ATI TEAS 7
physics
1. Describe the concept of inertia in terms of Newton's first law.
- A. Objects in motion tend to remain in motion unless acted upon by an external force
- B. Objects at rest tend to remain at rest unless acted upon by an external force
- C. An object's resistance to a change in its state of motion
- D. The force required to lift an object
Correct answer: c
Rationale: Inertia refers to an object's tendency to maintain its current state of motion (either at rest or in motion) unless acted upon by an external force.
2. Which element is used in jewelry due to its malleability and resistance to tarnish?
- A. Iron
- B. Copper
- C. Gold
- D. Silver
Correct answer: C
Rationale: Gold's properties make it ideal for crafting durable and aesthetically pleasing jewelry
3. A guitar string vibrates at a fundamental frequency of 440 Hz. What is the frequency of the second harmonic (first overtone)?
- A. 220 Hz
- B. 440 Hz
- C. 880 Hz
- D. 1760 Hz
Correct answer: C
Rationale: Harmonics have frequencies that are multiples of the fundamental frequency. The second harmonic has a frequency twice the fundamental, so it's 440 Hz * 2 = 880 Hz.
4. Identify the reflexive pronoun in the sentence: "She prepared herself for the presentation."
- A. herself
- B. she
- C. presentation
- D. for
Correct answer: A
Rationale: "Herself" refers back to the subject "she," making it a reflexive pronoun.
5. Which of the following best describes a balanced force acting on an object?
- A. The object remains at rest
- B. The object moves with constant velocity
- C. The object accelerates
- D. The object's mass changes
Correct answer: b
Rationale: When balanced forces act on an object, the object remains in a state of constant velocity (including at rest).
6. What are chromosomes made of?
- A. DNA and RNA
- B. DNA and proteins
- C. Proteins and carbohydrates
- D. DNA only
Correct answer: B
Rationale: Rationale: Chromosomes are structures found in the nucleus of cells that contain genetic material. They are made up of DNA (deoxyribonucleic acid), which carries the genetic information, and proteins that help in the organization and packaging of the DNA. While RNA is involved in various cellular processes, it is not a major component of chromosomes. Carbohydrates are not a significant component of chromosomes. Therefore, the most accurate answer is B) DNA and proteins.
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