Rutherford’s Model of the atom

Rutherford’s Experiment (animation)

Crash Course: The history of atomic theory

 

 

Assignment:  Write a 1 page (minimum) essay on the history of the atomic theory. Include a timeline of the 3 most important scientific discoveries that led to Rutherford’s experiment and identify the scientists or philosophers who made these contributions.

Describe Rutherford’s experiment – this can be in words or an annotated diagram. Describe what Rutherford expected to find and why (what model of the atom was Rutherford trying demonstrate?)  Describe what Rutherford actually observed.  State Rutherford’s conclusion and discuss how Rutherford’s model of the atom is supported by his experimental results.

This essay may be hand written or printed or typed.

Motion in 1 dimension- Part 1

Learning Objective: Understand motion, velocity and speed

Vocabulary:
displacement
velocity
average velocity
speed
scalars and vectors

How is velocity measured?

Now calculate Big Daddy Don Garlitz’ average velocity by converting 0.25miles/5.40sec into miles per hour.

(0.25miles)/(5.40sec) x (3600sec/hr) = 166 mph
Why is this different than the 270 mph recorded top speed?

HOW TO REGISTER ON MATH-SCIENCE-RESOURCES.COM

How to register on math-science-resources.com

Step 1:

  • sign in to a school computer using your normal student login and password
  • open a browser window or tab and go to math-science-resources.com
  • scroll down to the ‘meta’ section in the left hand navigation bar, click on ‘REGISTER’
  • enter a username, your username must be your last name space first name – no commas or other characters
    example: Bryant Kobe

    • IMPORTANT- you only get one chance at this. DO NOT use a NICKNAME !
  • enter your student email address
  • a temporary password will be sent to your email

Step 2:

  • open your email, select and copy the temporary password
    go back to math-science-resources.com/register
    enter your username and password
  • click on profile in the left hand nav bar
  • fill out the profile page – you must fill in fields for your first name and last name your display name is the same as your user name
  • in the biographical data section enter school, subject, period, and year
    LAAAE Biology
  • change your password
    Please use the same password you normally use for school software accounts such as your gmail

Step 3:

  • scroll to the bottom of the profile page and click ‘update profile’