Testing Safety Mechanisms in Model Cars

In this video, Nobby introduces an experiment to test safety mechanisms in model cars using table tennis balls as drivers. Three safety systems are tested: a cushion system, a seat belt system, and a crumple zone. Each system fails to keep the driver safe, leading to discussions on potential design improvements. The video concludes with suggestions for enhancing each safety mechanism to better protect the drivers.

Which material is used in the cushion system of car one?

• Bubble wrap

• Rubber bands

• Cotton balls

• Cardboard

What is the main objective of the investigation in the Twig Science Lab video?

• To evaluate the safety mechanisms of model cars

• To build the fastest model car

• To test the speed of model cars

• To design a new type of car engine

What is the purpose of the rubber band in car two's safety mechanism?

• To act as a seat belt

• To increase car speed

• To cushion the impact

• To crumple upon collision

What was the outcome of the cushion system test?

• The table tennis ball flew out of the car

• The cushion system absorbed all the energy

• The table tennis ball remained in the car

• The car did not hit the wall

What was observed during the test of the restraining system?

• The car did not slow down

• The table tennis ball flew out of the car

• The rubber band did not stretch

• The table tennis ball was safely secured

What was the expected function of the crumple zone in car three?

• To increase the car's speed

• To absorb the impact energy

• To act as a seat belt

• To cushion the driver

What was the result of the crumple zone test?

• The car did not hit the wall

• The crumple zone did not crumple

• The table tennis ball remained in the car

• The crumple zone absorbed all the energy

What improvement was suggested for the cushion system?

• Increasing car speed

• Adding more cotton balls

• Removing the cushion system

• Using bubble wrap

What additional feature was suggested for the restraining system?

• Removing the seat belt

• Using a larger rubber band

• Increasing car weight

• Adding a second seat belt

What was the overall conclusion from the tests?

• The cars did not hit the wall

• All safety mechanisms were successful

• The table tennis balls were safe

• The designs need improvement