This is for p. e!

complete in the morning

start date:
day of the week:
day 1

day 2


i went to be last night at:

/am

/am

i got out of bed this morning at:
/am
/am

last night i fell asleep:
easily
after some time
with difficulty

easily
after some time
with difficulty

i woke up during the night
# of time
#of minutes





last night i slept a total of
hours:
hours:

my sleep was disturbed by: list mental or physical factors including noise, light, pets, allergies, temperature, discomfort, stress

when i woke up for the day, i felt
refreshed

somewhat refreshed

fatigued
refreshed

somewhat refreshed

fatigued

Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.