which state of matter has particles that are highly organized in a fixed pattern and vibrate in place
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ATI TEAS 7

ATI TEAS 7 science review

1. Which state of matter has particles that are highly organized in a fixed pattern and vibrate in place?

Correct answer: A

Rationale: The correct answer is 'Solid.' Solids have particles that are tightly packed together in a fixed pattern, allowing them to vibrate in place. This highly organized structure gives solids a definite shape and volume. In contrast, liquids have particles that are close together but can move past each other, enabling them to flow and take the shape of their container. Gases have particles that are far apart and move freely in all directions, filling the entire space available to them. Plasmas, on the other hand, have highly energized particles that do not have a fixed pattern and are not confined by a definite volume or shape.

2. What is the name of the structure that packages DNA in eukaryotic cells?

Correct answer: A

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.

3. Which property of a substance refers to its ability to be stretched into thin wires without breaking?

Correct answer: C

Rationale: Ductility is the property of a substance that allows it to be stretched into thin wires without breaking. This property is distinct from the other options provided. Conductivity refers to the ability to conduct electricity or heat, viscosity refers to a liquid's resistance to flow, and malleability refers to the ability of a substance to be hammered or rolled into thin sheets. Therefore, the correct answer is 'Ductility.'

4. Which of the following are properties of a liquid?

Correct answer: D

Rationale: The correct answer is D: 'Takes shape of container.' Liquids exhibit the property of taking the shape of their container while maintaining a fixed volume. This is due to the ability of liquid particles to flow and move freely within the container. Choices A, B, and C are incorrect. Choice A, 'High atomic attraction,' is not a general property of liquids as the level of attraction between liquid particles can vary. Choice B, 'Fixed volume,' is partially correct as liquids do have a fixed volume, but they do not have a fixed shape. Choice C, 'Low pressure,' is not a defining property of liquids.

5. What type of force enables a car to take a sharp turn while moving in a circular path?

Correct answer: A

Rationale: Centripetal force is the force that allows an object to move in a circular path. When a car takes a sharp turn, centripetal force acts towards the center of the circle, enabling the car to stay in the curved path. Tension force is transmitted through a string, rope, cable, or wire when pulled tight, and it is not directly related to a car's turning motion. Frictional force opposes motion and is not the primary force responsible for a car's ability to take a sharp turn. Gravitational force is the attraction between masses and does not directly influence a car's ability to maneuver in a curved path.

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