Determining Earth's Density  What is needed?  Density = Mass / Volume  Volume = 4/3 * pi * Radius 3  How do we determine these?  Two friends for.

Slides:



Advertisements
Similar presentations
Meaning of Pi 1 The Meaning & Use of Pi by Joseph A. Castellano, Ph.D.
Advertisements

Car Crash Lab.
Circles – Circumference and Area Circumference – the distance around a circle.
1 Calling within Static method /* We can call a non static method from a static method but by only through an object of that class. */ class Test1{ public.
Volume.
Density Lab Part One. Density Lab: Part One DESCRIBE Describe the color and the shape of the object using 2 words.
Time (s)012 Mass of car & bucket (kg) Mass of falling bucket (kg) Force of falling bucket (F = m x a (earth) ) (N) Acceleration of the system ( F = m.
Measurement. Volume – Regular Shaped Object You can find the volume of a solid by multiplying length, width, and height together. Formula : V = l x w.
PART 3 IN A SERIES OF “WHERE DO THOSE NUMBERS IN OUR BOOKS COME FROM?” Experiment #8: Estimating the Earth’s Density.
By Maria Bocanegra. The distance around a closed curved circle. WHAT IS CIRCUMFERENCE?
Definition: A circle is the set of all points on a plane that is a fixed distance from the center.
9.1 – 9.2 Exploring Circles Geometry.
  investigate the relationship between the diameter and circumference of a circle.
Density Lab: Draw and title this data table in your journal:
Thickness of Aluminum Foil Mr. Strickland, Science Instructor.
Circumference & Pi    3.14.
Newton reasoned that there is a force of attraction between every two objects in the universe.
Newton’s Law of Universal Gravitation
Work on an Incline Lab (name and period).
Simple Pi Challenge! Pi = 3.14 Diameter = 5.6 cm Distance Robot Travels in 1 Rotation = 3.14 * 5.6 cm 3.14 * 5.6 = cm Circumference = Pi * Diameter.
Moon Notes. How much bigger is the Earth than the Moon? Earth radius = 6,385 km Moon radius = 1,738 km How much bigger by diameter or radius? 6385.
Recognising formulae A formula gives you a way to work out the value of something given other information. You use formulae across the curriculum. Which.
WARM UP How many sig Figs are in the following measurements? x ,050, x 10 7.
Circumference and Shape of the Earth Measure angle to star from two locations. Calculate arc deg and circumference. Or Simply watch a ship disappear over.
Note 2: Perimeter The perimeter is the distance around the outside of a shape. Start at one corner and work around the shape calculating any missing sides.
Starter The perimeter of this sector is (2r + 12∏) m. Find the radius r m, of the sector. r m.
Length What is it? Distance from one point to another Unit(s) of measurement Meter (m) - basic unit cm smaller things mm km - bigger things Tools Metric.
Density. Definition Density: The amount of matter in a certain volume. (How much matter is in a given amount of space.) Example: Each of the spheres in.
Math Education Educational Technology EDU 529 Jun 30, 2003 David Bloom.
Measurement Review Stuff you should know…. Measurement Important to measure accurately: –Communicate information –Reliable results –Real Life!
Derived Units Foreign Language? Units We discussed standard units like the meter for distance, seconds for time, and gram for mass Today we.
Hang Time Record on your own paper. Procedure Students work in groups of 3 or 4 with 2 pieces of tape per group (tape can be reused for each person in.
Functional Skills – Maths L2 Perimeter, Area and Volume Presented by: Bill Haining.
Starter Your friend gives you a solid object that is a rectangular solid. Explain how you could determine the density of the material. Your friend gives.
Comparative Planetology Determining Planet Characteristics Most of what is in this tutorial is a review of information contained in past tutorials Please.
Circumference Lesson #33. What is Circumference? The distance around the outside of a circle is called the circumference (essentially, it is the perimeter.
SC.A Making Measurements
