FREE AFCT General Science Concepts Questions and Answers

Question 1

A soldier wearing a thick fleece jacket in a cold environment stays warm primarily because the jacket's material is effective at which of the following?

Accepted Answer

Trapping a layer of air, which is a poor conductor of heat

Answer

Generating thermal energy through friction

Answer

Reflecting the cold environment away from the body

Answer

Increasing the body's metabolic heat production

Question 2

A maintenance crew notices that a steel tool left outdoors has developed a reddish-brown coating of rust. This rust formation is a classic example of what type of chemical reaction?

Accepted Answer

Oxidation

Answer

Neutralization

Answer

Sublimation

Answer

Decomposition

Question 3

An aircraft carrier's catapult system launches a jet, causing it to accelerate from a standstill to over 150 mph in just a few seconds. This rapid change in velocity from a large applied force is a direct application of which principle?

Accepted Answer

Newton's Second Law (Force = mass × acceleration)

Answer

Newton's First Law (Inertia)

Answer

Newton's Third Law (Action-Reaction)

Answer

The Law of Conservation of Energy

Question 4

During a field exercise on a cool, clear night, soldiers notice that the outside of their canteens are wet with dew by morning. This formation of liquid water from vapor in the air is an example of what process?

Accepted Answer

Condensation

Answer

Evaporation

Answer

Precipitation

Answer

Transpiration

Question 5

On a remote mission, a team relies on local vegetation as a potential resource. The primary process by which green plants convert light energy from the sun into chemical energy (food) is known as:

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Decomposition

Answer

Transpiration

Question 6

A puddle of water on a hot runway slowly disappears over time without ever boiling. Which scientific process best describes this change from a liquid to a gas?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Sublimation

Answer

Freezing