09P Oscillations problem set NJC 2025 solutions

NATIONAL JUNIOR COLLEGE 1 9749 H2 Physics [2025-26] © 2025 National Junior College All Rights Reserved. No part of this publication may be produced or transmitted in any form or by any means, electronic or me chanical, including photocopy,recording or any other information storage and retrieval system, without prior permission in writing from the copyright owner. Oscillations Problem Set P1 Determine whether or not the following quantities can be in the same direction for a simple harmonic oscillator: (a) displacement and velocity, (b) velocity and acceleration, (c) displacement and acceleration. P2 2018 P1 Q15

NATIONAL JUNIOR COLLEGE 2 9749 H2 Physics [2025-26] © 2025 National Junior College All Rights Reserved. No part of this publication may be produced or transmitted in any form or by any means, electronic or me chanical, including photocopy,recording or any other information storage and retrieval system, without prior permission in writing from the copyright owner. P3 2020 P1 Q16 P4 2014 P3 Q2

NATIONAL JUNIOR COLLEGE 3 9749 H2 Physics [2025-26] © 2025 National Junior College All Rights Reserved. No part of this publication may be produced or transmitted in any form or by any means, electronic or me chanical, including photocopy,recording or any other information storage and retrieval system, without prior permission in writing from the copyright owner.

NATIONAL JUNIOR COLLEGE 4 9749 H2 Physics [2025-26] © 2025 National Junior College All Rights Reserved. No part of this publication may be produced or transmitted in any form or by any means, electronic or me chanical, including photocopy,recording or any other information storage and retrieval system, without prior permission in writing from the copyright owner. P5 At Liverpool the tide is nearly sinusoidal and has a period of 12 hours 40 minutes. On a day when the height of high tide above low tide is 7.4 m, determine (a) the length of time within a cycle during which the water is more than 5.0 metres above low tide. (A ship's captain must be aware of the depth of water his ship requires and he needs to be able to do this type of calculation from tide charts to ascertain that it is safe.) (b) The rate at which the tide is rising or falling when the water is 5.0 metres above low tide. P6 2013 P1 Q15 The graph shows how the sea level varies with time at Liverpool. The zero (equilibrium position) of the sea level axis is taken at the mid-tide level.

NATIONAL JUNIOR COLLEGE 5 9749 H2 Physics [2025-26] © 2025 National Junior College All Rights Reserved. No part of this publication may be produced or transmitted in any form or by any means, electronic or me chanical, including photocopy,recording or any other information storage and retrieval system, without prior permission in writing from the copyright owner.