermal Energy and Thermodynamics
Working Problems
1) Whether one object is warmer than another object has most to do with
A) molecular kinetic energy.
B) molecular potential energy.
C) heat flow.
D) masses of internal particles.
2) The motion of molecules that most affects temperature is
A) translational motion.
B) rotational motion.
C) oscillatory motion.
D) simple harmonic motion.
3) The temperature of boiling water is
A) 100°C.
B) 212°F.
C) both
4) The temperature of melting ice is
A) 0°C.
B) 32°F.
C) both
5) When you touch a piece of ice with your finger, energy flows
A) from your finger to the ice.
B) from the ice to your finger.
C) both ways
6) When you touch a hot penny in sunlight with your finger, energy flows
A) from your finger to the penny.
B) from the penny to your finger.
C) both ways
7) The fact that a thermometer "takes its own temperature" illustrates
A) thermal equilibrium.
B) energy conservation.
C) the difference between heat and thermal energy.
D) molecules are constantly moving.
8) Which is the smallest unit of measurement for temperature?
A) one Celsius degree
B) one Kelvin
C) one Fahrenheit degree
D) all are the same
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