ATI TEAS 7
physics
1. What is the relationship between mass and weight on Earth's surface?
- A. Mass and weight are equal
- B. Mass is greater than weight
- C. Weight is greater than mass
- D. Mass and weight are not related
Correct answer: a
Rationale: On Earth's surface, mass and weight are directly proportional but not equal, as weight is the force due to gravity acting on an object's mass.
2. Which factor affects the kinetic energy of an object the most?
- A. The object's mass
- B. The object's velocity
- C. The object's displacement
- D. The object's potential energy
Correct answer:
Rationale: Kinetic energy is directly proportional to the square of an object's velocity.
3. Balance the following redox reaction in acidic solution: I⻠(aq) + Cr₂O₇²⻠(aq) -> I₂ (aq) + Cr³⺠(aq). Identify the oxidizing agent and reducing agent.
- A. I⻠is oxidized, Cr₂O₇²⻠is reduced
- B. I⻠is reduced, Cr₂O₇²⻠is oxidized.
- C. Both I⻠and Cr₂O₇²⻠are oxidized.
- D. Both I⻠and Cr₂O₇²⻠are reduced.
Correct answer: A
Rationale: . I⻠loses an electron (oxidation), Cr₂O₇²⻠gains electrons (reduction).
4. In the reaction 2H2 + O2 → 2H2O, how many moles of oxygen are required to react completely with 4 moles of hydrogen?
- A. 1
- B. 2
- C. 3
- D. 4
Correct answer: 2
Rationale: The balanced equation indicates a 1:1 ratio between H2 and O2, so 4 moles of H2 require 4 moles of O2, and 2 moles of H2 require 2 moles of O2.
5. Which sentence uses the present perfect continuous tense correctly?
- A. I have been working on this project since morning.
- B. She has finished the book already.
- C. They will be leaving for vacation tomorrow.
- D. He had been living in the city for ten years.
Correct answer: A
Rationale: Option A emphasizes the ongoing action (working) that started in the past and continues to the present.
6. Distinguish between the digestive and respiratory systems.
- A. Mouth
- B. Stomach
- C. Small intestine
- D. Lungs
Correct answer: D
Rationale: Rationale: - The mouth, stomach, and small intestine are all parts of the digestive system, responsible for breaking down food into nutrients that can be absorbed by the body. - The lungs are part of the respiratory system, responsible for the exchange of oxygen and carbon dioxide between the body and the environment through breathing. - While the digestive system processes food for energy and nutrients, the respiratory system is focused on the exchange of gases necessary for cellular respiration.
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