Science Reviewer Answer Key Flashcards

A collection of vocabulary terms, answer key entries, and step-by-step problem calculations from the Science Reviewer.

Absolute humidity

Correct answer for Question 1 (Option C) in the Science Reviewer Answer Key.

Bose-Einstein condensate

Correct answer for Question 21 (Option A) in the Science Reviewer Answer Key.

Law of conservation of energy

Correct answer for Question 77 (Option D) in the Science Reviewer Answer Key.

Law of conservation of mass

Correct answer for Question 78 (Option A) in the Science Reviewer Answer Key.

Law of definite proportion

Correct answer for Question 79 and Question 80 (Option C) in the Science Reviewer Answer Key.

Law of multiple proportion

Correct answer for Question 81 (Option D) in the Science Reviewer Answer Key.

Density Calculation (Question 106)

Calculated as $\text{Volume} = 3 \times 2 \times 2 = 12\,\text{cm}^3$ and $\text{Density} = 150 \div 12 = 12.5\,\text{g/cm}^3$. The closest listed choice is Option A ($13\,\text{g/cm}^3$).

Mass Calculation (Question 107)

Calculated as $\text{Mass} = \text{density} \times \text{volume} = 1.03 \times 1.020 = 1.0506\,\text{g} \approx 1.05\,\text{g}$ (Option D).

Volume Calculation (Question 108)

Calculated as $\text{Volume} = \text{mass} \div \text{density} = 220 \div 0.659 = 333.85\,\text{cm}^3$ (Option D).

Mass Calculation (Question 109)

Calculated as $\text{Mass} = \text{density} \times \text{volume} = 1.6 \times 33 = 52.8\,\text{g}$ (Option A).

Fahrenheit Temperature Conversion (Question 110)

Calculated as $^\circ\text{F} = (35 \times \frac{9}{5}) + 32 = 95^\circ\text{F}$ (Option B).

Celsius Temperature Conversion (Question 111)

Calculated as $^\circ\text{C} = (95 - 32) \times \frac{5}{9} = 35^\circ\text{C}$ (Option C).

Kelvin Temperature Conversion (Question 112)

Calculated as $\text{K} = 80 + 273 = 353\,\text{K}$ (Option B).

Work Calculation 1 (Question 113)

Calculated as $\text{Work} = F \times d = 25 \times 2 = 50\,\text{J}$ (Option C).

Work Calculation 2 (Question 114)

Calculated as $\text{Work} = F \times d = 25 \times 0.25 = 6.25\,\text{J}$ (Option B).

Work Calculation 3 (Question 115)

Calculated as $\text{Work} = F \times d = 10 \times 5 = 50\,\text{J}$ (Option B).

Work Calculation 4 (Question 120)

Calculated as $\text{Work} = F \times d = 100 \times 5 = 500\,\text{J}$ (Option C).

Power Calculation (Question 121)

Calculated as $\text{Power} = \text{Work} \div \text{time} = 500 \div 5 = 100\,\text{W}$ (Option C).

Work Application Condition (Question 125)

Work is done when you applied a force and a displacement on an object (Option A).

Speed Calculation (Question 131)

Calculated as $\text{Speed} = \text{distance} \div \text{time} = 15 \div 10 = 1.5\,\text{m/s}$ (Option B).

Distance Calculation (Question 132)

Calculated as $\text{Distance} = \text{speed} \times \text{time} = 15 \times 2 = 30\,\text{m}$ (Note: No correct option is listed in the reviewer).

Velocity Calculation (Question 134)

Calculated as $v = u + at = 5 + (2 \times 10) = 25\,\text{m/s}$ (Option C).

Distance Traveled Calculation (Question 137)

With $1\,\text{min} = 60\,\text{s}$, distance is calculated as $\text{Distance} = 3 \times 60 = 180\,\text{m}$ (Option D).

Total Distance Calculation (Question 138)

Calculated as $\text{Total distance} = 4 + 2 = 6\,\text{m}$ (Option D).

Displacement Calculation (Question 139)

Calculated as $\text{Displacement} = 4 - 2 = 2\,\text{m}$ (Option B).

Potential Energy Calculation 1 (Question 141)

Calculated as $\text{PE} = mgh = 10 \times 9.8 \times 0.50 = 49\,\text{J}$ (Option C).

Potential Energy Calculation 2 (Question 142)

Calculated as $\text{PE} = mgh = 5 \times 9.8 \times 0.35 = 17.15\,\text{J} \approx 17.2\,\text{J}$ (Option D).

Kinetic Energy Calculation (Question 143)

Calculated as $\text{KE} = \frac{1}{2}mv^2 = \frac{1}{2}(1500)(25^2) = 468,750\,\text{J} \approx 469,000\,\text{J}$ (Option B).

Velocity from Kinetic Energy (Question 144)

Calculated as $v = \sqrt{\frac{2\text{KE}}{m}} = \sqrt{\frac{34,000}{45}} \approx 27.5\,\text{m/s}$, with closest listed choice Option A ($27\,\text{m/s}$).

Asthenosphere

Correct answer for Question 146 (Option A) in the Science Reviewer Answer Key.

Covalent bonding

Correct answer for Question 149 (Option C) in the Science Reviewer Answer Key.

Double replacement reaction

Correct answer for Question 150 (Option B) in the Science Reviewer Answer Key.