Final Exam Review Guide Answers

Final Exam Study Guide Answers.
*not all answers are on here, some excluded*
DON'T FORGET TO STUDY YOUR ASTRONOMY AS WELL!
ESPECIALLY STARS/THE SUN.

Page 1

1) a) 3
b) 5
c) 2
d) 3
e) 2

2) a) 270.00
b) 143
c) 87.2
d) 1.3 x 10^14
e) 2.0 z 10^14
f) 7 x 10^6

3) d) 7.56 x 10^-4
e) 0.0044
f) 13,000


Page 2

6) a) 10
b) 3
7) 7s
8) 7.6 m/s down
9) 1000 N
10) 1000 N
11) 25 N
12) 530 N
13) 1 x 10^-7
15) 1700 m
16) 0.9 m/s
17) 2.5 m/s


Page 3

18) force acts on it
19) momentum transferred


Page 4

2) 20 A will allow less current through
3) Same (full voltage) because it is a parallel circuit. Each device gets the full voltage of the battery.
4) 24 x 2.2= 52.6 volts
5) 4.0W/12V= o.3 amps
6) 45/0.38= 118.4 volts; V=IR so R=V/I so 118.4V/0.38= 312 ohms
7) So others remain on if one fails


Page 5

1) continous/visible spectrum
2) gamma
3)photon
4) violet
5) refraction
6) potential; kinetic
7) work; force
8) watt; joule
9) renewable
10) 4x

1) See bottom of pg. 96 in book
2) Equal
3) perpendicular for transverse; parallel for longitudinal
4) light behaves like particles
5) energy of atom executes electron and moves up level(s) as electron drops and emits photon
6) radiant- from sun
electromagnetic- em waves electric, magnetic fields
thermal- heat
nuclear- nucleus energy, sometimes particles
7)a) sound waves are longitudinal, slower, and compress matter. Light waves are electromagnetic, faster, and photons.
b)renewable- can be regrown; nonrenewable- replenishing takes 1,000,000+ years
c) work is FxD; power is W/T


Page 6

1) 67 degrees
2) 22.0 kilograms
3) 4.4 x 10^-18 joules
4) 19.3 hertz
5) 0.2 m
6) 4.75 m
7) 4.2 x 10^17 hertz
8) 1.44 x 10^18 joules
9) 15 m/s
10) 0 joules
11) 100 joules