10. The diagram below shows two charged spheres arranged to the left of a point in space labelled P. Use the information on the diagram to calculate the magnitude and direction of the net electric field at point P. (4 marks) q,=-6.751C T~~._ 245cm 20 [ ~:: p 20\\.- =" "2M45cm e wf 1. Define electric potential energy AND explain how it is similar to gravitational potential energy. (2 marks) 2. If 3.4 ) of work moves a negatively charged particle from the positive plate to the negative plate. How much potential energy did the particle gain? Explain why. (2 marks) 3. What is electric potential? How does it differ from electric potential energy? (2 marks) 4. Calculate the electric potential difference between two parallel plates 3.00 mm apart and an electric field of &80 V/m. {2 marks) 5. The potential difference between two parallel plates is 24.0 V and the uniform electric field between the plates is 80.0 V/m. Calculate the distance between the plates. {2 marks) 6. A student wanted to determine the relationship between the electric field strength and distance of a test charge from the source charge. The data is recorded in the table below. Distance of a test charge from Electric field strength a source charge (m) (x 10' N/C) 100 90.0 200 22.5 300 10.0 400 5.60 500 3.60 600 2.50 The student then graphed the data: Field strength vs. distance of test charge 100 0 75 0 50 0 Field strength (1014 NIC) 200 DOE 400 600 Distance of test charge (m) Use the curve straightening strategies found on the Physics 30 workbook p. 5 to demonstrate that the relationship between the electric potential and the distance is an inverse squared relationship. Your answer should include a) Complete the data table showing the modified manipulated variable (1 mark)\fPhysics 30: Assignmant 4 12 7. A battery is attached to two parallel metal plates. The plates are separated by 5.00 mm and produce an electric field of 500 V/m. Determine the electric field strength if the plates are moved to a separation distance of 3.00 mm. {1 mark) 8. A proton gains 1.76 x 10-15 J of kinetic energy as it passes through an electric field. Calculate the potential difference causing its acceleration. (2 marks) 9. a) Determine the maximum speed an alpha particle could obtain if it mowves from rest through a potential difference of 8.40 kV. Hint: see workbook p. 107 (2 marks) b) State the physics principle you used to solve this question (1 mark)