Question

question 4
read the following main idea.
the design of roller coasters is based on the laws of physics.
which of the following details does not support this main idea?
there are no engines on roller coasters; kinetic energy drives the coaster forward.
the amount of friction on the wheels affects the speed of the ride.
wooden roller coasters are scarier than steel roller coasters.
inertia is the force that keeps you in your seat during a loop - the - loop.

Explanation:

The main idea is about the design of roller - coasters being based on physics laws. The first option (no engines, kinetic energy) relates to energy in physics. The second option (friction affecting speed) is a physics concept. The fourth option (inertia) is a physics principle. The third option (wooden vs steel being scarier) is about perception (not a physics - based detail for design).

Answer:

Wooden roller coasters are scarier than steel roller coasters.