# CIRCLE OF KNOWLEDGE- LESSON PLAN HANDOUTS

TAG PORTFOLIO

HANDOUT - 1: MOMENTUM CONSERVATION- PRACTICE

HANDOUT- 2: ACCIDENT INVESTIGATION

HANDOUT- 3: QUESTIONING CUBE (print and fold into cube)
 A car driver weighing 60 kg moving at 25 m/s brakes to a sudden stop in 1.2 s. If the seat belt he wears slows him down to a stop in 3.4 s, what is the impact force on him and how does it compare to the force without a seat belt ? An egg dropped on a concrete floor breaks, while an egg dropped on a thickly carpeted floor survives the impact. Why ? How do crumple zones help reduce damage to occupants in a car during a crash ? Recall one advanced safety feature in cars of today and one safety feature in highway driving The traffic related deaths are more in the young adult population than in any other age group. What would be your suggestion to address this situation ? If you were designing a container with eggs to be dropped from a certain height , what strategies would you use to reduce the impact force ?

QUESTIONING CUBE-2

 When the driver of a speeding car suddenly brakes to a halt, what prevents the driver from being thrown through the windshield of the car ? What happens to the kinetic energy lost during an inelastic collision ? How do crumple zones help reduce damage to occupants in a car during a crash ? Why do they use loose gravel  and small incline for constructing truck escape ramps ? Airbags designed to protect the occupant of a car in a crash has sometimes resulted in causing injury by premature deployment. What is your take on air bags ? If you were designing a container with eggs to be dropped from a certain height , what strategies would you use to reduce the impact force ?

QUESTIONING CUBE - 3

 When the driver of a speeding car suddenly brakes to a halt, what prevents the driver from being thrown through the windshield of the car ? What happens to the kinetic energy lost during an inelastic collision ? How do crumple zones help reduce damage to occupants in a car during a crash ? Plastic Barrels of sand or water seen on highways in bright yellow color are used as a  impact barrier called the Fitch Barrier. How do they work ? Airbags designed to protect the occupant of a car in a crash has sometimes resulted in causing injury by premature deployment. What is your take on air bags ? How does momentum explain the role of a tackle in football ?