Category: Physics

Can sound travel underwater? The sound waves don’t move through the air, they move through the water. Sound waves actually travel five times faster in water than in air. Underwater those sound waves don’t vibrate the ossicles bones in your inner ear. When you’re on dry land, sound moves through air and hits your fleshy […]

How fast can a train accelerate? The final factor and one frequently overlooked is the tractive effort required for acceleration of the train. It takes about 10 pounds per ton to accelerate to a speed of 6 miles per hour in one minute or 12 miles per hour in two minutes, a reasonable rate for […]

Why are air bubbles in ice cores younger than the ice in which they are sealed? Why are air bubbles in ice cores younger than the ice in which they are sealed? Because the surrounding ice was deposited many years earlier. If deposition of ice is fast the age difference between the bubbles and the […]

What are the 3 zones of estuary? Coastal habitats can vary depending on geographic region. The three main types of estuary habitats include salt marshes, seagrass, and mangroves. What are the three zones of an estuary? The first zone is where the river begins to meet the saltwater. It has more fresh water than saltwater. […]

Can you use a regular LED light for gel nails? LED Lamp, LED UV Lamp, LED Gel Lamp – These are all the same thing. They are all UV lamps using LED bulb technology. LED Lamps will only cure gel polishes that are specifically designed for LED lamps. Do black lights give off radiation? Black […]

What are the 2 conditions necessary for the conduction of heat? (i) The two objects should be in direct contact with each other. (ii) The temperature of the two objects should be different. Heat will flow from a hotter object to a cooler object. What phenomena describe when a huge rock at the state park […]

Do my dogs know I love them? Does my dog know how much I love him? Yes, your dog knows how much you love him! When you stare at your dog, both your oxytocin levels go up, the same as when you pet them and play with them. It makes you both feel good and […]

What might happen if there is no friction? Friction stops things from sliding apart. If there was no friction everything would slide to the lowest point. It would be impossible to climb up anything. With no friction the only possible movement would be falling to a lower point under gravity. What is angle of friction […]

Why can we predict eclipses? The moon can enter Earth’s shadow only when the shadow is near a node in the moon’s orbit, and that means the sun must be near the other node. Any full moon in this period will encounter Earth’s shadow and be eclipsed. This makes eclipse prediction easy. How far ahead […]

Can you leave an electric car charging overnight? Most electric cars have a separate storage area in the boot to keep the cable too. You can charge most electric cars using a three-pin plug, but it’s very slow, and will typically take around eight hours. This is fine for charging your car overnight, but it […]