How can we slow satellites down so that they return to Earth? In this educational resource, we’ll find out how the force of drag can help satellites slow down. We’ll conduct an experiment using helicopter propellers and try to slow them down using tissue paper or cling film. What will be the result?

This interactive resource explores how satellites slow down to return safely to Earth. Through a simple, fun activity, your students will discover the role of drag and how increasing the surface area of an object influences this force – a key concept in understanding re-entry into the Earth’s atmosphere.

This material is a great way to introduce Science, Technology, Engineering and Mathematics (STEM ) concepts by linking physical principles to real-world applications in space. It includes hands-on experiments (such as testing toy helicopters with different materials) to make learning concrete and engaging.

At the end of this activity, students will be able to :

• Understand that drag is a form of friction between an object and the air.

• Understand that increasing the surface area of an object increases its drag force

• Understand that space debris, such as satellites, can be slowed down by atmospheric drag, and that this phenomenon can be exploited for de-orbiting and space-cleaning techniques.

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