Problem: It is not enough to describe some objects by their location. We may also need to know its direction. For example, a wind blows a storm over your school. Where is that storm coming from? Where is it going? How can we describe a direction? The most common way is by using a compass. A compass is a device with a floating needle (Figure 2.1). The needle is a small magnet. The needle aligns itself with the Earth's magnetic field. The compass needle always points to magnetic north. If you have a compass and you find north. You can then know any other direction. See the directions, such as east, south, west, etc., on a compass rose. The Earth has two poles. It has a magnetic north pole. It also has a geographic north pole. These two poles are close to each other but not the exact same place.

Question: "How does the compass work?"

Answer: "The magnetic north pole will pull the magnet needle causing it to point north."
Answer: yes

Problem: "The impact of her interest and work on the provision of legal services in the state of California is immeasurable," said Patricia Philips, senior of-counsel for Los Angeles' Morrison & Foerster. "Its value is felt every day by someone who would otherwise be floundering around in the legal system yet dealing with very serious problems." Zelon's public-interest work has not gone unnoticed. Several organizations that share her commitment to public service - including the National Legal Aid & Defender Association and the State Bar of California - have honored her. Two years ago, Zelon received the Laurie D. Zelon Pro Bono Award, which had been named for her one year earlier by the Law Firm Pro Bono Project, which she'd helped found. "I didn't find out until I was standing in the great hall of the Supreme Court, surrounded by 300 people who were there, that the award had been named for me and was thereafter going to be given in my name. It's very hard to believe, for anyone who knows me well, but I was actually speechless for a period," Zelon said. Zelon faced one of the greatest challenges of her legal career, she said, when her appointment to the bench forced her to switch gears from civil litigation to criminal law. "It was a steep learning curve for me," she said. "It's a whole different set of processes. The rules are different. The case law is a whole body unto itself." Attorneys praise Zelon for her thorough understanding of the law. "She's extremely well-versed in the law," Leon said. "She's very thorough in her research," Wong said. Of course, not all attorneys concur with every decision Zelon makes in court. Some city attorneys disagree with her interpretation of evidentiary statutes when Zelon puts limits on their use of hearsay testimony. But lawyers who have appeared before her say that they appreciate her intelligent interpretation of the law.

Question: "How did Patricia Philips' work and interest make an impact on the provision of legal services in the state of California?"

Answer: "Is immeasurable"
Answer: yes

Problem: Sometimes a full Moon moves through Earths shadow. This is a lunar eclipse . During a total lunar eclipse, the Moon travels completely in Earths umbra. During a partial lunar eclipse, only a portion of the Moon enters Earths umbra. When the Moon passes through Earths penumbra, it is a penumbral eclipse. Since Earths shadow is large, a lunar eclipse lasts for hours. Anyone with a view of the Moon can see a lunar eclipse. So unlike a solar eclipse, it doesnt get dark on Earth. Instead it gets dark on the Moon. Partial lunar eclipses occur at least twice a year, but total lunar eclipses are less common. The Moon glows with a dull red coloring during a total lunar eclipse.

Question: "What is the difference between a total lunar eclipse and a partial lunar eclipse?"

Answer: "Total- the moon travels completely in Earth's umbra, partial- only a portion of the moon enters the Earth's umbra"
Answer:
yes