Elastic Band Forces Experiment
Force movement experiments that use easy to get household materials.
Elastic band forces experiment. Pull the box and elastic band back to the first line drawn on the paper. How to build a rubber band force scale. Explode a watermelon using just rubber bands. Place the elastic band around the box holding in down either side using your fingers.
Set up your apparatus as shown in the measure the length of your spring without any hanging masses. How far can the stream of water go. Elastic bands are great for exploring elasticity and learning about potential energy. Store up energy in an elastic band to make a cotton reel car move.
Place the box on the dot in the middle of the paper. More elastic band powered experiments. As you wind the paddle with the elastic band the band stretches storing up energy. Hang a mass of 100g on the spring measure the new length of the spring calculate the extension of the spring repeat steps 3 5 for increasing the mass in increments of 100g take note of your results in the table.
Slightly more simple and much more powerful is our balloon powered car. This is nice especially since in the past i used a rubber band to make a diy force probe. Shoot a rubber band by hooking it on the front edge of the ruler then stretching it back to 10 centimeters cm on the ruler and letting the rubber band go. A great experiment for kids for exploring air pressure.
When you let the paddle go the elastic band unwinds to shrink back to its original size releasing the stored energy and turning the paddle. So for some cases the rubber band does indeed act like a spring. Discover science activities by educators that teach you how things really move. The turning of the paddle propels the boat through the water.
This science activity is perfect for science. Making vehicles move science experiments we used carbon dioxide released from a baking soda and vinegar reaction to power a bottle boat. Firstly by pulling back the rubber band racer you stretch the rubber band thereby storing energy also known as potential energy. More details at dot physics scienceblogs.
This science experiment applies multiple ideas in classical physics all in one fun little stem challenge.