Static Electricity and Discharges Quiz

Small electric discharges can damage delicate computer parts such as hard drives or USB memory sticks.

A lightning bolt is a natural example of an electric discharge.

The imbalance of charge is caused by swirling winds that enable water and ice particles to come in contact and become charged.

<p>Positive charges move to the top of the cloud, while negatively charged water droplets move to the bottom.</p> Signup and view all the answers

<p>The specifics of the process are not fully understood, though it is theorized to be linked to wind patterns and particle interactions.</p> Signup and view all the answers

<p>The word 'electricity' comes from the Greek word 'e-lektron' which means amber.</p> Signup and view all the answers

<p>Lightning heats the surrounding air rapidly, causing it to expand and create a sudden loud sound known as thunder.</p> Signup and view all the answers

<p>Static electricity is used in static-cling film for signs and decals, as well as in photocopiers for transferring images onto paper.</p> Signup and view all the answers

<p>Photocopiers project a laser beam onto a drum, creating a negatively charged pattern that attracts positively charged toner to it.</p> Signup and view all the answers

<p>Rubbing materials such as wool or fur against amber generates static electricity, allowing it to attract small objects.</p> Signup and view all the answers

<p>To protect electronic devices from harmful electrostatic charges.</p> Signup and view all the answers

<p>Oil-based plastics are being replaced with paper-based packaging.</p> Signup and view all the answers

<p>A positive charge develops on the ground, and when the difference becomes great enough, a path forms for discharge.</p> Signup and view all the answers

<p>They prevent electrostatic discharges from affecting the devices during shipping.</p> Signup and view all the answers

<p>Electrostatic discharge can cause significant damage to sensitive electronic components.</p> Signup and view all the answers

<p>Manufacturers are aiming to reduce reliance on non-renewable resources and minimize plastic waste.</p> Signup and view all the answers

<p>Electrostatic charge is the buildup of excess electrons that can discharge suddenly and damage devices.</p> Signup and view all the answers

<p>Devices such as computers and video games typically use anti-static packaging.</p> Signup and view all the answers

<p>Static electricity is an imbalance of electric charge on the surface of an object, and it is described as 'static' because the charges remain in one place until they move suddenly.</p> Signup and view all the answers

<p>A van de Graaff generator demonstrates static electricity by charging an object, causing hairs to stand on end due to the repelling same charges.</p> Signup and view all the answers

<p>An electric discharge occurs when there is a sudden movement of static charge between two objects, typically involving the transfer of electrons.</p> Signup and view all the answers

<p>Rubbing socks on a carpet can transfer electrons to a person, creating a static charge that discharges when touching a metal doorknob.</p> Signup and view all the answers

<p>The strands of hair repel each other when charged because they carry the same static electric charge, causing them to spread apart.</p> Signup and view all the answers

<p>When static electricity is built up on an object, the charges remain until there is a path for discharge, often resulting in a shock.</p> Signup and view all the answers

<p>Static electricity involves everyday experiences by allowing charge buildup from actions like walking on carpet, leading to shocks when touching conductive objects.</p> Signup and view all the answers

<p>A visual sign of built-up static electricity is when a person's hair stands on end due to the repulsion of similarly charged hairs.</p> Signup and view all the answers

<p>The spark is caused by the sudden discharge of static electricity built up from the friction between the shoes and the rug.</p> Signup and view all the answers

<p>Static charge in a thundercloud builds up through the collision of water droplets and ice particles, leading to positive and negative charges being separated.</p> Signup and view all the answers

<p>Computer technicians must avoid static electric charge because it can damage sensitive electronic components.</p> Signup and view all the answers

<p>The laser creates a negatively charged image on the positively charged drum, allowing positively charged toner to stick to the negatively charged areas.</p> Signup and view all the answers

<p>The selenium drum serves to hold the alternating charges, enabling the toner to adhere properly during printing.</p> Signup and view all the answers

<p>The negatively charged areas on the drum are crucial because they attract positively charged toner particles, allowing for image transfer.</p> Signup and view all the answers

<p>The paper is charged with a higher negative charge, which helps to pull the positively charged toner particles off the drum during transfer.</p> Signup and view all the answers

<p>An electric discharge is the sudden movement of electrons between objects with differing charges, often resulting from static electricity.</p> Signup and view all the answers