When does an object have an overall positive charge? What happens when a positively-charged object touches an electroscope? What happens when a negatively-charged object touches an electroscope? If a neutral me
How does an object become negatively charged? How does magnetism work? How are electrons distributed in a negatively-charged item? Why does electricity produce magnetism? How are electrons responsible for magnetism? How is an electric field created?
An object produces sound when it vibrates in matter. This could be a solid, such as earth; a liquid, such as water; or a gas, such as air. Most of the time, we hear sounds traveling through the air in our atmosphere. When something vibrates in the atmosphere, it moves the air pa...
However, light that hits the reverse side of each fringe does the opposite. Instead of moving upward and diverging, it moves downward and converges. It turns into a focused reproduction of the object — a real image that you can see if you put a screen in its path. The real image is ...
You touch a hot object and immediately drop it or withdraw your hand from the heat source. You do this so quickly you don't even think about it. How does this happen? Your nervous system coordinated everything. It sensed the hot object and signaled your muscles to let it go. Your ...
Certain chemicals called chelators have an affinity to positively charged ions. Depending on the nature of the clumps, chelators can be added to dissolve the bonds between them without harming the cells. Ethylenediaminetetraacetic acid (EDTA) is an example of a chelator commonly used to dissolve ...
This type of energy consumption occurs when an object is made to vibrate, which leads to the production of sound. 8. Thermal Energy Consumption Thermal energy consumption occurs when molecules get moved. The energy coming from fire is an example of thermal energy. ...
What Does a Solar Inverter Do? A solar inverter converts direct current (DC) electricity into alternating current (AC) electricity. Your photovoltaic panels will automatically generate DC power, but you must convert this into AC electricity to power your appliances and devices. An inverter forces ...
And as we learned in the previous section, fabric softeners are cationic, or positively charged, so they equalize the electrons to prevent static. Dryer sheet makers were proficient at reducing static early on, leaving them free to add other features such as long-lasting scents. Read on to ...
Compare how an object becomes positively charged to how it can become negatively charged. Explain what is meant by "relative charge" and why it has no units. What happens when a negatively-charged object touches an electroscope? Static charges can be applied to ne...