Test
Ch. 17 - 19
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Preguntas del test (28)
1When you walk barefoot on red-hot wooden coals it is best if
- Ano pieces of metal are among the coals.
- Byou impress your friends by carrying away bits of wood in between your toes.
- Cyou walk slowly to demonstrate your courage.
- Dall of the above.
- Enone of the above.
2To melt ice, add
- Aenergy.
- Btime.
- Ctemperature.
- Dforce.
3When a solid is changed to a liquid, the solid
- Aabsorbs energy.
- Breleases energy.
- Cboth of these
- Dneither of these
4When liquids change to a solids, they
- Arelease energy.
- Babsorb energy.
- Cboth of these
- Dneither of these
5 When a gas is changed to a liquid, the gas
- Areleases energy.
- Babsorbs energy.
- Cboth of these
- Dneither of these
6The Phases of Matter are in what order?
- ASolids - Liquid - Plasma - Gaseous
- BGaseous - Solids - Liquid - Plasma
- CGaseous - Plasma - Liquid - Solids
- DSolids - Plasma - Gaseous - Liquid
- ESolids - Liquid - Gaseous - Plasma
7When water freezes, the surrounding air is
- Acooled.
- Bwarmed.
- Cboth of these
- Dneither of these
8The lowest temperature possible in nature is
- A-273 degrees C.
- B4k
- C0 degrees C.
- Dnone of the above
9Water freezes at atmospheric pressure and a temperature of
- A32 degrees Fahrenheit.
- B0 degrees Celsius.
- Cabout 273 kelvin.
- Dall of the above
- Enone of the above
10The change in internal energy of adding 100 joules to a system that does 60 joules of work is
- A0 J.
- B40 J.
- C100 J.
- D60 J.
- Enone of the above
11When you rapidly stir raw eggs with an eggbeater, the temperature of the eggs
- Aremain unchanged.
- Bincreases.
- Cdecreases.
- Dnone of the above
12When you compress air with a tire pump, the air temperature in the tire
- Adecreases.
- Bremains unaffected.
- Cincreases.
- Dnone of the above
13Two identical blocks of iron are placed in contact, one at 10°C and the other at 20°C. If the cooler block cools to 5°C and the warmer block warms to 25°C, this would violate the
- Athird law of thermodynamics.
- Bsecond law of thermodynamics.
- Cfirst law of thermodynamics.
- Dnone of the above
14Systems alone tend to move toward
- Adisorder.
- Border.
- Ctemperature inversions.
- Dnone of the above
15Entropy measures temperature
- Aat constant pressure.
- Bas pressure increases.
- Cat constant volume.
- Dall of the above
- Enone of the above
16As a system becomes more disordered, entropy
- Aincreases.
- Bremains the same.
- Cdecreases.
17A quantity of water has more entropy when it is
- Aboiling.
- Bfrozen ice.
- Cat room temperature.
18The frequency of a certain wave is 10 hertz and its period is
- A100 seconds.
- B0.1 seconds.
- C10 seconds.
- Dnone of the above
19A 60-vibration-per-second wave travels 30 meters in 1 second. Its frequency is
- A60 hertz and it travels at 30 m/s.
- B1800 hertz and it travels at 2 m/s.
- C30 hertz and it travels at 60 m/s.
- Dnone of the above
20If you double the frequency of a vibrating object, its period
- Ais quartered.
- Bdoubles.
- Chalves.
21An object that completes 10 vibrations in 20 seconds has a frequency of
- A2 hertz.
- B200 hertz.
- C0.5 hertz.
22The compressions and rarefactions in a longitudinal wave travel in
- Aa vacuum.
- Bopposite directions.
- Cthe same direction.
23Which of these is a longitudinal wave?
- Aradio
- Bsound
- Clight
- Dall of the above
- Enone of the above
24Which equation is correct for wave speed?
- Awave speed = frequency x wavelength
- Bwave speed = (1/period) x wavelength
- Cboth of these
- Dneither of these
25A Doppler effect occurs when a source of sound moves
- Atowards you.
- Baway from you.
- Ceither of these
- Dneither of these
26What is the wave speed of a wave traveling an average distance of 6 meters in one second?
- A6 m/s
- B1 m/s
- Cless than 0.2 m/s
- D3 m/s
- Emore than 6 m/s
27A red shift for light indicates that the light source is moving
- Atoward you.
- Baway from you.
- Cboth of these
- Dneither of these
28A blue shift for light indicates that the light source is moving
- Atoward you.
- Baway from you.
- Cboth of these
- Dneither of these
Información
- Descripción
- Change of phase & Thermodynamics.
- Autor
- Winston Schultz
- Idioma
- English
- Visitas
- 47
- Etiquetas
- Valoración
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