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GrudgeBall Thermal E
GrudgeBall Question Set Thermal Energy
| Question | Answer |
|---|---|
| Evaporation takes place when matter changes from a a. solid to a liquid. b. solid to a gas. c. liquid to a gas. d. gas to a liquid. e. gas to a solid. | C 1 Point |
| Condensation occurs when matter changes from a. gas to a liquid. b. solid to a gas. c. solid to a liquid. d. liquid to a gas. e. gas to a solid. | A 1 Point |
| When water freezes, it a. absorbs energy. b. gives off energy. c. neither gives off nor absorbs energy. | B 1 Point |
| An air sample contains 25% of the amount of water vapor it is capable of holding. The air's relative humidity is a. 25%. b. 50%. c. 75%. d. 125%. e. none of the above | A 1 Point |
| Plastic foam is a good heat a. conductor. b. insulator. c. emitter. d. absorber. e. radiator. | B 1 Point |
| Heat travels from the sun to Earth by a. conduction. b. radiation. c. convection. d. insulation. e. vacuumization. | B 1 Point |
| The reason light-colored clothes help keep you cool in warm weather is that clothes of light color a. weigh less. b. have a lot of spaces in them. c. reflect a lot of energy. d. absorb energy, leaving little to pass through. e. all of the above | C 1 Point |
| Temperature is related mostly to the _____. a. average molecular kinetic energy in a substance b. total kinetic energy in something c. average energy in a substance d. total energy in something e. average kinetic energy of an object | A 1 Point |
| Which temperature scale labels the freezing point of water at 0 degrees? a. Celsius b. Caloric c. Kelvin d. Fahrenheit | A 1 Point |
| Heat is the _____. a. average amount of energy per molecule contained in an object b. total amount of energy contained in an object c. energy transferred between objects because of a temperature difference d. amount of energy all the molecules have | C 1 Point |
| Heat is measured in _____. a. kilocalories b. joules c. calories d. all of the above e. none of the above | D 1 Point |
| Specific heat capacity is related to the amount of internal energy _____. a. transferred by one molecule b. one molecule contains c. a specific object has d. needed to change the temperature of one gram of a substance one degree | D 1 Point |
| The fact that desert sand is very hot in the day and very cold at night is evidence that sand has a _____. a. low specific heat capacity b. high specific heat capacity | A 1 Point |
| A bimetallic strip will bend when heated because _____. a. metals bend when heated b. each metal expands at different rates c. each side of the strip is at a different temperature d. metals contract when heated e. all of the above | B 1 Point |
| Which is denser, ice at 0 degrees C or water at 4 degrees C? a. The water b. The ice c. They both have the same density. | A 1 Point |
| The first law of thermodynamics is a restatement of the a. Carnot cycle. b. law of heat addition. c. principle of entropy. d. conservation of energy. e. none of the above | D 2 Points |
| When mechanical work is done on a system, there can be an increase in its a. temperature. b. internal energy. c. both of the above d. none of the above | C 2 Points |
| When a volume of air is compressed and no heat enters or leaves, the air temperature will a. increase. b. remain unchanged. c. decrease. | A 2 Points |
| As a system becomes more disordered, entropy a. remains the same. b. decreases. c. increases. | C 1 Point |
| The process of changing from a liquid to a gas is condensation. T or F | F 1 Point |
| Heat transfer by means of electrons colliding with other electrons in a metal is convection. T or F | F 1 Point |
| The average kinetic energy of molecules in a substance is related to temperature. T or F | T 1 Point |
| Heat is the energy that moves from one object to another because of a temperature difference. T or F | T 1 Point |
| Systems left alone tend to move to a state of greater entropy. | T 1 Point |
| Take a shower in a steamy bathroom then walk to a bedroom and you feel colder. Explain this using the following terms: evaporation, condensation, saturated. | 2 Points |
| Conduction in metals occurs when: a. atoms give off heat through electromagnetic waves b. large numbers of atoms move from place to place c. waves travel from one place to another through a vacuum d. electrons bump into atoms and other electrons | D 1 Point |
| Convection occurs when: a. waves travel from one place to another through a vacuum b. electrons bump into other electrons c. atoms give off heat in the form of waves d. large numbers of atoms move from place to place | D 1 Point |
| Metal feels colder than wood at the same temperature. Explain this. | 2 Points |
| The Change of phase from a liquid to a gas that takes place at the surface of a liquid is called a. condensation b. thermodynamics c. evaporation d. boiling | C 1 Point |
| Which law states that heat will never flow from cold to hot objects? a.) first law of thermodynamics b.) Newton's law of Cooling c.) second law of thermodynamics d.) Newton's First Law | C 1 Point |
Created by:
BaldingCypress
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