Turn on thread page Beta
    • Thread Starter
    Offline

    4
    ReputationRep:
    Please can someone help me with my homework

    Explain why it is safer for a car driver to be wearing a seat belt, compared with not wearing a seat belt if the car is involved in a collision

    thanks
    Offline

    19
    ReputationRep:
    hiii I'm doing a physics mock too soon and I'm revising for this topic!

    basically, when you wear a seat belt:

    Seat belts stop you tumbling around inside the car if there is a collision. However, they are designed to stretch a bit in a collision. This increases the time taken for the body's momentum to reach zero, so reduces the forces on it.

    Well this is what bitesize told me lol

    I hope it helped!
    • Thread Starter
    Offline

    4
    ReputationRep:
    (Original post by rayestar)
    hiii I'm doing a physics mock too soon and I'm revising for this topic!

    basically, when you wear a seat belt:

    Seat belts stop you tumbling around inside the car if there is a collision. However, they are designed to stretch a bit in a collision. This increases the time taken for the body's momentum to reach zero, so reduces the forces on it.

    Well this is what bitesize told me lol

    I hope it helped!
    Thanks
    Appearently this and plum pudding comes up in the mock(people from other sets told me. I have my mock on thursday
    Offline

    19
    ReputationRep:
    (Original post by candyflossgirl)
    Thanks
    Appearently this and plum pudding comes up in the mock(people from other sets told me. I have my mock on thursday
    ahh okaii thanks for the info
    I have a chemistry mock on thursday!
    Offline

    16
    ReputationRep:
    seatbelts reduce injury in a crash by increasing the time taken for the driver to stop moving so reduce the rate of change of momentum
    the kinetic energy from the force of the crash is absorbed by the seatbelt and transferred to elastic energy which increases the distance travelled by the driver ( as the seatbelt is stretched) and so reduces the acceleration therefore, because of F=ma, this reduces the stopping force on the driver.

    i think that's all you need to know at GCSE level
 
 
 

University open days

  1. Loughborough University
    General Open Day Undergraduate
    Fri, 21 Sep '18
  2. University of Cambridge
    Churchill College Undergraduate
    Fri, 21 Sep '18
  3. Richmond, The American International University in London
    Undergraduate Open Day Undergraduate
    Fri, 21 Sep '18
Poll
Which accompaniment is best?
Useful resources

Study tools

Rosette

Essay expert

Learn to write like a pro with our ultimate essay guide.

Thinking about uni already?

Thinking about uni already?

See where you can apply with our uni match tool

Student chat

Ask a question

Chat to other GCSE students and get your study questions answered.

Creating

Make study resources

Create all the resources you need to get the grades.

Planner

Create your own Study Plan

Organise all your homework and exams so you never miss another deadline.

Resources by subject

From flashcards to mind maps; there's everything you need for all of your GCSE subjects.

Papers

Find past papers

100s of GCSE past papers for all your subjects at your fingertips.

Help out other students

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.