ATI TEAS 7
Mathematics
1. A triangular scarf has sides measuring 10cm, 12cm, and 15cm. What is its perimeter?
- A. 27cm
- B. 32cm
- C. 37cm
- D. 45cm
Correct answer: C
Rationale: Simply add the lengths of all sides: perimeter = side1 + side2 + side3 = 10cm + 12cm + 15cm = 37cm.
2. Which of the following is NOT a common symptom of pregnancy?
- A. Fatigue
- B. Nausea
- C. Increased urination
- D. Loss of appetite
Correct answer: D
Rationale: The correct answer is D: "Loss of appetite." While it is common for pregnant individuals to experience fatigue, nausea, and increased urination due to hormonal changes and the body's adaptations during pregnancy, a loss of appetite is not typically a common symptom. Most pregnant individuals experience increased appetite, particularly in the early stages of pregnancy. This increased appetite is often attributed to the body's need for additional nutrients to support the growing fetus. Therefore, the absence of appetite loss makes option D the correct choice in this question.
3. Which of the following statements best describes Newton's first law of motion?
- A. An object in motion tends to stay in motion, and an object at rest tends to stay at rest unless acted upon by an external force.
- B. Force equals mass times acceleration.
- C. For every action, there is an equal and opposite reaction.
- D. The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
Correct answer: A
Rationale: Newton's first law of motion, also known as the law of inertia, states that an object in motion will remain in motion, and an object at rest will remain at rest unless acted upon by an external force. This principle highlights the concept of inertia, which is the tendency of objects to resist changes in their state of motion. Option A accurately captures this fundamental aspect of Newton's first law. Options B, C, and D describe Newton's second law, third law, and the relationship between force, acceleration, and mass, respectively.
4. The defining characteristic of an element is determined by the number of:
- A. Neutrons in its nucleus
- B. Electrons surrounding the nucleus
- C. Protons in its nucleus
- D. All of the above
Correct answer: C
Rationale: The correct answer is C: 'Protons in its nucleus.' An element is defined by the number of protons in its nucleus, known as the atomic number. This number determines the element's identity and its placement on the periodic table. Neutrons and electrons play important roles in an atom, but they do not define the element itself. Neutrons contribute to the atom's mass, while electrons are involved in chemical reactions and bonding. Therefore, the number of protons is the defining characteristic of an element.
5. A scientific theory is:
- A. A personal belief or hunch about how something works.
- B. A well-substantiated explanation based on evidence and repeated testing.
- C. A single experiment's findings not yet confirmed by others.
- D. A fixed and unchanging dogma beyond questioning.
Correct answer: B
Rationale: Theories in science are constantly evolving and open to revision as new data emerges, unlike personal beliefs or fixed dogmas.
6. Which of the following factors can contribute to erectile dysfunction in males?
- A. Diabetes
- B. Cardiovascular disease
- C. Neurological disorders
- D. All of the above
Correct answer: D
Rationale: The correct answer is D, 'All of the above.' Erectile dysfunction in males can be caused by various factors including diabetes, cardiovascular disease, and neurological disorders. Diabetes can lead to nerve damage and reduced blood flow, impacting erectile function. Cardiovascular disease can restrict blood flow to the penis, affecting erections. Neurological disorders can disrupt the signals between the brain and the reproductive system, interfering with the ability to achieve or maintain an erection. Therefore, all of these factors can contribute to erectile dysfunction in males.
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