- 1. Sketch each of the following showing the positive and negative charges; (3) a. A balloon that is neutrally charged b. A rubber duck that is negatively charged c. A wool sweater that is positively charged
- A part has been MT yoke inspected in the shop and is subjected to demagnetiz ation after testing per MT -1. A reading of 4 gauss is noted after the demagnetiz ation process. What action should the technician take? a. Demagnetize the part again until the value is less than 0. b. Demagnetize the part again until the value is 3 gauss or less. c. Re-magnetize the part in the opposite direction to cancel the field. and then demagnetize the part again until the value is less than 2 gauss. d. Demagnetize the part again until the value is I gauss or less.
- 9. If a weight has 500 J of potential energy when it is at height, how much kinetic energy would it have just as it hit the ground?
- 9. If a weight has 500 J of potential energy when it is at height, how much kinetic energy would it have just as it hit the ground? 10. The same weight as in #9, how much kinetic energy would it have halfway to the ground? How much potential energy?
- Physics O1: Energy and Conservation of Energy __ 1. Energy cannot be a. observed directly. b.transferred. c. transformed. d. conserved. __ 2. A bouncing ball has a. mechanical kinetic energy. b. thermal kinetic energy. c. gravitational potential energy. d. all of the above. __ 3. Sound energy travels as a. an electromagnetic wave. b. a pressure wave. c. a water wave. d. a transverse wave. 4. When a baseball is struck with a baseball bat, some mechanical kinetic energy is transformed into a. sound energy, chemical potential energy, and thermal energy. b. elastic potential energy.sound energy, and thermal energy. c. electrical energy, sound energy, and chemical potential energy. d. elastic potential energy, electrical energy, and thermal energy. 5. A cyclist converts chemical potential energy into __ to move a bicycle This transformation also produces other forms of energy such as __ a. elastic potential energy.sound energy b. sound energy, mechanical kinetic energy c. mechanical kinetic energy thermal energy d. mechanical kinetic energy, electric kinetic energy __ 6. A soccer player kicks a ball. Consider the system of the player and ball (together), in this process energy is: i) transferred, ii) transformed,iii) conserved, iv) lost. Which of the following is the most correct answer for the energy changes of the system? a. transferred and conserved. b. transferred, transformed, and lost. c. transformed and lost. d. transferred and transformed 7. The amount of gravitational potential energy an object has depends on the mass of an object,the acceleration due to gravity, and a. the velocity of the object. b. the height of the object. c. the type of object. d. the energy of the object.
