General Science Practice Test Flashcards
7 cards from real ASVAB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 General Science Practice Test flashcards as text
Which organelle is responsible for producing energy in the form of ATP through cellular respiration?
Answer: Mitochondria
Mitochondria carry out cellular respiration, converting glucose and oxygen into ATP, the cell's primary energy currency.
What is the pH of a neutral solution at 25°C?
Answer: 7
A neutral solution has equal concentrations of H⁺ and OH⁻ ions, corresponding to a pH of 7.
Which type of wave requires a medium (such as air or water) to travel through?
Answer: Mechanical wave
Mechanical waves, such as sound waves, need a physical medium to propagate and cannot travel through a vacuum.
What process do plants use to convert sunlight into chemical energy stored as glucose?
Answer: Photosynthesis
Photosynthesis uses sunlight, carbon dioxide, and water to produce glucose and oxygen in the chloroplasts of plant cells.
An atom that gains or loses electrons becomes a(n):
Answer: Ion
When an atom gains or loses electrons, it acquires a net electric charge and is called an ion.
What is the approximate temperature at which water boils at sea level?
Answer: 100°C
Water boils at 100°C (212°F) at standard atmospheric pressure (sea level).
Which layer of the atmosphere contains the ozone layer that absorbs ultraviolet radiation?
Answer: Stratosphere
The ozone layer is found in the stratosphere, roughly 15–35 km above Earth's surface, where it absorbs harmful UV radiation.