[Solved] 21 Physics Questions (Please put in word document)

1.

Use the following photoelectric graph to answer the following question:

Graph titled Photoelectric Effect for a Photomissive Metal is shown. The y axis is labeled kinetic energy and scales from negative 2 to positive 4 electron volts. The x axis is labeled frequency from 0 to 11 times 10 to the 14 hertz. A straight line connects the points 0, negative 1.2 and 5.5, 1 and 9, 2.5.

What is the threshold frequency of the experimental photo-missive material? (5 points)

9.0 E14 Hz
5.5 E14 Hz
2.9 E14 Hz
0.5E 14 Hz
2.

Use the following photoelectric graph to answer the following question:

Graph titled Photoelectric Effect for a Photomissive Metal is shown. The y axis is labeled kinetic energy and scales from negative 2 to positive 4 electron volts. The x axis is labeled frequency from 0 to 11 times 10 to the 14 hertz. A straight line connects the points 0, negative 1.2 and 5.5, 1 and 9, 2.5.

If you use a different experimental photo-missive material, what would be the same on the graph? (5 points)

The y-intercept
The intercept
The slope
3.

Use the following half-life graph to answer the following question:

A graph titled half-life graph of a radioactive isotope is shown with mass remaining on the y axis from 0 to 60 grams and time on the x axis from o to 6 minutes. A curve connects the points 0, 50 and 1, 25 and 2, 12.5 and 3, 6.25 and 4, 3.125 and 5, 1.5625

What is the half-life of the isotope? (5 points)

1.0 min
3.0 min
5.0 min
6.0 min
4.

Use the following half-life graph to answer the following question:

A graph titled half-life graph of a radioactive isotope is shown with mass remaining on the y axis from 0 to 60 grams and time on the x axis from o to 6 minutes. A curve connects the points 0, 50 and 1, 25 and 2, 12.5 and 3, 6.25 and 4, 3.125 and 5, 1.5625

When you are left with 6.25 mg of the radioactive isotope, how many half-lives have occurred from time equals zero? (5 points)

1
3
6
12
5.

Use the following half-life graph to answer the following question:

A graph titled half-life graph of a radioactive isotope is shown with mass remaining on the y axis from 0 to 60 grams and time on the x axis from o to 6 minutes. A curve connects the points 0, 50 and 1, 25 and 2, 12.5 and 3, 6.25 and 4, 3.125 and 5, 1.5625

When you are left with 6.25 mg of the radioactive isotope, how many minutes would have passed from time equals zero? (5 points)

1.0 minutes
3.0 minutes
6.0 minutes
12 minutes
6.

Put the following in ascending order of mass: (5 points)

Proton, neutron, electron
Electron, neutron, proton
Proton, electron, neutron
Electron, proton, neutron
7.

Which equation below would you use to determine the number of neutrons in a given nucleus when you are given the atomic number (Z) and atomic mass (A)? (5 points)

N = A + Z
N = A/Z
N = AZ
N = A – Z
8.

The nuclear force that binds the nucleons together in the atom is relatively (5 points)

weak and has a long range
strong and has a long range
weak and has a short range
strong and has a short range
9.

Which particle will not be affected by the presence of an electric field? (5 points)

Alpha
Beta+
Beta-
Neutron
Proton
10.

During nuclear fission, energy is released as a result of (5 points)

a light nucleus splitting
a heavy nucleus splitting
the joining of heavy nuclei
the joining of light nuclei
11.

A neutral atom of aluminum has 14 neutrons and 13 protons. How many electrons does this aluminum have? (5 points)

1
13
14
27
12.

Isotopes of the same element always have the same (5 points)

AMU number
A-number
Z-number
13.

The magnitude of the charge on an electron compared to the magnitude of the charge on a proton (5 points)

is greater
is smaller
is the same
14.

Wave interference (5 points)

is a property of light
occurs when light and water interact
is a property of all waves
15.

Match the parent nuclei with the daughter nuclei. (4 points)

1. 234 90 Thorium plus 4 2 Helium
2. 234 91 Protactinium plus 0 negative 1 electron
3. 7 4 Beryllium plus 0 negative 1 electron
4. 222 86 Radon plus 4 2 Helium
a. Thorium234
b. Lithium7
c. Radium226
d. Uranium238
16.

Match the elements with the number of neutrons. (4 points)

1. 39 19 Potassium
2. 88 38 Strontium
3. 14 6 Carbon
4. 127 53 Iodine
a. 8
b. 74
c. 50
d. 20
17.

Match the terms with their definitions. (4 points)

1. Element
2. Photon
3. Isotopes
4. Nuclear fission
a. Atoms with same atomic number but different mass numbers
b. Splitting of an atom into two or more parts
c. A bundle or quantum of light
d. An atom with a unique number of protons
18.

The electron has the positron as its antiparticle. (5 points)

True
False
19.

Rutherford’s Gold Foil experiment gave evidence that an atom is mostly empty space. (5 points)

True
False
20.

Calculate the binding energy per nucleon of the Boron isotope B-10, which has a nuclear mass of 10.012937 u.

Remember to identity all of your data, write the equation, and show your work.

Mass of Proton: 1.007825 u
Mass of Neutron: 1.008665 u
1 u = 931.5 MeV (5 points)

21. In your own words, explain the effects of time dilation.

Did not find what you wanted? Get help from our experts.

Find a Perfect and Reliable Professional Essay Writer Helper to write your essay for a Reasonable Price.

best essay writing service

Need help with your Assignment?

Give us your paper requirements,and we’ll deliver the highest-quality essay at only $13 a page.

Some of the free features you will receive:

Find a perfect and reliable professional for your essay writing needs.

Essay Writing Services

If you are a student who is struggling to meet tight deadlines, we are here to help! Do you need to employ an essay writing service? Hire us if you want the best essays. We are a dedicated staff of professional, well-seasoned, and superb essay writer helpers.

Dissertation Writing Services

Did you know we provide the best dissertation writing service on the internet? We continue to receive favorable feedback from our consumers about the excellent work we produce. So, instead of worrying about whom to pay for the dissertation, contact us. We are a dedicated staff of professional, well-seasoned, and superb essay writer helpers.

Assignment Writing Services

We attempt to provide the essay help you require ensuring, that your papers are of the highest quality. When you decide to work with us, we assess your requirements and find the best writer to assist you with your essay. We are a dedicated staff of professional, well-seasoned, and superb essay writer helpers.

Nursing Essays Writing Services

Here’s how it works: you place an order for a nursing essay, and we deliver. It’s as easy as it sounds. This is workable because we have the greatest professional paper writers that are both quick and skilled. We will assign your assignment to the most qualified writer

Coursework Writing Help

Our staff of qualified and professional paper writers has continuously distinguished us as the best coursework writing help service. They are all-natural English speakers with advanced degrees in a variety of professions. We offer the best essay writing services.

Article Writing Services

Our knowledgeable and expert article writing paper writers have advanced degrees in a variety of subjects. We will assign the most appropriate one to you based on the field and topic of your article review. They are all fluent English speakers who fully grasp your requirements. We are a dedicated staff of professional, well-seasoned, and superb essay writer helpers

You May Also Like…

Violence in Sports Essay Sample

Violence in Sports Essay Sample

Violence in Sports Essay Sample From an outsider's perspective, it is hard to understand the social aspect of a sports...