In this video we review some practice problems about Actual Mechanical Advantage and Efficiency.<br/>
This video is intended for Engineering students at Arsen<br/&g<br/>t;al Tech HS.

Sun is obviously the hottest thing in our Solar System, but it is a mere candle when compared to several other stars and stellar phenomena, particularly supernova. A supernova is a transient event that marks the last evolutionary stage...

Voltage vs current, or sometimes it's current vs voltage; we are constantly trying to understand the differences between these two entities related to electricity. Then, there is sometimes one more entity: resistance. How do these three...

The rate of doing work, or of converting energy.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...

What is resistance? Discover how it impedes electrical flow, and why understanding it can help us to build more effective circuits, and stay safe. Physics - Electricity And Circuits - Learning Points. Resistance is how well or poorly an...

Energy comes in many forms. What are they, how do they differ and what can they be used for? Physics - Energy And Radioactivity - Learning Points. Energy is converted or transferred, but never lost. Energy is measured in joules (j)....

Why are tiny ants considered the strongest creatures in the world? An introduction to the square-cube law and why muscle mass (length³) will always outstrip strength (length²). Maths - Number A Twig Math Film....

Discover how speed, velocity and acceleration are interlinked but very different measurements of motion. Physics - Forces - Learning Points. The velocity and acceleration of any moving object can be calculated. Speed is the distance...

Heptathlon scoring involves converting distance, time or height measurements into a universal points system. The result? A complex scoring system that relies on algebra. Maths - Algebra A Twig Math Film. Reinforce and extend the learning...

The mass of one molecule of a substance. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract concepts and key...

True or false ... Heat is measured in degrees Celsius?
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Physical processes -Energy and energy transfer - Heat a
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d temperature />

Learning Points
Heat is a form o
f

energy and is measured in...

What is the difference between mass and weight?
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Physical processes -Force and mo
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ion - Gravity />

Learning Points
Mass is the amount of stuff in an object, it i
s

measured in grams and...

Believe it or not only two numbers are needed to locate your exact position on Earth - your longitude and latitude!
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People and places -Mapping - Latitude


and longitude />

Learning Points
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Specific rotation is a standardized measure of how much a chiral compound rotates plane-polarized light. It's dependent on the substance’s concentration, the path length of the light, and the temperature, providing key insights into a...

Optical activity refers to the ability of chiral compounds to rotate the plane of polarized light. Compounds that rotate light clockwise are termed dextrorotatory (+), while those that rotate it counterclockwise are levorotatory (−). The...

The Thrust Super Sonic Car was designed and built to break the world land speed record.

This video explains the need to understand the basics of how our computer works.
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This clip is from the chapter "Cloud Platforms" of the series "Web Development Concepts for Everyone".This video explains cloud platforms and...

Dive into the intricacies of how we hear, from the journey of sound waves through the ear to the brain's ability to isolate and enhance conversations in noisy environments. Witness the fascinating tests conducted on diverse age groups...

Your fitness tracker encourages you to take 10,000 steps a day for better health. Science doesn't exactly support that. Today we're talking about the research around step counts and all-cause mortality.<br/>

In this video, let's dive into the concepts of vertical and horizontal scaling, discovering the differences between these approaches. You will learn how vertical scaling increases server capacity, while horizontal scaling involves...

Discover the fascinating world of physics with our latest video on buoyant force! Join us as we conduct an experiment demonstrating the concept of buoyant force and the weight of the fluid displaced by an object. Learn how to calculate...

This video explains how to find the area of a triangle when we are given the lengths of the base and vertical height. We also explain how the formula works. Practice questions and answers are at the end of the video.

Martin Greenfield, a Holocaust survivor, creates perfect suits for U.S. Presidents with unparalleled craftsmanship.

Mr. Addit provides information about measuring with the metric scale. He then measures length, perimeter, and area.