What are magnetic objects? Magnetic object – any object that can be attracted to a magnet. Paperclips, iron filings, keys, and bobby pins are all examples of magnetic objects. Magnetic field – an invisible area around a magnet where its magnetic force affects other objects. What magnetism means? Magnetism is the force exerted by magnets […]
What is affecting the water cycle?
What is affecting the water cycle? Climate change is affecting where, when, and how much water is available. Extreme weather events such as droughts and heavy precipitation, which are expected to increase as climate changes, can impact water resources. What is its effect on the life cycle of organisms drought? Drought also affects the environment […]
Why solar neutrino problem is important?
Why solar neutrino problem is important? The Sun is the only star close enough to the Earth for us to observe the neutrinos produced by nuclear fusion reactions. It is important to observe the abundant low-energy solar neutrinos in order to test more precisely the theory of stellar evolution. What is the meaning of the […]
How does climate change affect biodiversity and society?
How does climate change affect biodiversity and society? As climate change alters temperature and weather patterns, it will also impact plant and animal life. Scientists expect the number and range of species, which define biodiversity, will decline greatly as temperatures continue to rise. Why is climate change a threat to biodiversity? The risk of climate […]
How can theories change?
How can theories change? Theories may change, or the way that they are interpreted may change, but the facts themselves don’t change. Tanner likens theories to a basket in which scientists keep facts and observations that they find. The shape of that basket may change as the scientists learn more and include more facts. What […]
Which bond is most difficult to break?
Which bond is most difficult to break? Intramolecular covalent bonds Which bond is stronger CC or CN? The stability of a molecule is a function of the strength of the covalent bonds holding the atoms together….Bond Dissociation Energy. Bond C-N 293 C-O 358 C-F 485 C-C 348 What kind of bond is CN? A carbon–nitrogen […]
What is a balance called?
What is a balance called? A scale or balance is a device to measure weight or mass. These are also known as mass scales, weight scales, mass balances, weight balances. What are the weights for a Class A balance made of? These sets usually cantain cylindrical weights ranging from 1-50 g and fractional weights of […]
Why is geocentric model wrong?
Why is geocentric model wrong? The first big problem with the geocentric model was the retrograde motion of planets like Mars. His model has the planets moving around the Sun in circular orbits. This can explain retrograde motion, but his model doesn’t fit all the planetary position data that well. Why is the geocentric model […]
What is the relationship between energy and electricity?
What is the relationship between energy and electricity? With power and energy, power is units of energy divided by time. The same difference as distance and velocity. The units of power are watts, the units of energy are joules. A watt is one joule divided by one second. How do I know if my smart […]