ASVAB General Science 5

Question 1

Which subatomic particle has a negative charge?

Accepted Answer

Electron

Answer

Electrons carry a negative charge and orbit the nucleus of an atom in energy shells.

Question 2

What is the primary function of red blood cells?

Accepted Answer

Carry oxygen throughout the body

Answer

Red blood cells contain hemoglobin, which binds oxygen in the lungs and delivers it to body tissues.

Question 3

Which law states that energy cannot be created or destroyed, only transformed?

Accepted Answer

First Law of Thermodynamics

Answer

The First Law of Thermodynamics (conservation of energy) states that the total energy of an isolated system remains constant.

Question 4

What is the speed of light in a vacuum, approximately?

Accepted Answer

300,000 km/s

Answer

Light travels at approximately 300,000 kilometers per second (3 × 10⁸ m/s) in a vacuum.

Question 5

Which element is essential for the formation of bones and teeth?

Accepted Answer

Calcium

Answer

Calcium, often obtained from dairy products and leafy greens, is the primary mineral that gives bones and teeth their strength.

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