Identify the false statement a Energy can be transferred fro

Identify the false statement. (a) Energy can be transferred from one system to another as work and/or heat. (b) Potential energy can be transformed into kinetic energy (c) Kinetic energy depends on position (d) The larger the distance from an object to the floor, the larger its gravitational potential energy The shuttle bus in moving from the T station to the Campus Center (a)It has neither gravitational potential energy nor kinetic energy (b) It has gravitational potential energy but nor kinetic energy (c) It has kinetic but no gravitational potential energy (d) It has both gravitational potential energy and kinetic energy An object has fallen to the floor under the influence of gravity. It on top of the floor. Then (a) It has neither gravitational potential energy nor kinetic energy (b) It has gravitational potential energy but not kinetic energy (c) It has kinetic but no gravitational potential energy (d)It has both gravitational potential energy and kinetic energy The identity of an atom of a chemical element is given by (a) Its number of electrons (b) Its number of neutrons (c) Its number of protons (d) The sum of the number of protons plus the number of neutron One atom of^218_84 Po has (a) 218 protons, 84 neutrons, and 218 electrons (b) 134 protons, 218 neutrons, and 134 electrons (c) 84 protons, 84 neutrons, and 134 electrons (d) 84 protons, 134 neutrons, and 84 electrons Which one of these three ions has more protons? (a) Cr^+1 (b) Cr^-2 (c) Cr^+3 (d) All these ions have the same number of protons

Solution

5. c as kinetic energy = 1/2 mv² where m is the mass of the object and v is the velocity

6. d

7. b

8. a

9. d (84 electrons, 84 protons and (218-84) = 134 neutrons)

as number of protons= number of electrons. mass number = number of protons+ number of neutrons)