ASVAB General Science Practice Test 732048 Results

Your Results Global Average
Questions 5 5
Correct 0 3.27
Score 0% 65%

Review

1

The pitch of the siren of an approaching ambulance changes as it approaches you. This is an example of which of the following?

70% Answer Correctly

sound radiation

refraction

Doppler effect

reflection
Solution

The Doppler effect occurs when the source or listener (or both) of sound waves is moving. If they're moving closer together, the listener perceives the sound with a higher pitch and, when they're moving apart, the listener perceives the sound with a lower pitch.

2

During continental drift, the drifting plates move across which of the following?

50% Answer Correctly

liquid mantle

fault lines

water

sediment
Solution

The crust and the rigid lithosphere (upper mantle) is made up of approximately thirty separate plates. These plates more very slowly on the slightly more liquid mantle (asthenosphere) beneath them. This movement has resulted in continental drift which is the gradual movement of land masses across Earth's surface. Continental drift is a very slow process, occurring over hundreds of millions of years.

3

Minerals, vitamins, and fiber are:

69% Answer Correctly

carbohydrates

proteins

micronutrients

macronutrients
Solution

Minterals, vitamins, and fiber are micronutrients while proteins, carbohydrates, and fats are macronutrients.

4

As part of digestion, the liver produces bile which breaks down:

64% Answer Correctly

protein

sugars

fat

starches
Solution

The liver produces bile which emulsifies (separates) fat.

5

Tough fibrous cords of connective tissue that connect muscles to the skeleton are called:

71% Answer Correctly

vertebra

ligaments

tendons

cartilage
Solution

Tough fibrous cords of connective tissue called tendons connect muscles to the skeleton while another type of connective tissue called ligaments connect bones to other bones at joints (elbow, knee, fingers, spinal column).