ATI TEAS 7
Physics
1. A ball is rolling across the floor and comes to a stop on its own. What force caused the ball to stop?
- A. Gravitational force
- B. Normal force from the floor
- C. Air resistance
- D. None of the above
Correct answer: C
Rationale: In the absence of other forces, air resistance will gradually slow down the ball until it stops.
2. Which structure connects a muscle to a bone, allowing movement to occur at a joint?
- A. Tendon
- B. Ligament
- C. Cartilage
- D. Bursa
Correct answer: a
Rationale: The correct answer is A: Tendon. Tendons are fibrous connective tissues that connect muscles to bones. They play a crucial role in allowing movement to occur at joints by transmitting the force generated by the muscle to the bone, resulting in movement. Ligaments (option B) connect bone to bone, providing stability to joints. Cartilage (option C) is a smooth, flexible tissue that covers the ends of bones and acts as a cushion. Bursa (option D) is a small fluid-filled sac that reduces friction between tissues. Therefore, tendons are specifically designed to connect muscles to bones for movement at joints.
3. What is the main idea of the passage?
- A. Petra is a modern city built for tourism.
- B. Petra's historical significance lies in its architectural achievements.
- C. Petra's prosperity was linked to its strategic location on trade routes.
- D. Petra's obscurity remains a mystery despite its rediscovery.
Correct answer: C
Rationale: B mentions Petra's architecture, but not its connection to trade. A and D are factually incorrect and not supported by the passage. Choice C accurately identifies Petra's rise and fall as tied to its position on the Silk Road, making it the main idea.
4. Define "acceleration" in terms of motion.
- A. Change in velocity over time
- B. Speed in a straight line
- C. Distance covered in a given time
- D. Force applied to an object
Correct answer: a
Rationale: Acceleration measures the rate of change of velocity with respect to time.
5. What is the scientific unit used to measure the radioactivity of a substance?
- A. Becquerel (Bq)
- B. Joule (J)
- C. Newton (N)
- D. Kelvin (K)
Correct answer: A
Rationale: Becquerel measures the number of nuclear decays per second in a radioactive sample.
6. Temperature Conversion & Interpretation: A patient's body temperature is 102°F. Convert this to °C and assess if it indicates a fever.
- A. 37°C (Normal)
- B. 39°C (Low-grade fever)
- C. 39°C (Fever)
- D. 42°C (Hyperthermia)
Correct answer: C
Rationale: Rationale: 1. To convert Fahrenheit to Celsius, you can use the formula: °C = (°F - 32) x 5/9. 2. Given that the patient's body temperature is 102°F, we can calculate the equivalent temperature in Celsius: °C = (102 - 32) x 5/9 °C = 70 x 5/9 °C = 350/9 °C ≈ 38.9°C, which can be rounded to 39°C. 3. A body temperature of 39°C is considered to indicate a fever. Normal body temperature typically ranges from 36.1°C to 37.2°C, so a temperature of 39°C is higher than the normal range and suggests a fever. 4. Options A and B are incorrect as they do not reflect the conversion of 102°F to °C
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