Commands
10
Queries
14.91 ms
Query time
0
Failed Queries
| # | Time | Connection | Command |
|---|---|---|---|
| 1 | 0.90 ms | cache | CONNECT redis.internal 6379 5 <null> 5 5 |
| 2 | 0.40 ms | cache | SELECT 0 |
| 3 | 0.37 ms | cache | MGET wJo3GJ9dRH:data > anonymous-media > id=6495,locale=en,domain=www |
| 4 | 0.78 ms | cache | INFO Memory |
| 5 | 0.03 ms | cache | MULTI 2 |
| 6 | 0.14 ms | cache | SETEX wJo3GJ9dRH:data > anonymous-media > id=6495,locale=en,domain=www 2678398 ���A �_ Oa:2:{i:0;s:13:"cache-service";i:1;s:36:"cache-service-data > anonymous-media";}a:15:{s:2:"id";i:833;s:5:"title";s:25:"Video: The inclined plane";s:4:"slug";s:24:"video-the-inclined-plane";s:9:"mediaType";s:5:"video";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:157:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/833-6545f458ce04f622471538.webp";s:10:"suggestion";s:158:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/833-6545f458ce04f622471538.webp";s:5:"title";s:153:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/833-6545f458ce04f622471538.webp";}s:19:"thumbnailBackground";s:7:"#00b7ad";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2015-08-03 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}s:8:"isExpert";b:0;s:5:"goals";N;s:5:"width";i:550;s:6:"height";i:440;s:11:"description";s:1895:"<p>Can you lift this 50kg box 1 meter high?</p> <p>A 50 kg mass undergoes an equal downward force : its weight</p> <p>The magnitude of this force is about 500 Newtons.</p> <p>To lift it, the resistance force must be counteracted by exerting an opposite and equal magnitude effort force.</p> <p>If the box is too heavy, then muscular force isn’t enough to lift it.</p> <p>The inclined plane is a simple machine used to change the direction and the magnitude of the resisting force.</p> <p>The force of gravity can be resolved into two components:</p> <p>• one directed perpendicular to the inclined surface…</p> <p>• and the other directed parallel to the inclined surface</p> <p>The normal force balances the perpendicular force.</p> <p>The net force is simply the parallel force component … and the force or friction which prevents the box from sliding.</p> <p>Let’s get rid of friction!</p> <p>To move the box along the inclined surface, an effort force has to be exerted to counteract this new resistance force.</p> <p>The Mechanical Advantage of the inclined surface relies on the fact that the magnitude of the resistance force is less than the weight.</p> <p>For this surface inclined at an angle of 30 degrees, the mechanical advantage is equal to 2.</p> <p> The gentler the slope the greater the mechanical advantage.</p> <p>However, what has just been gained in force has been lost in the distance to cover.</p> <p>The energy required to move the box is the result of the force multiplied by the distance.</p> <p>Due to conservation of energy, effort force must be increased if the distance is decreased.</p> <p>The work done lifting the box remains the same.</p> <p>Where energy is concerned, remember that nothing is lost, nothing is created, everything is transformed.</p>";s:11:"suggestions";a:6:{i:0;a:9:{s:2:"id";i:408;s:5:"title";s:7:"Pulleys";s:4:"slug";s:7:"pulleys";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:157:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/408-6545f351aed09389702939.webp";s:10:"suggestion";s:158:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/408-6545f351aed09389702939.webp";s:5:"title";s:153:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/408-6545f351aed09389702939.webp";}s:19:"thumbnailBackground";s:7:"#ee1b2e";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2015-05-11 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}s:8:"isExpert";b:0;s:5:"goals";s:327:"<ul> <li>To compare the properties of fixed pulleys and pulley systems.</li> <li>To illustrate the usefulness of pulley systems.</li> <li>To address the notion of energy in order to teach that it is conserved.</li> <li>To introduce other devices that can be used to multiply forces (levers, pedals, wheels).