Njsla Prep English

Why does the author most likely place the information in paragraphs 1–2 at the beginning of “Energy Story”?

• to encourage the reader to learn how electronic devices are made

• to show the reader how different machines can improve our lives

• to draw the reader in by showing how electricity affects everyone

• to teach the reader how to use electricity in different settings

Which detail from “Energy Story” best supports the answer in Part A?

• “. . . walk through your school, house or apartment . . .” (paragraph 2)

• “. . . how many things we use each and every day that depend on electricity.” (paragraph 2)

• “. . . in the same way the moon spins around the earth.” (paragraph 5)

• “. . . each person would have a bucket of water to pour from one bucket to another.” (paragraph 12)

Which sentence best states the central idea of paragraphs 21–22 in “Energy Story”?

• Materials that are insulators and conductors have a high resistance to electricity

• It is more difficult for electricity to pass through insulators than conductors.

• Insulators and conductors are able to generate a high amount of electricity.

• Electrons move through rubber easier than they move through metal.

Which sentence from “Energy Story” best supports the answer in Part A?

• “Electricity is conducted through some things better than others.”

• “Its resistance measures how well something conducts electricity.”

• “Some things hold their electrons very tightly.”

• “Other materials have some loosely held electrons, which move through them very easily.”

Which phrase is closest in meaning to the word deliberately as it is used in paragraph 3 of “Short Circuit”?

• for the most part

• by general agreement

• with short notice

• with careful consideration

Which detail from “Short Circuit” provides the best clue to the meaning of the word deliberately?

• “good conductor”

• “not as good”

• “chosen to”

• “very low”

Which sentence best states a central idea of “Short Circuit”?

• Appliances can be destroyed by a heavy flow of electrons.

• The flow of electrons follows a path of least resistance.

• Fuses are an important means to keep homes safe from electrical hazards.

• Circuit breakers are a tool to control the flow of electricity in homes.

Which detail from the article provides the best example of the central idea in Part A?

• “In a normal electric circuit, an electric current powers an appliance, such as a refrigerator or TV.”

• “Every such appliance has a certain amount of resistance to the current flow, which keeps the current from reaching very large values.”

• “Although houses today often contain circuit breakers rather than fuses, fuses are still around.”

• “. . . the wire in the fuse heats up quickly and melts, breaking the circuit and preventing a fire from breaking out.”

Which step of the experiment is repeated multiple times in “Short Circuit”?

• Use an alligator clip to attach a copper wire to a battery terminal.

• Attach one end of an iron wire to the other battery terminal.

• Use a second alligator clip to attach the other end of the copper wire to the iron wire.

• Shorten the distance between the second alligator clip and the battery.

A result occurs when the step is repeated in the experiment. Which phrase from “Short Circuit” shows the result of the repeated step that is the answer to Part A?

• “. . . deliberately chosen to have very low resistance.”

• “. . . voltage of the battery pushes electrons through the circuit . . .”

• “. . . more current flows . . .”

• “. . . which keeps the current from reaching very large values.”