How gravity causes a perfectly spherical ball to roll down an inclined plane is part of the elementary school physics canon.

A cone is a 3D shape with 2 faces and one edge A sphere is a 3D shape. It has one continuous face and no edges A cylinder is a type of prism. It has 3 faces and 2 edges The volume of a cone is ...

A cylinder has 2 flat circular faces and a curved ... 4 \pi r^2\) is given on the formula sheet A hemisphere is half of a sphere. The volume can be found by calculating the volume of the whole ...