Falling for fun : gravity in action /
by Nathan Lepora.
- North American ed.
- Pleasantville, NY : Gareth Stevens Pub., c2008.
- 32 p. : col. ill. ; 26 cm.
- The science behind thrill rides .
Includes index.
Gravity -- Weight -- G-forces and free fall -- Center of gravity -- Energy -- Kinetic energy -- Potential energy -- Conservation energy.