Category: Physics

Should I put my water heater on a timer? A water heater timer can save you money on both your electricity and water bills. For example, if your utility company charges more in the morning or the evening, a timer for your water heater will help reduce the cost per kilowatt of usage. Should I […]

Why does a swing stop swinging? When the swing is raised and released, it will move freely back and forth due to the force of gravity on it. The swing continues moving back and forth without any extra outside help until friction (between the air and the swing and between the chains and the attachment […]

Is a shovel a first class lever? No, the shovel is a third-class lever. In such systems, the effort is positioned between the fulcrum and the load. Which class lever is a nutcracker? class 2 Why is a shovel a first class lever? The shovel becomes a lever when you move to pick the dirt […]

What are the two major types of animals? The Animal Kingdom About 75% of all species on Earth are animals. Animals are then broken down into two types: vertebrates and invertebrates. Animals with a backbone are vertebrates. What are the 11 Phylums? A Brief List Of 21 Animal Phyla Phylum Porifera (Sponges) Phylum Coelenterata (Cnidaria) […]

Does tension increase as length increases? Researchers have found that both of these structures can contribute to passive tension during muscle fiber elongation. As the muscle fiber (and therefore each sarcomere within it) is tested at longer lengths, the available sites for myosin to bind to actin are increased, and the amount of force increases. […]

Are CRTs dangerous? Color CRTs may contain mercury or other potentially toxic materials. If the CRT is broken or cracked, these materials may be released and pose a risk of toxic exposure. A charged CRT carries high voltage—about 27,000 volts in a color unit. Can a CRT TV kill you? You will see the little […]

What the Lions eat? What do lions eat? Lions usually hunt and eat medium-sized to large hoofed animals like wildebeests, zebras, and antelopes. They occasionally also prey on larger animals, especially sick or injured ones, and eat found meat such as carrion. Which dogs can kill lions? What Dog Can Take Down A Lion? Rottweiler. […]

What is the best way to identify a igneous rock? Cooling of the magma can occur beneath the surface (plutonic) or on the surface (volcanic). Igneous rocks can be identified by the determination of the composition and texture of the rock. Once these two characteristics have been identified, the Igneous Rock Identification chart is used […]

What does it mean when the moon is really bright? The moon only seems bright in the night sky because it is so close to the earth and because the trees, houses, and fields around you are so dark at night. In fact, the moon is one of the least reflective objects in the solar […]

How do you reduce 5v to 1.2 V? If the current is constant, then use a series resistor of value 3.8/I ohms where I is the current. If the current is variable, then you can use a couple of low value very high wattage resistors in the ratio of 3.8:1.2 connected in series across the […]