HESI A2
HESI A2 Physics Quizlet
1. A common example of a shear-thinning (non-Newtonian) fluid is:
- A. Water
- B. Ketchup
- C. Air
- D. Alcohol
Correct answer: B
Rationale: The correct answer is B: Ketchup. Shear-thinning fluids become less viscous under stress. Ketchup is an example of a shear-thinning fluid because its viscosity decreases when it is shaken or squeezed, allowing it to flow more easily. Choice A, Water, is a Newtonian fluid with a constant viscosity regardless of stress. Choice C, Air, is also a Newtonian fluid. Choice D, Alcohol, does not exhibit shear-thinning behavior; it typically has a constant viscosity as well.
2. Which word is not spelled correctly in the context of the following sentence? The pharmacist seemed to disagree with the prescription designated by the physician.
- A. pharmacist
- B. prescription
- C. designated
- D. physician
Correct answer: B
Rationale: The word 'prescription' in the sentence is misspelled as 'proscription.' A prescription is a written order for medication or treatment provided by a healthcare professional, while a proscription means a forbidding or prohibition. The other choices (A, C, D) are all correctly spelled in the context of the sentence.
3. A person consumed 75 grams of protein. This is 30% of the recommended daily intake (RDI) for protein. How many grams of protein does the person need to consume to meet the full RDI?
- A. 250 grams
- B. 225 grams
- C. 260 grams
- D. 300 grams
Correct answer: A
Rationale: To find the full RDI, divide the amount of protein consumed (75 grams) by 30% (or 0.30): 75 รท 0.30 = 250 grams. Therefore, the person needs 250 grams of protein to meet the full RDI. Choice A is correct because it accurately calculates the amount needed to reach the full RDI. Choices B, C, and D are incorrect as they do not correctly calculate the total amount of protein needed based on the given information.
4. Why did Macmillan add iron rims to the tires of his bicycle?
- A. Increase the weight of the bicycle.
- B. Enhance the durability of the tires.
- C. Reduce the bumpiness of the ride.
- D. Decrease the level of fatigue during the ride.
Correct answer: B
Rationale: Macmillan added iron rims to his bicycle tires to enhance their durability and make them last longer. This innovation aimed to prevent the tires from getting worn down quickly. Adding weight to the bicycle (Choice A) was not the purpose of adding iron rims. While adding iron rims could potentially reduce the bumpiness of the ride (Choice C) by providing more stability, the main objective was to improve tire longevity. Similarly, reducing the level of fatigue during the ride (Choice D) was not the primary reason for adding iron rims.
5. Throughout this passage the word suit means?
- A. A set of clothing to be worn together
- B. To be convenient or right for
- C. To request or appeal persistently
- D. One of the four categories in a deck of cards.
Correct answer: B
Rationale: In the passage, the word 'suit' is used in the context of card games, specifically in relation to playing cards of the same category. It refers to being convenient or right for a particular purpose in the game of Bridge. The other choices are incorrect because 'suit' in this passage does not refer to a set of clothing (option A), persistent requesting (option C), or one of the four categories in a deck of cards (option D). The passage clearly explains how the term 'suit' is used in the context of playing cards in the game of Bridge.
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