ASVAB General Science 3 — Questions and Answers
Question 1: Which organelle is responsible for producing energy in the form of ATP in a cell?
- Nucleus
- Ribosome
- Mitochondria (Correct answer)
- Golgi apparatus
Correct answer: Mitochondria
Mitochondria generate ATP through cellular respiration, earning the nickname 'powerhouse of the cell.'
Question 2: What is the SI unit of electrical resistance?
- Volt
- Ampere
- Watt
- Ohm (Correct answer)
Correct answer: Ohm
The ohm (Ω) is the SI unit of electrical resistance, defined by Ohm's Law as voltage divided by current.
Question 3: Which type of rock is formed from cooling magma or lava?
- Sedimentary
- Metamorphic
- Igneous (Correct answer)
- Limestone
Correct answer: Igneous
Igneous rock forms when molten rock (magma underground, lava at the surface) cools and solidifies.
Question 4: A solution with a pH of 2 is best described as:
- Strongly basic
- Neutral
- Mildly acidic
- Strongly acidic (Correct answer)
Correct answer: Strongly acidic
The pH scale runs 0–14; values below 7 are acidic, and pH 2 indicates a strongly acidic solution.
Question 5: Which planet in our solar system has the most moons?
- Jupiter
- Saturn (Correct answer)
- Uranus
- Neptune
Correct answer: Saturn
Saturn holds the record with over 140 confirmed moons, surpassing Jupiter's count.
Question 6: What process do plants use to convert sunlight into chemical energy?
- Respiration
- Fermentation
- Photosynthesis (Correct answer)
- Transpiration
Correct answer: Photosynthesis
Photosynthesis uses light energy, water, and CO₂ to produce glucose and oxygen in plant chloroplasts.
Question 7: Which force keeps planets in orbit around the Sun?
- Electromagnetic force
- Strong nuclear force
- Gravity (Correct answer)
- Friction
Correct answer: Gravity
Gravity is the attractive force between masses that pulls planets toward the Sun, maintaining their orbital paths.
ASVAB General Science 3
Which organelle is responsible for producing energy in the form of ATP in a cell?