1 of 9. According to Newton's third law of motion, reaction forces are directly proportional to mass. a. True b. False 10. The latent heat of vapourization indicates the amount of energy required per kilogram to change the state from liquid to solid. a. True b. False 1 1. The magnetic field in a transformer is caused by an electric current through the secondary coils. a. True b. False 12. Conventional current has the same direction as the electron flow, from the negative to the positive terminal. a. True b. False 13. In a simple bar magnet, magnetic field lines are outward from the South Pole and inwards to the North Pole. a. True b. False 14. The motor principle says that a current carrying conductor across an external magnetic field experiences a force perpendicular to both. a. True b. False 15. In a vacuum in which air resistance is negligible, dropping a mass of 5kg and one of 15 kg at the same time and from the same height, will have what result: a. The 15 kg mass will reach the ground first b. They will not reach the ground as there is no gravity in a vacuum c. They will reach the ground at the same time d. d. It would depend on the shape of the mass as radius will affect it 16. After being hit, a puck slides across the ground decreasing speed until it eventually comes to a stop. Which of the following indicate all forces acting on the puck while in motion? (After being hit) a. The force of gravity, normal force and static friction . b. The force of gravity and the normal force c. The force of gravity, normal force, and kinetic friction d. The force of gravity, normal force, applied force, friction 17. In one type of radioactive decay, there is a high-energy particle released, called a photon, as the excited nucleus returns to a lower, more stable energy state. Which process is this: a. Alpha Decay c. Beta Negative Decay b. Beta Positive Decay d. Gamma Decay 18. The energy stored within a battery is a. Chemical Potential Energy c. Electrical Energy b. Nuclear Energy d. Kinetic Energy