To deform and crumple in a collision
The simplest answer to that is that the process of crumbling absorbs the energy of impact so that the passengers in the safety cell of the cabin experience as little as practically possible of this energy. The dynamics of what happens in the crash are very complex but it is best understood by imagining the difference in pain felt when a soft ball hits you as opposed to when a hard ball of approximately the same mass hits you at the same speed. The soft ball hurts a lot less....
The most expensive part of a car crash are the medical bills. The most harmful part of a car crash is the sudden change in acceleration, or jerk, that the passengers feel as the car suddenly changes speed. In order to slow down the sudden change of speed, cars are equipped with crumble zones. The crumble or crumple zone is designed to compact if it is hit with enough force. It takes a little while to compact, and the whole time, the car is slowing down. It spreads the force of the crash out over a longer time so it hurts the people inside the car less.
The downside to crumple zones is that in low speed crashes where the passengers would have been fine anyway, the car is still damaged more than it would have been if it had a more solid frame.
To crumple, bend, or tear paper is a physical change. Because crumpling only changes something's shape, it is a physical change.
temperate zones
crumble zones on a car are zones in which the designated zone crumbles to reduce the schock from the objecct the car is hitting or being hit by. they crumble at different levels of difficulty depending on how far they are from the passengers in the car.
vegetation zones are zones that are made up of common vegetation characteristics
Your question interested because as dumb as I feel, I didn't know that there was half hour time zones, so I researched it and found out why. The only way for me to explain it is to explain the purpose of time zones in the first place, and by the way I found out they are called "offset time zones" and they can be thirty minutes or even fifteen minutes. There is twenty four time zones in the world which are based on the fifteen degree increments of longitude. This is because the earth takes twenty four hours to rotate and there are 360 degrees of longitude so 360 divided by 24 equals 15. So the sun moves across 15 degrees of longitude in an hour. The offset time zones were designed to better coordinate noon as the point in the day when the sun is at its highest point in the sky, which is what our time zones revolve around... I hope this answers your question! Reference About.com: Geography - Offset Time Zones. http:/geography.about.com/od/culturalgeography/a/offsettimezones.htm.
Crumple zones,Air bags,
All your Newer car have crumple zones
Crumple zones are areas of a vehicle designed to absorb energy during a collision and reduce personal injury.
Structural areas of a vehicle designed to absorb energy during an accident in order to reduce injuries of occupants.
crumple zones absorb impact damage to protect the passenger cell
Crumple Zones prevent damage or injury by supplying a place in the structure of the frame to crumple in an accident.
To deform and crumple in a collision
crumple zones are areas on a car's body that have been designed to collapse in the event of a collision. They are useful in a collision to absorb some of the energy which makes the collision feel less severe to the occupants of the car and reduce the damage they sustain as a result of the collision.
Crumple zones are zones built into cars that crumple in a controlled manner. The main crumple zones are at the front and the rear of a vehicle. On impact, they crumple up in a controlled manner, which stops the force energy reaching the occupants and injuring them. The crumple zone dissipates the energy Advantage :they save lives by stopping forceful energy Disadvantage: they can kill occupants in severe accidents because in high speed impacts they can dislodge the dashboard from the frame of the body Potential collapse of the footwells, trapping the driver and passenger Crumple zones can be recognised by bent body panels.
Crumple zones
The crumple zones of cars are normally at the front because it is estimated that 65% of the car impacts occur on the front side. The crumple zone is aimed at absorbing the impact of a crush to secure the passengers.
You would have to crash to use them.