[16 POINTS: 3 Physics Q’s] 9. What is the difference between contact forces and field forces?

11. As an object falls through Earth’s atmosphere, which statement correctly describes the energy change (assume no friction or drag)
A. The potential energy of an object decreases while the thermal energy increases.
B. The kinetic energy of the object increases while the elastic energy increases.
C. The potential energy of the object decreases while the kinetic energy increases.
D. The thermal energy of the object decreases while the kinetic energy increases.

12. Which of the following is true about the charge of an electron?
A. It is 1.602 x 10^-19 C, and the smallest unit of charge
B. It is -1.602 x 10^-19 and the smallest unit of charge.
C. It is -1.602 x 10^-9 , and it a multiple of the smallest unit of charge.
D. It is 1.602 x 10^-19, and it is a multiple of the smallest unit of charge.

*Thanks in advance* ❤️