Physics 11-17-22 The Work Energy Theorem & Conservation of Energy

PHYSICS: See?! I wasn’t kidding yesterday about the balancing rocks movement!

Great job today on making connections between work and energy and the conservation of energy! I think you’ll like using the work-energy theorem, it’ll save you some time and a couple of steps. Don’t forget about friction!


Photo by Deniz Altindas on Unsplash

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17 thoughts on “Physics 11-17-22 The Work Energy Theorem & Conservation of Energy

  1. Scientists were about to locate 92,000 square kilometers of seagrass via tiger sharks. To map the sea, the scientists had to dive into the water to take surveys and use the sharks while the shark was hunting for their prey. The team hauled the sharks onto boats in order to place a tracking device and a camera on the shark’s backs. After placing the device and camera on the sharks, the team released the sharks.

  2. In new research presented at the November 13 meeting of the Society of Neuroscience, some scientists claim to have found a way to produce external communication just through internal thoughts. The idea is that electrodes implanted into the brain can detect neural signals, which can then be transformed into computer text, and then further into speech by a computer. In an incredible experiment, researchers were able to predict eight words of a bilingual man who is paralyzed below the neck, in both English and Spanish. In another test, researchers were also able to predict words from a man who couldn’t speak due to a stroke by spelling out words from code words thought of by the man, such as “A” for Alpha.
    https://www.sciencenews.org/article/brain-implant-reads-peoples-thoughts

  3. Recently, scientists have been researching ways to gene edit mosquitoes to end malaria. The genes can be implemented in mosquitos with malaria. The gene interferes with reproduction.

  4. Scientist started analyzing the patterns that dandelion seeds spread. Their goal was to find why the spread so easily and so far. They attached fine wire to the ends of seeds of a dandelion and started tracking the directions that seeds spread when blown on. They found the the seeds hold on tighter until a wind from the right direction takes them off.

  5. NASA just took the next step to the moon by launching the Artemis 1 rocket. Liz Kruesi talks about how the Artemis 1 was launched on November 16 and how it will further the mission to return people to the moon.

  6. At the university of Bristol, Ellard Hunting and his fellow researchers we’re doing tests on how the pressure in the atmosphere affects living creatures, but, when a group of honeybees passed by their sensors, they found out that it could work the other way. Doing tests on the change in the strength of electric charge in the air when a swarm or group of bees passed over, they found that these small insects produce about 100 volts per meter! With this data, they scaled up their insect swarm sizes to thst of the size of a full locust storm and they found that the swarm’s electrical charge was almost that of storm clouds. Although this is the first time this as been studied, more research is needed in this field as, if enough bugs accumulate, their combined electrical charges could mess up and accidentally trigger storm sensors meant to alert people of dangerous storm

    https://www.sciencenews.org/article/insect-swarms-electric-charge-static-electricity-storm-clouds-honeybees

  7. Scientists have found “forever chemicals” on student uniforms. These chemicals, more technically known as polyfluoroalkyl substances (PFAS), do not breakdown in nature. The scientists in the article tested 72 pieces of childrens clothing and found that 2/3 of them contained PFAS. 26 stain-resistant pieces of clothing were tested, and all of those contained PFAS. PFAS are asorbed through the skin and can cause asthma, immune problems, high cholesterol, and kidney problems.

    https://www.snexplores.org/article/forever-chemicals-pfas-kids-school-uniforms-clothing

  8. As humans, all we have is hate for mosquitoes and would love for them to vanish from them earth, which could also possibly result in no more vampire spiders. This species of spider greatly relies on mosquitoes as source of food because of their similar reliance on blood for living. Mosquitoes are primary to vampire spiders because these spiders have enough venom to weaken and eventually kill the mosquito for themselves. In the end, the spiders would most like just find another source blood if mosquitoes were wiped out, but the mosquitoes are the number one option for vampire spiders.

    https://www.snexplores.org/article/if-mosquitoes-vanished-would-we-miss-them-vampire-spiders-might

  9. Scientists have been studying the effects of daylight savings time on the health of people. Surprisingly, they found that daylight savings time actually poses severe health risks such as sleep loss, heart attack, and a heightened risk of earn after stroke. This is attributed to the body’s natural instinct to rise and sleep with the sun. The body wants to wake up when the sun rises and sleep a few hours after it gets dark (this is when melatonin is released by the body). The scientists found that rather than changing our clocks biannually or keeping daylight savings time year round, we should keep DST (standard daylight time) to ensure that our bodies can remain as healthy as possible.

    https://www.sciencenews.org/article/daylight-saving-time-sleep-health-science

  10. Recently, scientists have discovered that streaked shearwaters survive typhoons by flying into them, unlike any other species of birds. Through combining data from GPS trackers and wind speeds, scientists gathered 11 years of data with 75 birds. They found that shearwaters often either ride the tailwinds around the edges of a storm, sandwich themselves between land and the eye of the storm, or head straight towards the center of the storm. Out of the 75 monitored shearwaters, 13 flew within 40 miles of a storm’s center for 8 hours, ultimately suggesting that the species might be closely following a storm’s eye to prevent being blown inland.

    Source: https://www.snexplores.org/article/how-some-seabirds-survive-storms-typhoons

  11. Scientists were about to locate 92,000 square kilometers of seagrass via tiger sharks. To map the sea, the scientists had to dive into the water to take surveys and use the sharks while the shark was hunting for their prey. The team hauled the sharks onto boats in order to place a tracking device and a camera on the shark’s backs. After placing the device and camera on the sharks, the team released the sharks.
    https://www.sciencenews.org/article/tiger-sharks-discover-worlds-largest-seagrass-prairie

  12. Scientists are developing a brain implant that works to convert thoughts to words for those that might have speech paralysis or unable to speak. It works by analyzing the neural signals transmitted when a person thinks of a word and then converts it to words. Yet, the process can only convert about 7 words a minute now, so scientists are still looking to up efficiency to make it almost as fast as the human speech’s 150 words per minute.

    https://www.sciencenews.org/article/brain-implant-reads-peoples-thoughts

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