Turn on thread page Beta

Physics- conservation and dissipation of energy watch

    • Thread Starter

    A student pushes a trolley of weight 150N up a slope of length 20m. The slope is 1.2m high.
    If the student pushed the trolley up the slope at constant speed, explain why all the work done by the student was not transferred to the gravitational potential energy store of the trolley. [3 marks]

    (Its taken from the AQA GCSE Physics book by OXFORD)
    Pls help

    Did u get ur answer? Because I have the same question
    • Thread Starter

    (Original post by Plantsarelife)
    Did u get ur answer? Because I have the same question

    Hi, yes, i figured out that some work done would convert to sound energy due to the wheels squeeling when they spin, to heat energy due to the wheels causing friction.

    Hope this helps, Tomas

University open days

  1. University of Cambridge
    Christ's College Undergraduate
    Wed, 26 Sep '18
  2. Norwich University of the Arts
    Undergraduate Open Days Undergraduate
    Fri, 28 Sep '18
  3. Edge Hill University
    Faculty of Health and Social Care Undergraduate
    Sat, 29 Sep '18
Which accompaniment is best?
Useful resources

Study tools


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.


Make study resources

Create all the resources you need to get the grades.


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.


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