ASVAB General Science Practice Test 40095 Results

Your Results Global Average
Questions 5 5
Correct 0 3.50
Score 0% 70%

Review

1

50°F is how many °C?

72% Answer Correctly

-10

58

10

122


Solution

The formula to convert from F° to C° is:

\(C° = {5 \over 9} (F° - 32)\)

plugging in our values gives:

\(C° = {5 \over 9} (50 - 32)\)

\(C° = {5 \over 9} (18)\)

\(C° = {90 \over 9}\)

\(C° = 10\)


2

Convert 0C° to F°.

72% Answer Correctly

0

16

32

-32


Solution

To convert from C° to F° use:

\(F° = {9 \over 5}C° + 32\)

\(F° = {9 \over 5}(0) + 32\)

\(F° = 0 + 32 = 32\)

 


3

Which of the following is the correct order for types of radiation from lowest to highest frequency?

63% Answer Correctly

radio waves → visible light → gamma rays

microwaves → radio waves → visible light

infrared waves → microwaves → ultraviolet light

visible light → ultraviolet light → radio waves


Solution

The electromagnetic spectrum covers all possible wavelengths and frequencies of radiation.  From lowest frequency (longest wavelength) to highest frequency (shortest wavelength) radiation: radio waves → microwaves → infrared waves → visible light → ultraviolet light → X-rays → gamma rays.


4

The ozone layer is in which of Earth's atmospheric layers?

66% Answer Correctly

troposphere

mesosphere

stratosphere

thermosphere


Solution

The stratosphere is just above the troposphere and is stratified in temperature with warmer layers higher and cooler layers closer to Earth. This increase in temperature is a result of absorption of the Sun's radiation by the ozone layer.


5

Gametes have how many pairs of chromosomes?

76% Answer Correctly

23

4

46

2


Solution

Reproductive (haploid) cells known as gametes have half as many (23) pairs of chromosomes as normal (diploid) cells. When the male gamete (sperm) combines with the female gamete (ovum) through meiosis to form a zygote, each gamete supplies half the chromosomes needed to form the normal diploid cells.