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Unit B: Changes in Motion

Beijing National Olympic Stadium

Go for the Gold with STEM

STEM Explained

Learn about how STEM powers the Winter Olympics.

Four Harvard training aircraft

How Planes Fly

Backgrounders

Learn about what gets planes up in the air, what keeps them up there, and what brings them down again.

Drop spindle with wool

Recycling Yarn Part 2: Spinning

Hands-on Activities

This is the second part of a two-part activity on recycling yarn.

Image showing the physics of flight on a drone.

Resources on Physics and Aerospace

STEM Explained

Resource page including articles and career profiles related to physics and aerospace.

Pitcher holding a baseball

Why Do Curveballs Curve?

STEM Explained

Bernoulli’s equation is key to understanding why curveballs curve.

The planet Mars

What is your weight on another planet?

Hands-on Activities

Do you weigh the same on Jupiter as you do on Earth? Learn to calculate your weight on a different planet.

Mars Science Laboratory Parachute Qualification Testing

Testing Parachutes for Mars

STEM Explained

NASA engineers apply kinematics and dynamics to test parachutes designed specifically to help space probes land safely using aerodynamics.

How can you lift a marble off a table without touching it with your hands?

How can you lift a marble off a table without touching it with your hands?

Hands-on Activities

Is it magic? No - it’s physics! Use circular motion to overcome the force of gravity and amaze your family!

Artist’s conception of NASA’s Space Launch System

Escape Velocity

STEM Explained

Why do a baseball and a rocket need the same launch speed to get from Earth into space? It has to do with physics and gravitational force.

Billiard balls and a cue stick on a felt-covered table (PIRO4D, Pixabay)

Billiards and Collisions

STEM Explained

The game of billiards shows the principles of collisions, momentum & impulse, and kinetics at work!

Planet and asteroid orbits around the Sun

Orbital Mechanics

Backgrounders

This backgrounder helps explain the laws of Orbital Mechanics, including Newton’s Laws.