This activity was taken from the Noggin BuilderZ advanced activity book Steps: Use tape to secure the square sponge to the tower if it drops off.  At the same time, drop one disc or a coin from the tower and drop one next to the tower,  which one will reach the ground first?  What is the reason? Why would we want to reduce the force...

This activity was taken from the Noggin BuilderZ advanced activity book Objectives: An inclined plane is a flat surface that is  sloped It takes less effort to move or lift something higher. The amount of work is the same: more force x shorter distance = less force x longer distance It will be harder to push a rock up a steep slope, so using a less...