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Question 1: What happens to the passenger when a moving car crashes and suddenly stops?

Answer: When a moving car crashes and stops suddenly, the passenger's body keeps moving forward because of Newton's First Law of Motion. This law is also called the law of inertia, which means that an object in motion will stay in motion unless something stops it. If the passenger is not wearing a seatbelt, their body can be thrown forward and hit the dashboard or windshield. Seatbelts are designed to stop the body safely and reduce the risk of serious injury.

Question 2: How do car safety features help reduce the force during a crash?

Answer: Seatbelts help by spreading the force of the crash across stronger parts of the body like the chest and hips. They also increase the time it takes for the body to stop moving. According to Newton's Second Law of Motion, the force is smaller if the stopping time is longer. This means the seatbelt reduces the amount of force your body feels in a crash.

Question 3: Why are some parts of a car made to crumple in a crash (like the front and back)?

Answer: These crumple zones are designed to absorb some of the energy from the crash. They break or fold on purpose so the force does not go straight to the passengers. By doing this, the car reduces the impact on people inside. It also gives the seatbelt and other safety systems more time to work and protect the passengers.

Question 4: If a car slows down before crashing, how does this affect the force on the body?

Answer: If a car slows down before the crash, there is less force on the body during the impact. Newton's Second Law tells us that less speed means less acceleration, so the force is smaller. Slowing down gives the seatbelt a better chance to hold the person safely and avoid serious injuries.

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Question 1: What happens to the passenger when a moving car crashes and suddenly stops?

When a car crashes, the passenger will keep moving forward due to inertia (Newton’s 1st Law). With no airbag, the passenger would hit the steering wheel with full impact. But with an airbag, the passenger would hit a soft, expanding cushion instead that prevents direct collision with hard surfaces.

Question 2: How do car safety features help reduce the force during a crash?

Airbags reduce the force by inflating quickly and increasing the time it would take for the passenger to stop. This lowers the acceleration and spreads force over the passenger’s head and chest, instead of it being solely focused on one spot. Thats the reason why injuries are less severe when airbags deploy.

Question 3: Why are some parts of a car made to crumple in a crash (like the front and back)?

Crumple zones and airbags work together like a team. While the crumple zones initially absorb energy around the car, the airbags do too but inside. These crumple zones reduce the speed of an impact, giving the airbag enough time to inflate and protect the passenger.

Question 4: If a car slows down before crashing, how does this affect the force on the body?

If the car is slowing down, the passenger isn’t moving as fast. That means the airbag has less force to deal with, so it can protect the passenger more easily and safely.

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Q1. What happens to the passenger when a moving car crashes and suddenly stops?

-When a car suddenly crashes and stops, the passenger continues moving forward due to Newton's First Law of Motion (inertia): an object in motion stays in motion unless acted upon by an external unbalanced force. If not properly restrained or stabilized, the passenger can be thrown forward inside the car, leading to injury.

Q2. How do car safety features help reduce the force during a crash?

-Stability control helps prevent loss of control by automatically applying brakes to individual wheels, keeping the car on its intended path. By preventing skids and rollovers, it ensures that forces from a crash are distributed more safely and helps avoid abrupt changes in direction or speed, which would increase the force exerted on the passengers (Newton’s Second Law: F=maF=ma).

Q3. Why are some parts of a car made to crumple in a crash (like the front and back)?

-While stability control may not directly cause crumpling, it works with features like crumple zones to maximize safety. Crumple zones are designed to deform in a crash to lengthen the time over which the car stops, thereby reducing acceleration and the force experienced by passengers (Newton’s Second Law). Stability control aims to prevent loss of control so that the crash happens in a controlled manner where crumple zones can work effectively.

Q4. If a car slows down before crashing, how does this affect the force on the body?

-If stability control intervenes and slows the car before an impact, the car’s velocity is reduced. According to Newton’s Second Law, a lower velocity means less acceleration needed to stop, and therefore less force is transferred to the passenger’s body. Controlled braking leads to lower forces and a reduced risk of injury.

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Question 1: What happens to the passenger when a moving car crashes and suddenly stops?

When a car crashes and suddenly stops, the passenger keeps moving forward due to the law of inertia (Newton's First Law of Motion). It is where an object will stay at rest unless an external force acts upon on it

Question 2: How do car safety features help reduce the force during a crash?

Braking systems are designed to stop or slow down a vehicle by converting kinetic energy into heat with friction. It also allows the driver to control the vehicle's speed, reducing injuries and preventing accidents.

Question 3: Why are some parts of a car made to crumple in a crash (like the front and back)?

Crumple zones are designed to help prevent injuries from the passengers. They help by using the front and the back of a vehicle to take the main force so it will not reach the passengers.

Question 4: If a car slows down before crashing, how does this affect the force on the body?

If the passenger uses the braking system to slow down a car, the force on the body is smaller. Making it more safe for the passengers since slow crash means less injuries and accidents.

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Question 1: What happens to the passenger when a moving car crashes and suddenly stops?

Answer: When a car suddenly stops due to a crash, the passenger will keep moving at the direction the car was moving because of the law of Inertia (Newton's First Law of Motion). The law indicates that the passenger should keep moving towards the direction of the car if no external force stops its motion. The crumple zones serve a great purpose as they crumple in a crash to absorb and spread the energy and minimize the force experienced by the passenger and lessen chances of injuries.

Question 2: How do car safety features help reduce the force during a crash?

Answer: Crumple zones reduce the force during the crash by deforming/crumpling and absorbing the kinetic energy. They work by increasing the time over which the collision impact occurs, thus reducing the full force experienced by passengers and minimizing injury risk.

Question 3: Why are some parts of a car made to crumple in a crash (like the front and back)?

Answer: These parts that are made to crumple are called crumple zones. They absorb kinetic energy through deformation. They are designed to crumple to increase the time over which the collision happens to reduce the force exerted on the car and it's occupants. This works due to Newton's second law and the Impulse-Momentum Theorem, where increased time equals to lesser force and vice versa.

Question 4: If a car slows down before crashing, how does this affect the force on the body?

Answer: If the car slows down before crashing, then the car and it's occupants will have lesser momentum and kinetic energy at the moment of impact which means the crumple zones have lesser energy to absorb and spread out, leading to minimal force experienced by the occupants and lesser chances of injuries.