Why do objects transfer heat? All matter contains heat energy. Heat energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases. The transfer or flow due to the difference in temperature between the two objects is called heat. How is heat different from temp? Heat […]
What are waves in everyday life examples?
What are waves in everyday life examples? Transverse waves ripples on the surface of water. vibrations in a guitar string. a Mexican wave in a sports stadium. electromagnetic waves – eg light waves, microwaves, radio waves. seismic S-waves. Do phones really fry your brain? Mobile phones release radiofrequency energy, or radio waves, that can be […]
How can I make my PowerPoint presentation attractive and easy to understand the content?
How can I make my PowerPoint presentation attractive and easy to understand the content? Design and Graphical Images Use design templates. Standardize position, colors, and styles. Include only necessary information. Limit the information to essentials. Content should be self-evident. Use colors that contrast and compliment. Too may slides can lose your audience. Keep the background […]
Is ammonium hydroxide harmful to humans?
Is ammonium hydroxide harmful to humans? contact can severely irritate and burn the skin and eyes leading to eye damage. ► Exposure can irritate the eyes, nose and throat. ► Inhaling Ammonium Hydroxide can irritate the lungs. Higher exposures may cause a build-up of fluid in the lungs (pulmonary edema), a medical emergency. Is ammonium […]
What are the 2 types of operating system?
What are the 2 types of operating system? What are the types of an Operating System? Batch Operating System. In a Batch Operating System, the similar jobs are grouped together into batches with the help of some operator and these batches are executed one by one. Time-Sharing Operating System. Distributed Operating System. Embedded Operating System. […]
What are the 3 stages of a cool down?
What are the 3 stages of a cool down? There are three primary phases in the cool down period: 1: Immediate Phase. The immediate phase occurs right after the run, when the heart rate is still elevated and muscles are fatigued. 2: Intermediate Phase. 3: Late Phase. How do you feel after cooling down? Stopping […]
Are work and impulse the same?
Are work and impulse the same? Impulse is a vector, so a negative impulse means the net force is in the negative direction. Likewise, a positive impulse means the net force is in the positive direction….Common mistakes and misconceptions. Impulse Work Changes an object’s momentum energy Quantity type vector scalar What does kW mean in […]
What is the difference between yellow and white road lines?
What is the difference between yellow and white road lines? Broken or “dotted” white lines are used to show the center line between lanes. Yellow lines show you where traffic is going in different directions. Stay on your side of the yellow line and you’ll avoid nasty head-on collisions with folks coming the opposite way. […]
What does determine the chemical Behaviour of atom?
What does determine the chemical Behaviour of atom? The atomic number indicates the number of protons within the core of an atom. When an atom is generally electrically neutral, the atomic number will equal the number of electrons in the atom, which can be found around the core. These electrons mainly determine the chemical behaviour […]
Is the sun hotter than lightning?
Is the sun hotter than lightning? Lightning is four times hotter than the sun. The surface of the sun is around 11,000 degrees F. Scientists determined that temperature more than 20 years ago by examining the light given off by a bolt of lightning. How common is ball lightning? 1AD25), ball lightning has been seen […]