how many meters are there in 5 kilometers

HESI A2

HESI A2 Quizlet Math

1. How many meters are in 5 kilometers?

A. 1000
B. 5000
C. 10000
D. 500

Correct answer: B

Rationale: To convert kilometers to meters, you need to multiply the number of kilometers by 1000 since there are 1000 meters in 1 kilometer. Therefore, 5 kilometers is equal to 5 × 1000 = 5000 meters. Choice A (1000) is incorrect because it represents the number of meters in 1 kilometer, not 5 kilometers. Choice C (10000) is incorrect as it is the result of multiplying 10 (not 5) by 1000. Choice D (500) is incorrect as it represents half the correct conversion value.

2. What conclusion can be drawn about the article?

A. The author explains differences in eating methods.
B. Eating habits vary across different cultures.
C. Space travel has posed challenges for eating habits.
D. Chopsticks are more suitable than forks for space travel.

Correct answer: A

Rationale: The correct answer is A. The passage discusses different eating methods in various cultures, focusing on their differences. The author describes the development of cutlery in European cultures, the use of chopsticks in China, and how space travel has influenced eating tools for astronauts. Choice B is incorrect because the passage emphasizes the differences rather than the similarities in eating habits across cultures. Choice C is partially supported by the passage as it mentions that space travel has created new challenges for consuming food, but it is not the main conclusion of the article. Choice D is not directly supported by the passage as it discusses the challenges of using chopsticks and forks in space rather than stating that chopsticks are superior to forks.

3. At what temperature does water boil in °F?

A. 210°F
B. 212°F
C. 215°F
D. 220°F

Correct answer: B

Rationale: Water boils at 212°F under standard atmospheric pressure. This is the point at which water changes from a liquid to a gas phase. Choice A (210°F) is incorrect as it is below the boiling point of water. Choice C (215°F) and Choice D (220°F) are also incorrect as they are above the boiling point of water.

4. Select the word or phrase that makes the following sentence grammatically correct. Kalinda spends part of her day ___________ data from the lab.

A. inputs
B. input
C. having input
D. inputting

Correct answer: D

Rationale: The correct form in this sentence is 'inputting,' as it is the gerund form of the verb 'input.' The gerund form is used to show that Kalinda spends part of her day engaging in the ongoing action of inputting data from the lab. Choice A ('inputs') is incorrect as it is the third-person singular form of the verb, which does not fit here. Choice B ('input') is incorrect as it is the base form of the verb and does not convey the ongoing action required in this context. Choice C ('having input') is incorrect as it suggests a completed action rather than an ongoing one.

5. Which hormone stimulates the production of red blood cells?

A. Insulin
B. Erythropoietin
C. Glucagon
D. Thyroxine

Correct answer: B

Rationale: Erythropoietin is the correct answer. It is the hormone responsible for stimulating the production of red blood cells. Erythropoietin is produced by the kidneys in response to low oxygen levels in the blood. This hormone promotes the generation of more red blood cells to increase the blood's oxygen-carrying capacity. Insulin (Choice A), Glucagon (Choice C), and Thyroxine (Choice D) do not stimulate the production of red blood cells. Insulin regulates blood sugar levels, Glucagon increases blood sugar levels, and Thyroxine regulates metabolism.