</li> </ul>";}i:1;a:9:{s:2:"id";i:681;s:5:"title";s:9:"Corkscrew";s:4:"slug";s:9:"corkscrew";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:157:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/681-6545f4049a1bb885183171.webp";s:10:"suggestion";s:158:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/681-6545f4049a1bb885183171.webp";s:5:"title";s:153:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/681-6545f4049a1bb885183171.webp";}s:19:"thumbnailBackground";s:7:"#f6951d";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2015-05-11 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}s:8:"isExpert";b:0;s:5:"goals";s:296:"<ul> <li>To understand how a simple technical object functions by examining its technical drawing.</li> <li>To identify simple machines involved in the functioning of a technical object (lever, gear rack and pinion).</li> <li>To identify links, and guides in a technical object.</li> </ul>";}i:2;a:9:{s:2:"id";i:469;s:5:"title";s:11:"Quiz Energy";s:4:"slug";s:11:"quiz-energy";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:157:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/469-6545f373f0174323779819.webp";s:10:"suggestion";s:158:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/469-6545f373f0174323779819.webp";s:5:"title";s:153:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/469-6545f373f0174323779819.webp";}s:19:"thumbnailBackground";s:7:"#f6adcc";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2015-05-11 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}s:8:"isExpert";b:0;s:5:"goals";s:178:"<ul> <li>To review your knowledge of the functioning of an electric power plant.</li> <li>To review the different ways in which electrical energy can be obtained.</li> </ul>";}i:3;a:9:{s:2:"id";i:391;s:5:"title";s:5:"Gears";s:4:"slug";s:5:"gears";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:157:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/391-6545f347288ed204809204.webp";s:10:"suggestion";s:158:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/391-6545f347288ed204809204.webp";s:5:"title";s:153:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/391-6545f347288ed204809204.webp";}s:19:"thumbnailBackground";s:7:"#00a751";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2015-05-11 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}s:8:"isExpert";b:0;s:5:"goals";s:139:"<ul> <li>To define the basic principles of simple gear systems.</li> <li>To illustrate the possibilities of changing speed.</li> </ul>";}i:4;a:9:{s:2:"id";i:706;s:5:"title";s:17:"Moment of inertia";s:4:"slug";s:17:"moment-of-inertia";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:157:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/706-6545f4186ade4414252434.webp";s:10:"suggestion";s:158:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/706-6545f4186ade4414252434.webp";s:5:"title";s:153:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/706-6545f4186ade4414252434.webp";}s:19:"thumbnailBackground";s:7:"#00b7ad";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2015-05-11 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}s:8:"isExpert";b:0;s:5:"goals";s:127:"<ul> <li>To show that different positions of the axis result in different moments of inertia for the same object.</li> </ul>";}i:5;a:9:{s:2:"id";i:251;s:5:"title";s:21:"Inclined plane theory";s:4:"slug";s:21:"inclined-plane-theory";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:157:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/251-6545f2f67443b213631408.webp";s:10:"suggestion";s:158:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/251-6545f2f67443b213631408.webp";s:5:"title";s:153:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/251-6545f2f67443b213631408.webp";}s:19:"thumbnailBackground";s:7:"#004387";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2015-05-12 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}s:8:"isExpert";b:0;s:5:"goals";s:201:"<ul> <li>Understand the concepts of the inclined plane theory.</li> <li>Introduce the notion of mechanical energy (work)</li> <li>Know how to use the formula of energy W = F × D</li> </ul>";}}s:4:"tags";a:4:{i:0;s:5:"force";i:1;s:14:"inclined plane";i:2;s:20:"mechanical advantage";i:3;s:14:"simple machine";}s:12:"baseNodeName";s:7:"Physics";} |
| 7 | 0.09 ms | cache | SADD wJo3GJ9dRH:tagscache-service wJo3GJ9dRH:data > anonymous-media > id=6495,locale=en,domain=www |
| 8 | 0.08 ms | cache | SADD wJo3GJ9dRH:tagscache-service-data > anonymous-media wJo3GJ9dRH:data > anonymous-media > id=6495,locale=en,domain=www |
| 9 | 1.69 ms | cache | EXEC |
| 10 | 10.43 ms | cache | MGET wJo3GJ9dRH:data > locale-page-groups > locale=en |