Roller

Who is credited with the discovery of gravity?

• Nikola Tesla

• Galileo Galilei

• Isaac Newton

• Albert Einstein

What is the difference between speed and velocity?

• Velocity is how fast something moves

• Speed is how fast something moves, velocity has direction

• Speed has direction, velocity does not

• They are the same

What type of energy does a roller coaster have at the highest point?

• Gravitational potential energy

• Thermal energy

• Mechanical energy

• Kinetic energy

Which material is commonly used for building modern roller coasters?

• Steel

• Plastic

• Concrete

• Wood

What shape is best for a loop on a roller coaster?

• Circle

• Square

• Clothoid

• Triangle