ASVAB PRACTICE TEST A

Part 1: General Science (GS)

11 Minutes 25 Questions

  1. Directions: In this section, you will be tested on your knowledge of concepts in science generally reviewed in high school. For each question, select the best answer and mark the corresponding oval on your answer sheet.

  2. A genus classification contains several related

    1. species
    2. families
    3. orders
    4. phyla

  3. Particles that orbit the nucleus of an atom are

    1. anions
    2. electrons
    3. positrons
    4. photons

  4. As a human breathes, air is first warmed and filtered in the

    1. trachea
    2. pharynx
    3. oral cavity
    4. nasal cavity

  5. In the food chain described below, which is the tertiary consumer?

    dandelion → rabbit → fox → coyote

    1. dandelion
    2. rabbit
    3. fox
    4. coyote

  6. The process by which a solid becomes a gas is known as

    1. boiling
    2. sublimation
    3. melting
    4. diffusion

  7. The gravitational force the Moon exerts on the Earth is

    1. less than one-half as much as that exerted by the Earth on the Moon
    2. one-half as much as that exerted by the Earth on the Moon
    3. the same as that exerted by the Earth on the Moon
    4. more than that exerted by the Earth on the Moon

  8. Fungi are organisms that break down dead matter and return the organic material back into the environment for reuse. They are examples of

    1. producers
    2. decomposers
    3. consumers
    4. mutualists

  9. What is the freezing point of water in Kelvin?

    1. −273 K
    2. 0 K
    3. 100 K
    4. 273 K

  10. Tough elastic tissues found in the joints that connect bones to bones are called

    1. ligaments
    2. tendons
    3. cartilage
    4. muscles

  11. Stress, a poor diet, cigarette smoking, and hereditary factors all contribute to individuals developing

    1. diarrhea
    2. high blood pressure
    3. gall stones
    4. anemia

  12. Which clouds are thin and wispy and occur high in the atmosphere?

    1. cirrus
    2. cumulus
    3. stratus
    4. stratocumulus

  13. Fossils are most likely to be found in which of the following types of rock?

    1. igneous
    2. metamorphic
    3. sedimentary
    4. volcanic

  14. Animals that consume only plants are called

    1. saprophytes
    2. herbivores
    3. carnivores
    4. omnivores

  15. What type of star is the Sun?

    1. red dwarf
    2. blue giant
    3. white dwarf
    4. yellow dwarf

  16. Which of the following is a group of organisms of the same species living in the same region?

    1. biome
    2. ecosystem
    3. community
    4. population

  17. Which one of these planets is NOT an outer planet?

    1. Jupiter
    2. Saturn
    3. Uranus
    4. Earth

  18. A boulder that begins to roll down a hill is an example of an energy conversion from

    1. potential to thermal
    2. potential to kinetic
    3. kinetic to thermal
    4. kinetic to potential

  19. The lowest layer of the Earth’s atmosphere is called the

    1. ionosphere
    2. mesosphere
    3. stratosphere
    4. troposphere

  20. According to the law of conservation of energy

    1. energy is the capacity to do work
    2. energy can neither be created nor destroyed
    3. energy is possessed by a moving object
    4. energy is stored in an object as a result of its position, shape, or state

  21. As an ambulance passes, its pitch seems to change. This perception is best explained by

    1. convection
    2. Newton’s third law
    3. the Doppler effect
    4. momentum

  22. A concave lens is also known as a

    1. focal point
    2. converging lens
    3. convex lens
    4. diverging lens

  23. The smallest particle of a covalent compound that can exist in a free state and still retain the characteristics of that compound is a(n)

    1. proton
    2. quark
    3. atom
    4. molecule

  24. Which of the following is most responsible for oceanic tides?

    1. the orbit of the Earth around its own axis
    2. the magnetic polarity of the Earth
    3. the orbit of the Moon around the Earth
    4. the orbit of the Earth around the Sun

  25. In the Periodic Table of the Elements, the elements in a column are referred to as a

    1. period
    2. group
    3. configuration
    4. unit

  26. In a chemical change, the molecules that enter the reaction are called

    1. reactants
    2. products
    3. compounds
    4. elements