ATI TEAS 7
English Grammar
1. What is the most effective way to ensure clarity and conciseness in your writing?
- A. Using complex sentence structures and passive voice.
- B. Avoiding unnecessary repetition and redundant words.
- C. Replacing simple words with more sophisticated synonyms.
- D. Adding flowery introductions and lengthy conclusions.
Correct answer: B
Rationale: Concise writing eliminates unnecessary words and uses active voice to express ideas directly and clearly.
2. Which of the following describes a scalar quantity?
- A. Velocity
- B. Acceleration
- C. Force
- D. Speed
Correct answer: d
Rationale: Speed is a scalar quantity as it only indicates how fast an object is moving without any directional information.
3. What is the name of the structure that packages DNA in eukaryotic cells?
- A. Nucleosome
- B. Chromatin
- C. Histone
- D. Centromere
Correct answer: A
Rationale: Rationale: - A nucleosome is the basic structural unit of DNA packaging in eukaryotic cells. It consists of DNA wrapped around a core of histone proteins. - Chromatin refers to the complex of DNA and proteins found in the nucleus of a eukaryotic cell, including nucleosomes. - Histones are the proteins around which DNA is wrapped to form nucleosomes. - Centromere is a region of a chromosome where the two sister chromatids are joined and to which spindle fibers attach during cell division.
4. Which energy transformation occurs when a guitar string vibrates to produce sound?
- A. Mechanical energy to thermal energy
- B. Kinetic energy to potential energy
- C. Electrical energy to sound energy
- D. Potential energy to kinetic energy
Correct answer: c
Rationale: The electrical energy in the guitar's amplifier is converted into sound energy when the string vibrates.
5. Which property of a substance describes how much matter is packed into a given space?
- A. Mass
- B. Volume
- C. Weight
- D. Density
Correct answer: D
Rationale: Density is the property of a substance that describes how much matter is packed into a given space. It is calculated by dividing the mass of the substance by its volume. Mass refers to the amount of matter in an object, volume is the amount of space an object occupies, and weight is the force of gravity acting on an object's mass. Density specifically relates to how tightly packed the particles of a substance are.
6. A lampshade is shaped like a frustum of a cone, with base diameters of 20cm and 10cm and a height of 15cm. What is its volume?
- A. 625 cu cm
- B. 1250 cu cm
- C. 1875 cu cm
- D. 2500 cu cm
Correct answer: C
Rationale: This requires dividing the frustum into two cones and calculating their individual volumes before subtracting them. The formula for a cone frustum involves the radii of both bases and the height.
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