Chap 13
activity 13.5 class-10

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.

Examples of states of consciousness include a. daydreaming b. dreaming during sleep c. hypnosis d. all of the above