what type of force opposes the motion of an object moving through a fluid liquid or gas
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ATI TEAS 7

TEAS 7 science quizlet

1. What type of force opposes the motion of an object moving through a fluid (liquid or gas)?

Correct answer: C

Rationale: When an object moves through a fluid, it experiences resistance due to the viscosity of the fluid. This resistance is known as the viscous force, which opposes the motion of the object. Gravitational force is the force of attraction between two objects with mass, tension force is the force transmitted through a string, and magnetic force is the force exerted by magnets. In the context of an object moving through a fluid, the force opposing its motion is the viscous force because it resists the relative motion of the object through the fluid.

2. Which of the following structures in the male reproductive system produces the fluid that carries sperm?

Correct answer: D

Rationale: The seminal vesicles in the male reproductive system are responsible for producing the fluid that carries sperm. These glands contribute a significant portion of the semen's volume, providing nutrients and protection for the sperm, which helps in their motility and survival. The testes are responsible for producing sperm cells, not the fluid that carries them. The scrotum is the external sac that holds the testes and helps regulate their temperature but does not produce the fluid. The prostate gland produces a milky fluid that helps nourish and protect sperm but is not the main structure responsible for producing the fluid that carries sperm.

3. Which type of nuclear reaction releases a large amount of energy in a short time?

Correct answer: C

Rationale: Nuclear fusion releases a large amount of energy in a short time by combining two light atomic nuclei to form a heavier nucleus. This process is the energy source of the sun and hydrogen bombs. Radioactivity involves the spontaneous emission of particles or energy from an unstable atomic nucleus, while nuclear fission is the splitting of a heavy atomic nucleus into two or more lighter nuclei, also releasing energy. While all the options are types of nuclear reactions, nuclear fusion is specifically known for releasing a large amount of energy rapidly, making it the correct choice in this context. Choices A and B are incorrect as they do not specifically describe the process of releasing a large amount of energy in a short time. Choice D is incorrect because not all the options listed release a large amount of energy in a short time, making it an inaccurate answer.

4. Which type of bond is exemplified by KCl?

Correct answer: A

Rationale: KCl exemplifies an ionic bond. In an ionic bond, electrons are transferred between atoms, resulting in the formation of ions. In the case of KCl, potassium (K) donates an electron to chlorine (Cl), leading to the creation of K+ and Cl- ions, which are held together by electrostatic forces of attraction. Choice B, covalent bond, is incorrect because covalent bonds involve the sharing of electrons between atoms, not the transfer of electrons as seen in KCl. Choice C, hydrogen bond, is incorrect as hydrogen bonds are a type of intermolecular force, not a bond formed by the transfer or sharing of electrons between atoms. Choice D, polar covalent bond, is also incorrect because although it involves the sharing of electrons with an unequal distribution of charge, KCl is a clear example of ionic bonding where electrons are completely transferred.

5. Which type of cell has a nucleus but lacks membrane-bound organelles?

Correct answer: B

Rationale: The correct answer is B: Prokaryotic cell. Prokaryotic cells are characterized by having a nucleus that is not enclosed within a membrane (nuclear envelope) and lacking membrane-bound organelles such as mitochondria, endoplasmic reticulum, and Golgi apparatus. Plant, animal, and fungal cells are eukaryotic cells, which have a true nucleus enclosed within a nuclear envelope and contain membrane-bound organelles. Therefore, options A, C, and D are incorrect as they all represent eukaryotic cells that possess membrane-bound organelles.

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