Chapter 6 Assessment (30/30)
1. Which of the following is consistent with the laws of thermodynamics’ governing
energy?
a. You eat a “quarter-pounder” hamburger and assemble exactly a quarter-pound of
additional body weight on your body
b. When a liter of gasoline is burned in a car engine, 100% of its energy goes into
moving the car along the road
c. Eventually sunlight that is absorbed on the earth returns to space as dispersed
heat
d. Chemical bonds are a case of converting energy to matter; breaking the bonds
converts matter to energy
e. A calorie of sunlight becomes a calorie of plant tissue that, eaten by you,
becomes a calorie of heat lost in muscle "power”
2. Which best describes the first law of thermodynamics?
a. Some useful energy is lost as heat whenever an energy transfer occurs.
b. Energy is not created nor destroyed, but it can change from one energy form to
another.
c. Energy can be created from matter or used to produce matter.
d. Energy transfers are always 100% efficient in changing energy from one useful
form to another.
e. Energy is changed from one form to another with a loss of usable energy.
3. Which of the following scenarios DOES NOT accurately represent the second law of
thermodynamics?
1. Which of the following is consistent with the laws of thermodynamics’ governing
energy?
a. You eat a “quarter-pounder” hamburger and assemble exactly a quarter-pound of
additional body weight on your body
b. When a liter of gasoline is burned in a car engine, 100% of its energy goes into
moving the car along the road
c. Eventually sunlight that is absorbed on the earth returns to space as dispersed
heat
d. Chemical bonds are a case of converting energy to matter; breaking the bonds
converts matter to energy
e. A calorie of sunlight becomes a calorie of plant tissue that, eaten by you,
becomes a calorie of heat lost in muscle "power”
2. Which best describes the first law of thermodynamics?
a. Some useful energy is lost as heat whenever an energy transfer occurs.
b. Energy is not created nor destroyed, but it can change from one energy form to
another.
c. Energy can be created from matter or used to produce matter.
d. Energy transfers are always 100% efficient in changing energy from one useful
form to another.
e. Energy is changed from one form to another with a loss of usable energy.
3. Which of the following scenarios DOES NOT accurately represent the second law of
thermodynamics?
