which element is a good conductor of electricity but is not a metal
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ATI TEAS 7

TEAS Test 7 science

1. Which element is a good conductor of electricity but is not a metal?

Correct answer: C

Rationale: The correct answer is graphite. Graphite is a non-metal that is a good conductor of electricity due to its unique electronic structure. While metals are typically known for their conductivity, graphite is an exception to this rule. Copper (choice A), silver (choice B), and gold (choice D) are all metals and are known for their excellent conductivity. Therefore, they do not fit the criteria of the question, which specifically asks for an element that is a good conductor of electricity but is not a metal.

2. What mnemonic helps in recalling metric conversions?

Correct answer: A

Rationale: The mnemonic 'King Hector Died By Drinking Chocolate Milk' aids in recalling metric prefixes in order: kilo-, hecto-, deca-, base (meter, liter, gram), deci-, centi-, milli-. Choice B does not provide a relevant mnemonic for metric conversions. Choices C and D do not offer a helpful phrase for remembering metric prefixes, making them incorrect.

3. What determines the magnitude of the frictional force acting on a book sliding across a table?

Correct answer: C

Rationale: The magnitude of the frictional force acting on the book sliding across a table is determined by both the mass of the book and the normal force from the table. Frictional force is proportional to the normal force (which is influenced by the weight of the book, i.e., its mass) and is affected by the surfaces in contact and other friction-related factors. Therefore, both the mass of the book and the normal force from the table are essential in determining the frictional force experienced by the book during its sliding motion. Choices A, B, and D are incorrect because friction is a result of the interaction between the surfaces and is influenced by both the mass of the object and the normal force acting on it.

4. Calculate the sum of the numbers from 1 to 6:

Correct answer: B

Rationale: To find the sum of numbers from 1 to 6, we add them together: 1 + 2 + 3 + 4 + 5 + 6 = 21. Therefore, the correct answer is 21. Choice A (30) is incorrect because it is not the sum of the numbers 1 to 6. Choice C (15) is incorrect as it is the sum of numbers 1 to 5. Choice D (13) is incorrect as it is the sum of numbers 1 to 4, not 1 to 6.

5. Which of the following describes the path through which air moves during inhalation?

Correct answer: A

Rationale: The correct path through which air moves during inhalation is from the mouth/nose > pharynx > larynx > trachea > bronchi > bronchioles > alveoli. This sequence accurately represents the typical route air takes as it travels from the external environment into the lungs to facilitate gas exchange in the alveoli. Choice B is incorrect as it reverses the order of bronchioles and alveoli. Choice C is incorrect as it starts with mouth/nose but then incorrectly lists lungs before trachea. Choice D is incorrect as it reverses the entire sequence of the respiratory pathway, starting with alveoli instead of mouth/nose.

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