This chapter discusses that light sometimes acts like a photon. What is a photon?

a. a charged particle in the nucleus of every atom
b. a kind of magnetic substance found in reflective minerals
c. a self-contained "packet" of electro-magnetic energy
d. a kind of sound that is too high frequency for the human ear to hear
d. you can’t fool me. Einstein showed that photons were a mistake – they don’t exist.

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

4. a 75.0 g piece of ag metal is heated to and dropped into 50.0 g of water at the final temperature of the mixture is what is the specific heat capacity of silver? 5. a 465 g chunk of iron is removed from petrucci, ralph h.. general chemistry (p. 290). pearson education. kindle edition.