Category: Physics

Does area affect pressure? You can see that for a given force, if the surface area is smaller, the pressure will be greater. If you use a larger area, you are spreading out the force, and the pressure (or force per unit area) becomes smaller. How can you increase or decrease pressure acting on a […]

How does the environment affect an organism? Changes to living things: Overhunting and overfishing can harm or destroy populations of organisms. Humans can also accidentally introduce new organisms into ecosystems. These organisms can use up food, space, and water that other organisms need. These animals or plants are called invasive species. Why do living things […]

How does the air parcel get energy? Air molecules in the parcel (or the balloon) have to use their kinetic energy to expand the parcel/balloon kinetic energy to expand the parcel/balloon. The lost energy is used to increase the potential energy of air molecular. What is parcel temperature? A parcel has an original temperature and […]

What happen to the current as the resistance increases? Answer: the current in a given circuit is inversely proportional to the resistance in the circuit, which means that the current will decrease if the resistance is increased. Is length directly proportional to resistance? The resistance of a wire is directly proportional to its length and […]

Why does a paddle with holes hurt more? The paddle might have holes in it,23 allowing it to move faster and therefore hurt more. One student noted, “It has holes in it, so the air can just woosh through.”24 Part or all of the paddle can be covered with duct tape to prevent the wood […]

Why is sound louder in cold air? In terms of temperature, sound waves move faster in warm air and slower in cold air. So as sound moves through the atmosphere, some parts of the wave will be moving faster than the rest. This means the sound would be louder and you could hear the traffic […]

Do seat belts retract after an accident? In a collision, the gas charge ignites, locking the seatbelt in place. Regardless of whether it’s the seatbelt retractor, or the buckle pre-tensioner, once activated, they will not work again. How much force is needed to deploy an airbag? Typically, a front airbag will deploy for unbelted occupants […]

Is there a cure for loss of taste? Although you can’t reverse age-related loss of taste and smell, some causes of impaired taste and smell are treatable. For example, your doctor might adjust your medications if they’re contributing to the problem. Many nasal and sinus conditions and dental problems can be treated as well. What […]

Why are squall lines dangerous? A squall line is a narrow band of intense thunderstorms. They can have destructive winds and tornadoes. Blinding rain and dangerous lightning also accompany squall lines. Is a derecho a squall? A derecho (pronounced similar to “deh-REY-cho” in English, or pronounced phonetically as ” “) is a widespread, long-lived wind […]

What feature of sound is measured in decibels quizlet? Intensity level is a logarithmic measure of the sound intensity. Sound intensity is measured in W/m2 (watts per square meter) and sound intensity level is measured in decibels (dB). What feature of sound is measured in decibels? Loudness What is the threshold of hearing quizlet? Each […]