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Rocket

Theme A - Space, Time & Motion

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Thermometer

Theme B - The Particulate Nature Of Matter

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Water Wave

Theme C - Wave Behaviour 

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Magnifying Glass Tilted Right

Theme D - Fields

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Microscope

Theme E - Nuclear & Quantum Physics

Sure, let&#39;s dive into the exciting world of physics and take on the skydiving adventure to understand air resistance and drag force! Hang on tight, we&#39;re about to plunge into this topic together!

<ul>
	<li>Definition: The drag force is what objects experience when they move through air (or other fluids). It slows objects down.</li>
	<li>Effect: Imagine trying to run underwater. You feel a force holding you back. That&#39;s a form of drag force!</li>
</ul>

<ul>
	<li>Alan Eustace&#39;s Record Jump: In 2014, he jumped from 41.4km above New Mexico, USA, reaching a speed of 1300km/h, faster than the speed of sound. Normal skydives are less than 200km/h.</li>
	<li>Why the Difference in Speed? Air resistance changes with height. The higher you are, the less air there is, and the less air resistance you experience.</li>
</ul>

<ul>
	<li>Weight Force: Acts vertically downwards, and it&#39;s almost constant. It doesn&#39;t change much even at 41 km above Earth&#39;s surface.</li>
	<li>Drag Force: Acts in the opposite direction of motion. If falling vertically, drag pulls you upwards.</li>
	<li>Buoyancy: An upward force due to the displacement of air by the diver.</li>
</ul>

<ul>
	<li>Jumping Out: Almost no air resistance at first since the speed is almost zero.</li>
	<li>Increasing Speed: As you go faster, air resistance gets stronger, and the net force decreases, slowing your acceleration downwards.</li>
	<li>Terminal Speed: You reach a constant speed where weight force equals resistance force. No more acceleration, just a thrilling, steady descent.</li>
	<li>Opening the Parachute: Now, there&#39;s a larger surface area. The upwards resistive force is greater than the weight, so you start slowing down for a safe landing at around 12 m/s.</li>
</ul>

Figure 32 (not shown here) would display a typical graph of vertical speed against time, giving you a visual representation of how a skydiver slows down and reaches a constant speed.

<ul>
	<li>Terminal Velocity of a Cat: Ever heard that a cat always lands on its feet? Cats have a terminal velocity of about 60 mph, and their flexible body structure allows them to survive falls from great heights!</li>
	<li>Sports and Air Resistance: In sports like cycling, athletes often wear aerodynamic clothing to reduce air resistance, helping them speed up. Even the shape of a car is designed to reduce drag.</li>
</ul>

Air resistance is like the superhero&#39;s arch-nemesis in the world of motion. It&#39;s a force that always opposes the direction of movement. Whether it&#39;s a record-breaking skydive or a bicycle ride in the park, it&#39;s there, influencing the motion of objects. By understanding these forces, we can literally learn how to fly! So next time you&#39;re in a car with the window down, stick your hand out and feel the drag force. It&#39;s physics in action!

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Now, who&#39;s ready to jump out of a plane with me? (Just kidding, study hard, and you&#39;ll soar in physics!)

Theme A - Space, Time & Motion

Understanding Air Resistance: The Record-Breaking Skydive Of Alan Eustace

Table of content

Introduction to drag force

Air resistance – a real-life example with skydiving

Forces acting on a skydiver

Unlock the Full Content!

Theme A - Space, Time & Motion

Understanding Air Resistance: The Record-Breaking Skydive Of Alan Eustace

Table of content

Introduction to drag force

Air resistance – a real-life example with skydiving

Forces acting on a skydiver

Unlock the Full Content!