Physics review Final 2014.docx

8/12/2019 Physics review Final 2014.docx

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Physics review Final

Name __________________________ Period___________

1. Draw a series circuit with a 12v battery and 2 resistors, one of 10, another of 20.

a. What is the current of the circuit that you just drew?

2. List 4 conductors and 4 insulators of electricity

a. E.

b. F.

c. G.

d.

H.

3. How can you increase the number of electrons coming off of a piece of metal being hit with photons?

(HintPhotoelectric Effect)

4. Draw a parallel circuit with 2 resistors a switch and a battery.

a. What are two ways to increase the current in a circuit? V=I*R

5.

It is believed that light acts act like a particle (bounces off things) and like a wave. What experiment proveslight a wave?

6. Describe what the following scientist discovered about particle physics.

a. Einstein

b. Bohr

c. Fermi


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7. Give a completeexplanation as to why heat naturally travels from a point of high temperature to one of

low temperature. (Laws of Thermodynamics)

8. Define the Following terms:

a) Oscillation_________________________________________________________________________

_________________________________________________________________________________

b)

Frequency__________________________________________________________________________________________________________________________________________________________

c) Apparent Frequency_________________________________________________________________

_________________________________________________________________________________

d) Wavelength________________________________________________________________________

_________________________________________________________________________________

e) Amplitude_________________________________________________________________________

_________________________________________________________________________________

f) Equilibrium_________________________________________________________________________

_________________________________________________________________________________g) Transverse Wave____________________________________________________________________

_________________________________________________________________________________

h) Longitudinal Wave___________________________________________________________________

_________________________________________________________________________________

i) Incident Wave______________________________________________________________________

_________________________________________________________________________________

j) Resonance_________________________________________________________________________

_________________________________________________________________________________

k)

Refraction___________________________________________________________________________________________________________________________________________________________

l) Reflection - __________________________________________________________________________

_________________________________________________________________________________

9. Please explain how the following medical test work.

a. X-rays

b. Positron emission tomography (PET) scan

c.

MRI

10.Explain the difference between fusion & fission

11.What is the difference between the strong nuclear force and the weak nuclear force? Include which one

holds atoms together and explain why we only have a total of 92 elements.


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12.Find the total resistance of the circuit to the right if

R1= 20, R2= 25, and R3 = 30.

Find the total current if the battery is a 6V

battery

13.Find the total resistance of a toaster that draws 25 watts of power when connected to a 120-volt circuit.

14.How many seconds does it take a 45 W light bulb to do 500 J of work?

15.What is the primary reason that metals are such a good conductor of electricity?

16.Who gave us the name for the smallest particle of light? And what is that name?

17.In the photoelectric effect, how does the frequency of the light affect the number of electrons being

ejected by a piece of metal being hit by that light?

18.The fat lady at the opera just caused a crystal glass to break using just her voice. What is this an example of

and how does it work?

19.Draw a diagram of a light wave passing from air to water. Label the incident ray, refracted ray, normal line,

angle of incidence and angle of refraction.

20.Define Doppler Effect, and give an example of it.


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21.What are constructive interferenceand destructive interference?

22. Label each situation as constructive or destructive. Draw the resulting wave when the following waves are

combined:

23.Describe how a fiber optic cable works and explain how it could be used in a medical examination.

24.Draw an example and Describe how vibrations are relative to direction:

a. Transverse waves

b. Longitudinal waves

25.What is entropy? Give an example of increasing entropy.

26.Draw a transverse wave with an amplitude of 10 cm and a wavelength of 12cm.

27.You have a wave moving forward at 6m/s and a wavelength of 12m. What is the frequency of this wave.

28.What happens to the movement of water molecules as the water heats up? What does this do to the

kinetic energy of each molecule?


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Physics review Final 2014.docx