In the Simple Machines app by Tinybop, students experiment with wheels and axles by sending a cyclist through an obstacle course. In this activity, you can see how wheels and axles work by getting outside and going for a ride together!
+ Bikes, scooters, or skateboards
SEE HOW A WHEEL AND AXLE WORK:
1. Ride bikes, scooters, or skateboards with your students.
2. Notice which direction you’re applying an input force.
3. Notice which direction you’re moving.
On a bike, the input force is applied in a circular motion, around and around as you pedal. The wheel and axle changes the direction of your force so you move forward in a line. With every pedal, you apply a strong input force over a short distance on the axle to move the wheel a greater distance with less force.
On a scooter or a skateboard, you push down on the ground to move forward. Again, the direction of your force is changed. But, the wheel and axle in a scooter or skateboard work in the opposite way a bike does. You apply a weaker force over a longer distance around the wheel and the axle turns a shorter distance with more force.
Copy and paste the following link to your browser to download the Simple Machines app by Tinybop: