We walk here, we walk there, we walk everywhere. Maybe you’re headed to work or to lunch in a busy city. You’re expending energy, and the exercise is good for you ...

The elastic potential energy stored can be calculated using the equation: A spring has a spring constant, k, of 3 N/m. It is stretched until it is extended by 50 cm. Calculate the elastic potential ...

The acid solution will warm up even if the spring isn’t compressed, due to the heat of reaction as the acid dissolves the metal. If the spring is compressed, it will warm up slightly more. As each ...

This resource is part of Science Friday’s Educator Phenomena Forum and was developed collaboratively by Jose Rivas, an engineering and AP science teacher in Lennox, California, and Sarah Han, a PhD ...