Category: Physics

What type circuit connection should a light bulb be connected to maintain maximum brightness? Answer. Placing cells in series increases the voltage in the circuit by 1.5 V for each cell. Increasing the voltage increases the brightness of the bulb. When a bulb in a series circuit is unscrewed all bulbs in the circuit go […]

Which foods are high in enzymes? Foods that contain natural digestive enzymes include pineapples, papayas, mangoes, honey, bananas, avocados, kefir, sauerkraut, kimchi, miso, kiwifruit and ginger. Adding any of these foods to your diet may help promote digestion and better gut health. Can digestive enzymes be harmful? Digestive enzyme supplements also could interact with antacids […]

What month do we get more daylight? March Why is there less sun in the winter? During winter, the Northern Hemisphere leans away from the sun, there are fewer daylight hours, and the sun hits us at an angle; this makes it appear lower in the sky. There is less heating because the angled sun’s […]

What is the most common damage from car accidents? A soft tissue injury is damage to the body’s connective tissue, which means muscles, ligaments and tendons. This is the most common type of injury resulting from a car accident. Soft tissue injuries can take many forms. A “whiplash” type injury to the neck and upper […]

What 3 categories do biological rhythms fall into? There are three types of biological rhythms: Circadian rhythms: biological cycles that occur about every twenty-four hours. Sleep follows a circadian rhythm. Infradian rhythms: biological cycles that take longer than twenty-four hours. Ultradian rhythms: biological cycles that occur more than once a day. What is an example […]

What are the behavioral adaptations of a giraffe? A behavioral adaptation giraffes make when they drink water is to gulp it. Gulping is drinking a lot of liquid quickly without choking. Giraffes gulp as much as 10 gallons of water in a few minutes. They have also adapted the ability to go a long time […]

Is it possible for a heat engine to operate without rejecting any waste heat to a low temperature reservoir explain? It is not possible for a engine to operate without rejecting any waste heat to a low temperature reservior. It violates the second law of thermodynamics, the operation of a heat engine a low temperature […]

What is the evidence that light is a wave? In 1801 a physicist in England, Thomas Young, performed an experiment that showed that light behaves as a wave. He passed a beam of light through two thin, parallel slits. The bright and dark bands demonstrated that the slits were causing light waves to interfere with […]

How do you increase surface area? The rate of a chemical reaction can be raised by increasing the surface area of a solid reactant. This is done by cutting the substance into small pieces, or by grinding it into a powder. How can you increase the surface area of water? Surface tension is the energy […]

Does higher pressure mean more flow? Flow rate is the effect. Higher pressure causes increased flow rate. If the flow rate increases, it is caused by increased pressure. What is the relation between speed and flow rate? Flow rate and velocity are related by \(Q=A\overline{v}\\\) where A is the cross-sectional area of the flow and\(\overline{v}\\\) […]