SAT College

1. how can you tell that a material is a conductor?
2. why is copper widely used for electrical materials?
3. what affects the conductivity of materials?
4. why do we use metal kitchenware in cooking?
5. why other materials are covered with rubber?

Answers

Answer 1
A material is a conductor if it allows electric current to flow through it easily. One way to tell if a material is a conductor is by testing its electrical conductivity using a conductivity meter or by observing if it conducts electricity when connected to a circuit.

Copper is widely used for electrical materials because it is an excellent conductor of electricity. It has low resistance and can carry a high amount of electrical current without overheating or losing too much energy. Copper is also abundant, easy to work with, and has good durability and corrosion resistance.

The conductivity of materials can be affected by various factors such as temperature, impurities, crystal structure, and mechanical stress. For instance, metals tend to have higher conductivity at lower temperatures, while impurities or defects can decrease conductivity. A material's crystal structure and orientation can also affect its conductivity.

Metal kitchenware is used in cooking because metals are good conductors of heat, which allows for even heating and cooking. Metals also have good durability and can withstand high temperatures, making them suitable for cooking in ovens or on stovetops.

Other materials are covered with rubber to provide insulation and protect against electrical shock. Rubber is an insulator, which means it has high resistance to electrical current and can prevent electricity from flowing through it. This property makes rubber ideal for covering wires, cables, and other electrical components to prevent accidental contact with live wires. Rubber can also provide cushioning, sealing, and protection against heat, moisture, and other environmental factors.

Related Questions

Highlight the spelling words that contain only one suffix.
completely carefully loosely ideally especially finally
additionally certainly barely scarely directly

Answers

The suffix is added to a proper noun.

From the given context:

CompletelyCarefullyLooselyideallyespeciallyfinallyadditionallycertainlybarelyscarcelydirectly

Here the highlighted words are known as suffix. The English grammar is amorpheme added at the end of a derivative. The best examples for suffix are able, al, er, est, ful, ible ,fy, ing, ation etc. For example hopeless, heroic, iconic, creatable.

Suffix can also be used in names such as JR, DR, Mrs., MS.

The suffix is followed by the last name of the person. It acts as the secondary piece of the given information. We can add a group of letters to the end of any sentence or words.

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The general rules for suffix is not followed in the question they are:

The consonants must be double. The vowels should sound short and finally the suffix must start with base words has a silent "e".

In a football match for every 2 goals that Georgetown score Hatville score 5 times. 14 goals are scored in total. How many goals did each team score?

Answers

Answer:

Georgetown scored 4 and Hatville scored 10

Explanation:

So we can make an equation 14=2x+5x=

14=7x=

x=2

2x=4

and 5x=10

which means that Georgetown scored 4 and Hatville scored 10

The tough boys sneered, -Who wants a cop for a friend? Yah. Bet your mamma pays him to take baby home. Yah. 'Fraid we'll beat you up. We don't beat up babies. Bet she pays him a dollar a week. The idea had its unspeakable possibilities. His mother was
often unduly solicitous. He did not dare approach her on the subject, but he did sound L out the sergeant. Which word or phrase best helps the reader understand the meaning of "unduly solicitous?"
A "Bet your mamma pays him to take baby home."
B "We don't beat up babies."
C "The idea had unspeakable possibilities."
D "...but he did sound out the sergeant."

Answers

Where the above context clue is provided, the answer is A: "Bet your mamma pays him to take baby home."  

What is the explanation for the above response?

This phrase implies that the boy's mother is overly concerned and protective of him, and is willing to pay someone to ensure his safety. The phrase "unduly solicitous" means excessively anxious or overprotective, which is supported by the context of this statement.

A context clue is a word or phrase in a sentence or paragraph that helps to reveal the meaning of an unfamiliar word or concept through the surrounding text.

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Think about what you learned about the Supreme Court trial of Clarence Gideon. Using the drop-down menus, put
the events of the case in order.
The Supreme Court heard Gideon's case and decided in his favor.
Gideon appealed the state decision to the Supreme Court.
States became required to provide counsel to all defendants.
Gideon was accused of a crime and brought to trial.
Gideon was denied counsel at the state court.

Answers

Gideon was accused of a crime and brought to trial.Gideon was denied counsel at the state court.Gideon appealed the state decision to the Supreme Court.The Supreme Court heard Gideon's case and decided in his favor.States became required to provide counsel to all defendants.
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