General Science: Physics and Chemistry Concepts 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: Physics and Chemistry Concepts flashcards as text
What is the formula for calculating work done on an object?
Answer: W = F × d
Work equals force multiplied by distance (W = F × d), measured in joules.
Which gas makes up the largest percentage of Earth's atmosphere?
Answer: Nitrogen
Nitrogen (N₂) makes up approximately 78% of Earth's atmosphere, while oxygen accounts for about 21%.
What is an isotope?
Answer: An atom with a different number of neutrons than a standard atom
Isotopes are atoms of the same element that have the same number of protons but a different number of neutrons.
Which of the following best describes a conductor?
Answer: A material that allows electricity to flow easily
Conductors, such as copper and silver, have free electrons that allow electric current to flow easily through them.
What happens to gas pressure when the volume of a container decreases at constant temperature (Boyle's Law)?
Answer: Pressure increases
Boyle's Law states that pressure and volume are inversely proportional at constant temperature, so reducing volume increases pressure.
Which type of electromagnetic radiation has the highest frequency?
Answer: Gamma rays
Gamma rays have the highest frequency (and shortest wavelength) on the electromagnetic spectrum.
A solution with a pH of 3 is best described as:
Answer: Acidic
A pH below 7 indicates an acidic solution; pH 3 is a moderately strong acid.