Problem: Given the question: Jordan and Alejandro are drivers currently in an intense car race. Some dust blows into Jordan's car, causing him to sneeze and take his foot off of the gas pedal. At the same time, Alejandro gets a burst of adrenaline and presses down very hard on the gas pedal in his car. Given the paragraph above, please answer correctly the following question: Who will provide their car with more gas? Hint: A car's gas pedal, like the one in Figure below , is sometimes called the accelerator. That's because it controls the acceleration of the car. Pressing down on the gas pedal gives the car more gas and causes the car to speed up. Letting up on the gas pedal gives the car less gas and causes the car to slow down. Whenever an object speeds up, slows down, or changes direction, it accelerates. Acceleration is a measure of the change in velocity of a moving object. Acceleration occurs whenever an object is acted upon by an unbalanced force.
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The answer is:
Alejandro

Problem: Given the question: Rob is studying medicine in a prestigious university. Today, his professor is teaching about blood glucose levels. He gave example of two patients, patient A and patient B. Patient A had high blood glucose level, but patient B had low blood glucose level. Rob was amazed to find how body keeps its balance. Given the paragraph above, please answer correctly the following question: Which patient would convert glycogen to glucose, patient A or patient B? Hint: Another example of negative feedback has to do with blood glucose levels. When glucose (sugar) levels in the blood are too high, the pancreas secretes insulin to stimulate the absorption of glucose and the conversion of glucose into glycogen, which is stored in the liver. As blood glucose levels decrease, less insulin is produced. When glucose levels are too low, another hormone called glucagon is produced, which causes the liver to convert glycogen back to glucose.
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The answer is:
patient B

Problem: Given the question: Adams needs to roll a piano into his new house. The piano is very heavy and unfortunately he isn't strong enough to lift it up his front steps. A friend of his suggests he get a ramp since it will support part of the weight allowing him to push it into his house much easier. Adam gets the ramp and successfully pushes the piano in to his new house. Given the paragraph above, please answer correctly the following question: Will Adam have an easier time lifting a heavy refrigerator into his new house or pushing it up a ramp? Hint: The sloping surface of the inclined plane supports part of the weight of the object as it moves up the slope. As a result, it takes less force to move the object uphill. The trade-off is that the object must be moved over a greater distance than if it were moved straight up to the higher elevation. On the other hand, the output force is greater than the input force because it is applied over a shorter distance. Like other simple machines, the ideal mechanical advantage of an inclined plane is given by
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The answer is:
pushing