748341
Descrição
FlashCards por Adam Collinge, atualizado more than 1 year ago
|
Criado por Adam Collinge
mais de 10 anos atrás
|
|
| Questão | Responda |
| What do brakes do to slow down the car? | Work against the kinetic energy of the car |
| What do new regenerative braking systems do? | Instead of converting the kinetic energy into heat energy, they put the vehicles motor in reverse, which means the wheels are slowed. At the same time, the motor acts as an electric generator, converting the kinetic energy into electrical energy which is stored |
| How do regenerative brakes work? | They use the system that drives the vehicle to do the majority of the braking |
| Why is a car crash dangerous for people on the inside? | A lot of kinetic energy is being transferred in a short amount of time |
| How do airbags in cars make people more safe in a crash? | They slow you down more gradually, but also prevent hitting your body on something hard |
| What two factors determine how powerful a car is? | The size and design of a cars engine |
| Why do aerodynamic cars have a higher top speed? | Cars reach their top speed when resistance force equals the driving force outputted from the engine. So, with less air resistance to over come, the car can reach of a higher speed before this happens |
Quer criar seus próprios Flashcards gratuitos com GoConqr? Saiba mais.