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. The constituents of an atomic nucleus consist of:
- A. Electrons and protons only
- B. Protons and neutrons only
- C. Electrons, protons, and neutrons
- D. None of the above
Correct answer: B
Rationale: The correct answer is B: "Protons and neutrons only." This is because the atomic nucleus is composed of protons, which carry a positive charge, and neutrons, which are neutral. Electrons are found outside the nucleus in electron shells. Protons and neutrons are collectively known as nucleons and are responsible for the mass of the atom. Electrons are much lighter and are involved in chemical reactions and bonding. Therefore, the constituents of an atomic nucleus are specifically protons and neutrons, making option B the correct choice.
3. Identify the conjunction in the following sentence: He went to the store, but they were already closed.
- A. went
- B. to
- C. but
- D. they
Correct answer: C
Rationale: Conjunctions connect words, phrases, or clauses. "But" joins two contrasting ideas in the sentence.
4. What is the breakdown product of ATP (adenosine triphosphate) that provides energy for muscle contraction?
- A. Glucose
- B. Creatine phosphate
- C. ADP (adenosine diphosphate)
- D. Lactic acid
Correct answer: C
Rationale: The correct answer is C: ADP (adenosine diphosphate). During muscle contraction, ATP is broken down into ADP and inorganic phosphate, releasing energy that fuels the muscle contraction process. This energy release allows the muscle fibers to contract and perform work. Glucose is a source of energy that is broken down through cellular respiration to produce ATP but is not the direct breakdown product of ATP itself. Creatine phosphate is another energy storage molecule in muscles but is not the breakdown product of ATP. Lactic acid is produced during anaerobic respiration when there is a lack of oxygen, and it is not the primary energy source for muscle contraction. Therefore, ADP is the correct breakdown product of ATP that provides energy for muscle contraction.
5. Julius plans to revisit the organizational chart of the department. He plans to create a new
- A. Box
- B. Solid line
- C. Broken line
- D. Dotted line
Correct answer: B
Rationale: The correct answer is B: 'Solid line.' In organizational charts, solid lines typically represent formal reporting relationships, indicating direct authority and responsibility between positions. Creating a new solid line on the chart would signify a new formal reporting relationship within the department. This can be important for clarifying roles, communication channels, and decision-making processes. Boxes represent positions or roles in the organizational structure, while broken lines and dotted lines are typically used for informal relationships or advisory roles, rather than formal reporting relationships.
6. A news article claims a scientist has discovered a single, universal cure for all allergies. This claim seems:
- A. Entirely plausible and should be immediately accepted.
- B. Unlikely and warrants further investigation and verification.
- C. Impossible because allergies have diverse causes.
- D. Irrelevant as long as it can help some people alleviate suffering.
Correct answer: B
Rationale: Science rarely offers universal solutions for complex biological phenomena. Extraordinary claims require extraordinary evidence and independent verification.
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