AFCT General Science Concepts 2

Question 1

What is the primary function of white blood cells in the human body?

Accepted Answer

Fight infections

Answer

White blood cells (leukocytes) are the body's primary defense against infections and foreign invaders.

Question 2

What is the chemical formula for table salt?

Accepted Answer

NaCl

Answer

Table salt is sodium chloride, with the chemical formula NaCl.

Question 3

Which planet in our solar system has the most moons?

Accepted Answer

Saturn

Answer

Saturn has the most confirmed moons of any planet in our solar system, surpassing Jupiter in recent discoveries.

Question 4

What type of energy transformation occurs when a battery powers a flashlight?

Accepted Answer

Chemical to electrical to light

Answer

A battery converts stored chemical energy into electrical energy, which then powers the bulb to produce light energy.

Question 5

What is the function of the ozone layer in Earth's atmosphere?

Accepted Answer

Blocks harmful ultraviolet radiation

Answer

The ozone layer in the stratosphere absorbs and blocks most of the sun's harmful ultraviolet (UV) radiation from reaching Earth's surface.

(AFCT) Armed Forces Classification Test Practice Test