What unit is coefficient of friction? newtons What does a wheel and axle do? Wheel and axle, basic machine component for amplifying force. In its earliest form it was probably used for raising weights or water buckets from wells. Its principle of operation is demonstrated by the large and small gears attached to the same […]
What is the difference in the charges on a balloon rubbed in your hair and a glass rod rubbed?
What is the difference in the charges on a balloon rubbed in your hair and a glass rod rubbed? The balloon steals electrons from your hair, leaving the hair positively charged, and the balloon negatively charged. It causes the hair to be apart from each other, because they have the same charge. Glass has a […]
Which sample has maximum density?
Which sample has maximum density? The maximum density of water is at 4°C as there are two opposite effects that are in balance. Why do metals have low density? Since alkali metals have a large atomic size and low atomic weight, they have low density. What are the top 10 densest metals? The 10 Densest […]
What is meant by the hole in the ozone layer quizlet?
What is meant by the hole in the ozone layer quizlet? Ozone hole. a thinning part of the ozone layer. A chemical reaction caused by CFC’s and other compounds in the atmosphere. UV Radiation. Is the ozone hole over Antarctica? The 2020 Antarctic ozone hole grew rapidly from mid-August and peaked at around 24.8 million […]
What is acceptable Behaviour from teachers?
What is acceptable Behaviour from teachers? treating pupils with dignity, building relationships rooted in mutual respect, and at all times observing proper boundaries appropriate to a teacher’s professional position. having regard for the need to safeguard pupils’ well-being, in accordance with statutory provisions. What is poor teaching method? Ardictionary defines teaching “as the activity of […]
How do you magnetize metal permanently?
How do you magnetize metal permanently? Take two magnets put one North pole and one South pole on the middle of the iron. Draw them towards its ends, repeating the process several times. Take a steel bar, hold it vertically, and strike the end several times with a hammer, and it will become a permanent […]
Where should you connect a voltmeter?
Where should you connect a voltmeter? A voltmeter is placed in parallel with the voltage source to receive full voltage and must have a large resistance to limit its effect on the circuit. An ammeter is placed in series to get the full current flowing through a branch and must have a small resistance to […]
What is perfect black?
What is perfect black? A body which absorbs all the radiant energy incident upon it and reflects or transmits none is called a perfectly black body. It absorbs all incident energy. What is the meaning of irradiation? Irradiation is the process by which an object is exposed to radiation. The term irradiation usually excludes the […]
What is the fastest way to solve math questions?
What is the fastest way to solve math questions? 10 tricks for doing fast math Adding large numbers. Adding large numbers just in your head can be difficult. Subtracting from 1,000. Multiplying 5 times any number. Division tricks. Multiplying by 9. 10 and 11 times tricks. Percentage. Quickly square a two-digit number that ends in […]
Where is energy from respiration released?
Where is energy from respiration released? mitochondria Is energy required for respiration? The source of the energy required to regenerate ATP is the chemical energy stored in food (e.g. glucose). The cellular process of releasing energy from food through a series of enzyme-controlled reactions is called respiration . Some of the energy released is used […]