39. In order for current to flow in a circuit, you must have 40. Electrical resistance is measured in 41 As more lamps are put into a parallel circuit, the overall current in the circuit 42. When one light bulb in a parallel circuit containing several light bulbs burns out, the other light bulbs The total resistance of a 10-ohm resistor and a 7-ohr resistor in series is 44. The total resistance of a 6-ohm resistor and a 12-Ohm resistor in parallel is 45. Two electric dev rent in the circuit is 46. An Ampere is 47. The matric unit of a joule () is a unit of 48. The law of conservation of energy states that 40 Potential energy is energy due to the: 50. A 70 kg skateboarder has a gravitational potential energy of 100 J at the top of the ramp. How much kinetic energy does he have at the bottom of the ramp (if it touches the ground)? 51. You are in a swing set. If you are co energy transfer? 52. Assume you are in a roller coaster height of four different points. Point A is at 50 meter, point B is at 25 meter, point C is at 75 meter and point D is at 100 meter. Which point has the LEAST potential energy? 53. You are in a ski resort in the half-pipe ( up with some friends. Which spot(s) will have the most kinetic energy? 54. A body of mass 2 ky is dropped from a hei as it touches the ground is 55. A man of mass 50 kg jumps to By at the highest point is