Problem: Magnets are able to place a force on certain materials. This force is called a magnetic force. The force a magnet exerts is a little different from the forces you may normally think about. You exert a force on a book when you lift it. You also exert a force on the pedals of your bicycle. In both those cases, those forces cause a change. The change you see in both these cases is called motion. Magnets, too, can produce change. They can produce motion just like you do. Unlike you, magnets do not have to touch something to exert a force. A magnetic force is exerted over a distance. Thats right, a magnet can push or pull certain items without ever touching them. Thats how the maglev train works. Do you know another type of force that does not require objects to touch? These forces are known as non-contact forces. Another type of non-contact force you may be familiar with is gravity. Gravity too can cause changes in motion. Gravity holds our moon in orbit without touching it.

Question: "The force magnets put on certain materials is called what?"

Answer: "Magnets do not put force on certain materials"

OPTIONS:
- no
- yes
Answer: no

Question:
Mechanical energy is a combination of the energy of motion or position. This type of energy describes objects that are moving or could move. A moving ball can have energy from motion. An arrow can also have the energy of motion. Both are types of mechanical energy. Can you think of some other examples? Where does the energy of motion come from? It comes from the energy created by position. This energy is stored energy. This means it is not moving yet, but it has the potential to move. How can you store energy? The arrow gains energy from the drawn bow. As the arrow is released, the bow releases its stored energy and puts the arrow into motion. Can you think of some other ways to store energy using position? After reading the above, is "No, they can be still and have potential energy too" the correct answer to the question "Is an object with mechanical energy always moving?"? OPTIONS:
- no
- yes

Answer:
yes

Input: Sound waves are mechanical waves. They can travel only through matter. They cannot travel through empty space. This was demonstrated in the 1600s by a scientist named Robert Boyle. Boyle placed a ticking clock in a sealed glass jar. The clock could be heard ticking through the air and glass of the jar. Then Boyle pumped the air out of the jar. The clock was still running, but the ticking could not be heard. Thats because the sound couldnt travel without air particles to transfer the sound energy. Is there any other place where sound cannot be heard? Here is a hint: is there any other place that does not have air molecules? Thats right, in space sound cannot be transferred. So can astronauts hear each other? Yes, they can, because they are in enclosed space stations or pressurized suits.In both cases, they are surrounded by air molecules. If they left their space ship and did not use their electronics, they would not be able to hear each other. Next time you watch a science fiction movie, think about this factoid. When spaceships are destroyed by hostile alien beings, there would be no sound heard. Sound waves can travel through many kinds of matter.
"How did Robert Boyle prove how sound waves travel?" is "He didn't."?

OPTIONS:
- no
- yes
Output: no

Input: Flowing water causes sediment to move. Flowing water can erode both rocks and soil. You have already learned that materials can dissolve in water. With enough time, even rocks can be dissolved by water. This process happens really slowly. It may take over a million years to dissolve a rock. It doesnt matter how big the rock is. With enough time, flowing water can dissolve it. Moving water also has the ability to move small pieces of rock and soil. How can water move a rock? Doesnt it need energy? Of course, water gets its energy because it is moving. Moving water has kinetic energy. Things that have more energy can do more work. When water stops moving it will have no energy. It will no longer be able to move the rock and soil. When this happens the rock and soil will settle to the bottom of the calm water. Scientists call this process deposition.

Does the response "Flowing water causes stream to boil" correctly answer the question "What does flowing water cause?"?

OPTIONS:
- no
- yes
***
Output: no

Input: The Dutch Take Over: Intent on capturing a piece of the Portuguese trade in pepper and other spices, the Java-based Dutch Ailied with the Malays in 1633 to blockade Melaka. The trade blockade was to last eight years, and ended in a seven-month siege. The Portuguese surrendered in 1641, wracked by malaria and dysentery and denied their usual reinforcements from Goa. By then, the city had become a stagnant backwater. Unlike the Portuguese, the Dutch decided to do business with the Malays of Johor, who controlled the southern half of the peninsula together with Singapore and the neighboring Riau islands. A trade treaty gave the Dutch command of the spice trade but reserved Johor's rights in tin exports from Perak, Selangor, and Klang. Without ever retrieving the supremacy of the old Melaka sultanate, Johor had become the strongest Asian power in the region. For the Dutch, Johor provided a buffer against other Europeans. Meanwhile, fresh blood came in with the migration into the southern interior of hardy Minangkabau farmers from Sumatra, while tough Bugis warriors from the east Indonesian Celebes (Sulawesi) roved the length and breadth of the peninsula. The Minangkabau custom of freely electing their leaders provided the model for rulership elections in modern federal Malaysia. Their confederation of States became today's Negeri Sembilan ("Nine States"), with Seremban as its capital. The name Minangkabau itself means roughly "buffalo horns" and is reflected in the distinctive upward curving roof in museums and government offices built in the traditional Minangkabau style. The Bugis were energetic merchants and great sailors. With the Dutch concentrating once more on Java and the Moluccas in the 18th century, the Bugis took advantage of the vacuum by raiding Perak and Kedah, imposing their chieftains in Selangor and becoming the power behind the throne in Johor. The Bugis in Johor's administration provided much of the spirit in that State's independent stand in the 19th and 20th centuries. Throughout this period, the east coast states enjoyed a relatively tranquil prosperity, Terengganu notably thriving from its textile industry and trading in pepper and gold with the Thais, Cambodians, and Chinese. The British, under the private auspices of the East India Company (EIC), were beginning to poke their noses into North Borneo.
"The Java-based Dutch and the Malays expected their blockade against Melaka to last how long?" is "7 months"?

OPTIONS:
- no
- yes
Output:
no