c The box passes over a rough patch in the floor and the box slides in a straight line with a constant velocity. Cambridge International AS and A Level Physics Workbook with CD-ROM (Cambridge International Examinations) [2 ed. c State whether the voltmeter and the ammeter used in your circuit should have a low or a high resistance. in terms of the energy transferred by a source in driving unit charge around a complete circuit distinguish between e.

a State how you can obtain a stationary wave on the string and how you would recognise the positions of nodes and antinodes.C. 5 Calculate the number of electrons in a beam hitting the screen of a TV tube each second when the beam current is 1. d Calculate the work done on the child by this force as she moves from the top of the slide to the bottom. if a cell produces a current in the opposite direction to the current you have drawn around the loop. m. This light cannot be detected by the human eye on Earth as the violet light is shifted into the infra red part of the spectrum. Use the graph to deduce: a the displacement of the runner after 75 s b the time taken by the runner to complete the first 200 m of the race c the runner’s velocity.

Sketch a graph to show how the Earth’s gravitational potential ϕ varies as an object is moved away from its surface. The Cambridge International AS and A Level Physics Workbook with CD-ROM supports students to hone the essential skills of handling data, evaluating information and problem solving through a varied selection of relevant and engaging exercises and exam-style questions. a Copy the diagram and add an arrow to show the direction of the Earth’s gravitational force F on the object.Fully revised and updated content matching the Cambridge International Examinations 9702 syllabus for first examination in 2016. N kg−1) b In the right-hand diagram, a positive charge of +20 C is being pushed from C to D through a potential difference of 2. a Rearrange the formula E = V + Ir to find expressions for the gradient of the graph and for the y-intercept of the graph in terms of E and r.