Reaction Time Lab

​Collisions and Reaction Time

Effects of Distracted Driving

Multiple Choice

This was a diagram shown in the reading yesterday. Fill in the blank: "At slow speeds, stopping distance can be ____"

• very very short

• many car lengths

Multiple Choice

You learned that increasing speed increases kinetic energy. If the speed of a car increases 3x, how much more does kinetic energy increase?

• 3x

• 6x

• 9x

Multiple Choice

The force of a collision transfers energy when objects collide. The result of energy transfer in a collision (such as a car accident) results in....

• property damage or bodily harm

• nothing

• no damage to the car

• no harm to the occupants of the car

Multiple Choice

To drive safely, what is the general rule of thumb?

• Keep one car length between vehicles for every 10mph

• Stay 12 inches from the vehicle in front of you

• Drive faster under icy or wet conditions

• If you are driving faster, keep a shorter distance between cars

Multiple Choice

Why might a highway have a slower speed limit for trucks?

• A. Trucks have greater mass, so reducing their speed lowers their kinetic energy and decreases stopping distance and crash severity.

• B. Lower speed limits help limit the kinetic energy of heavy trucks, reducing wear on road surfaces and bridges.

• C. Because trucks carry more kinetic energy at high speeds, slower limits help improve stability and reduce the chance of rollovers.

• All answer choices are correct

experiences auditory distractions from a passenger

or tactile distractions