ATI TEAS 7
Mathematics
1. A birdbath has a hemispherical bowl with a diameter of 30cm. What is its volume?
- A. 675 cu cm
- B. 1350 cu cm
- C. 2700 cu cm
- D. 4050 cu cm
Correct answer: C
Rationale: Use half the formula for a sphere's volume: (2/3) * À * (radius)^3. Calculate the radius (15cm) and substitute: (2/3) * À * (15cm)^3 ≈ 2700 cu cm.
2. Tissues are groups of cells with similar:
- A. Appearance only
- B. Function and structure
- C. Location only
- D. Age only
Correct answer: B
Rationale: The correct answer is B: 'Function and structure.' Tissues are groups of cells that work together to perform a specific function in the body. These cells have both similar functions, such as carrying out a specific task like contracting in muscle tissue, and similar structures, such as having similar shapes or types of organelles. This allows them to work together efficiently and effectively. Choices A, C, and D are incorrect because tissues are defined by more than just appearance, location, or age; they are primarily characterized by their shared function and structure.
3. A patient weighs 180 pounds. What is their weight in kilograms (1kg = 2.2lbs)?
- A. 68kg
- B. 75kg
- C. 82kg
- D. 90kg
Correct answer: C
Rationale: Divide the weight in pounds (180) by the conversion factor (2.2lbs/kg).
4. A car accelerates from rest. What happens to its kinetic energy and work done on it?
- A. Both kinetic energy and work done increase
- B. Kinetic energy increases, but work done remains constant.
- C. Work done increases, but kinetic energy remains constant.
- D. Both kinetic energy and work done remain constant.
Correct answer: A
Rationale: During acceleration, the car's speed increases, leading to rising kinetic energy. Simultaneously, the force applied to accelerate the car does work on it, increasing the work done.
5. A patient needs to take 2 tablets for every 30 pounds of body weight. If they weigh 150 pounds, how many tablets should they take?
- A. 5
- B. 10
- C. 15
- D. 20
Correct answer: A
Rationale: Divide the patient's weight (150 pounds) by the ratio denominator (30 pounds/tablet) to get 5 tablets.
6. What is the term for a hydrocarbon chain with no double or triple bonds between carbon atoms?
- A. Saturated
- B. Unsaturated
- C. Aromatic
- D. Alkene
Correct answer: A
Rationale: A saturated hydrocarbon chain has only single bonds between carbon atoms. The other choices are associated with unsaturation or aromaticity.
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