Yo/Hello

Centre Number Surname Other Names Candidate Signature

Candidate Number

For Examiner’s Use

Examiner’s Initials

Question

Mark

General Certificate of Secondary Education Higher Tier June 2011

1 2 3 4 5 6 TOTAL

Science B
Unit Physics P1

PHY1H

Physics
Unit Physics P1 Friday 17 June 2011 1.30 pm to 2.15 pm

H

For this paper you must have:  a ruler. You may use a calculator.

Time allowed  45 minutes Instructions  Use black ink or black ball-point pen.  Fill in the boxes at the top of this page.  Answer all questions.  You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages.  Do all rough work in this book. Cross through any work you do not want to be marked. Information  The marks for questions are shown in brackets.  The maximum mark for this paper is 45.  You are expected to use a calculator where appropriate.  You are reminded of the need for good English and clear presentation in your answers. Advice  In all calculations, show clearly how you work out your answer.

(Jun11PHY1H01)

G/K67037

6/6/6

PHY1H

2 Answer all questions in the spaces provided.

Do not write outside the box

1

The diagram shows a simple type of portable shower. The water container is a strong plastic bag that is black on one side and white on the other. To warm the water, the bag is placed on the ground in direct sunlight, with the black side facing the Sun.

Black plastic

Anywhere water heater 20 litres

Water White plastic

1 (a) (i)

Name the process by which heat is transferred from the Sun to the outside of the bag. ............................................................................................................................................ (1 mark)

1 (a) (ii) Explain why the black side of the bag and not the white side should face the Sun.