FREE PICAT General Science Questions and Answers

Question 1

When two forces act against each other on an item, the resulting force is

Accepted Answer

the difference between the two forces

Answer

When two forces act on an object in opposite directions, they counteract each other. The resulting or net force is calculated by finding the difference between the magnitudes of the two forces. The object will then accelerate in the direction of the larger force, or remain in equilibrium if the forces are equal.

Question 2

Which two components make up the formal binomial nomenclature (or scientific name) of a living organism?

Accepted Answer

Genus and Species

Answer

Binomial nomenclature, the formal system for naming species, consists of two parts. The first part is the genus name, which is always capitalized, and the second part is the specific epithet, or species name, which is never capitalized. Both parts are typically italicized, such as in *Homo sapiens*, providing a unique and universally recognized scientific name for each organism.

Question 3

Of the following, which one is NOT a fruit?

Accepted Answer

Carrots

Answer

Botanically, a fruit is defined as the mature ovary of a flowering plant, which typically contains seeds. Tomatoes, corn kernels, and peppers all fit this botanical definition as they develop from the flower's ovary and enclose seeds. Carrots, however, are root vegetables; they are the enlarged taproot of the plant and do not contain seeds, thus they are not fruits.

Question 4

Watts serve as a measuring unit for

Accepted Answer

Power

Answer

Watts (W) are the standard unit of power in the International System of Units (SI). Power is defined as the rate at which work is done or energy is transferred. One watt is equivalent to one joule per second (J/s), indicating the amount of energy consumed or produced per unit of time.

Question 5

How many degrees does water go from its boiling point to its freezing point on a Celsius thermometer?

Accepted Answer

100 degrees

Answer

On the Celsius temperature scale, the freezing point of water is defined as 0 degrees Celsius (°C) at standard atmospheric pressure. The boiling point of water is defined as 100 degrees Celsius (°C) under the same conditions. Therefore, the temperature difference between water's boiling point and freezing point on a Celsius thermometer is exactly 100 degrees.

Picat Practice Test

Picat Practice Test

FREE PICAT General Science Questions and Answers