How can energy usage due to water heating be minimized?

How can energy usage due to water heating be minimized?



A) By turning the water heater thermostat temperature down
B) By taking a shower instead of a dip in bath tub
C) By not using running water while brushing your teeth

How is light produced?

How is light produced?


Answer: collision of moving particle with the atom

How can passive energy be utilized?

How can passive energy be utilized?



Answer: put more windows on the sunny side of the house (south)

An automobile engine gives 35,000 BTUs of mechanical energy from 100,000 BTUs of fuel. The transmission, axles and tires deliver 30,000 BTUs of mechanical energy to the highway, moving the car forward. What is the overall efficiency of this vehicle?

An automobile engine gives 35,000 BTUs of mechanical energy from 100,000 BTUs of fuel. The transmission, axles and tires deliver 30,000 BTUs of mechanical energy to the highway, moving the car forward. What is the overall efficiency of this vehicle?



Answer: 30%

Energy demand is a/an

Energy demand is a/an



Answer: exponential function - longer it goes, the more rapidly it grows

21 million Joules of chemical energy are supplied to a boiler in a power plant. 5,000,000 Joules of energy are lost up the smokestack. The boiler radiates 1.5 million Joules of heat to the atmosphere. What is the efficiency of the boiler?

21 million Joules of chemical energy are supplied to a boiler in a power plant. 5,000,000 Joules of energy are lost up the smokestack. The boiler radiates 1.5 million Joules of heat to the atmosphere. What is the efficiency of the boiler?



Answer: 0.690

What is doubling time?

What is doubling time?



Answer: time during which the initial quantity increases by a factor of two

Large energy companies have drilled thousands of wells to exploit the Marcellus Shale formation. A Pennsylvania motel operator finds that her previously struggling motel is suddenly fully booked most of the time with people who are working for these natural gas operations. This is an example of

Large energy companies have drilled thousands of wells to exploit the Marcellus Shale formation. A Pennsylvania motel operator finds that her previously struggling motel is suddenly fully booked most of the time with people who are working for these natural gas operations. This is an example of



Answer: an externality

Work done is measured as

Work done is measured as



Answer: the force against an object times the distance it moved

How does GABA cause inhibition?

How does GABA cause inhibition?




Answer: Increasing the flow of Cl- ions into cells.

How do Benzodiazepines work?

How do Benzodiazepines work?



Answer: Anxiolytics; Co-activators of GABA

How can phototherapy treat SAD?

How can phototherapy treat SAD?



Answer: By suppressing melatonin in the day which is though to aid SAD.

What is Cushing's Syndrome caused by?

What is Cushing's Syndrome caused by?



Answer: High levels of adrenal glucocorticoids that lead to depression.

Why is PCP considered a psychomimetic?

Why is PCP considered a psychomimetic?



Answer: Produces both positive and negative symptoms of Schizophrenia.

What is the advantage of using Atypical Antipsychotics?

What is the advantage of using Atypical Antipsychotics?



Answer:


  1. Less likelihood of motor side-effects.
  2. Effective at treating both positive and negative symptoms but not cognitive dysfunction.


Cortical abnormalities of Schizophrenia?

Cortical abnormalities of Schizophrenia?




Answer: thicker corpus callosum and loss of grey matter in the frontal lobe