Circumference Review. Review What is the relationship between a radius and a diameter? What does a circumference measure? What formulas do we use to calculate.
Unit 3: Motion, Forces, & Energy Chapter 9: Motion & Energy
Bell Work Aug 19, 2015 SPI 0807.Inq.2 (Tools and Procedures) 1.Calculate the Area if the Length is 2cm and Width 5cm. 2.Calculate the Volume if the Length.
By Katherine Whitney STAAR.  Work = Force X distance  Force = mass X acceleration  Density = mass/volume  Speed = distance/time.
Comparative Planetology
Projectiles Motion in Two Dimensions Chapter 7. Projectile An object launched into the air by a force Trajectory The path followed by a projectile.
The Solar System Missions. planets not shown to scale >> MercuryVenusEarthMarsJupiterSaturnUranusNeptunePluto Mean Distance from the Sun (AU)
Lab 2 Density of a Solid and Liquid Objective - Measure the density of aluminum and water.
Assignments. Assignment 1 Write a program to calculate the current equation Where p is the period of pendulum in seconds, g=980 cm/sec 2 (acceleration),
Density Essential Question: How do you calculate density when you have the appropriate data?
The Solar System Missions. Comparative Planetology * The study of the similarities and dissimilarities of the constituents of the solar system. * Provides.
Neptune is the eighth planet from the sun Neptune’s distance from the sun is 30.1 A.U. The distance in kilograms from the sun is 4,503,443,661.
Mars was named after the roman god of war. Who discovered Mars? When? How? Where? A lot of people discovered Mars. On July 20,1976 discovered Mars by.
Perimeter and Area Formulas.  Perimeter is the distance around an object. It is easily the simplest formula. Simply add up all the sides of the shape,
Common Core 7 Unit Reviews Learning Target: Review units for Shapes & Designs & Accentuate the Negative. 1) Pick up a Common Core 7 Units Review packet.
Density. Definition Density is the mass of an object in comparison to the volume it occupies.
Do Now:. Circumference What is circumference? Circumference is the distance around a circle.
Circles. Parts of a Circle Center The diameter is the distance across the circle through the center The radius is the distance to the center point.
Calculating g: Part II Dropping Pumpkins from the Stadium! Review: Freefall Lab: Calculating g Wrapping Up…
Sec. 12.6: Surface Area and Volume of Spheres A sphere is the set of all points in space equidistant from a given point, called the center of the sphere.
SMALL FOAM CUPS The small foam cup's box dimensions: Height: Width: 7.5 Volume: The small foam cup's volume: 67.5.
10-7 Area of Circles and Sectors. REVIEW Circumference: The total distance (in length) around a circle. Arc measure: The measure of the central angle.
Catch Phrase Higher Formulae Questions
Forces, Gravity, and Trigonometry
Describing Rotational Motion
Measuring with Metric.
Measurement.
Types Measurement.
Name:________________ Date:_________________ Class Period:___________
February 1, 2018 Warm-up Find the surface area of a rectangular prism with a length of 5 meters, a width of 7 meters, and a height of 12 meters. Find.
Option 1: Human Power Output 
Measurements and Calculations
Tumblebuggy Lab: Part 1 Purpose: to determine the speed of your Tumblebuggy. Procedure: Use a piece of masking tape to mark the starting line for your.
Presentation transcript:

Determining Earth's Density  What is needed?  Density = Mass / Volume  Volume = 4/3 * pi * Radius 3  How do we determine these?  Two friends for this lab:  Pi =  G = 6.67x meter 3 /(kg * sec 2 )‏

Eratosthenes' Method  Circumference = 2 * pi * Radius

Measuring Earth's Mass  Force=mass*acceleration  Acceleration = G * M earth / R 2 earth  Measuring Acceleration:  Watch an object fall from a known height  Distance = ½ * acceleration * time 2

Our procedure  Measure shadow length of stick  Calculate angle  angle = arctan (shadow length / stick length)‏  Calculate Earth's Circumference  Circumference= (Distance / Angle) * 360  Calculate Earth's Radius  Radius = Circumference / (2 * pi)‏  Measure Fall time  Calculate acceleration  A = 2*distance/ time 2

Procedure, cont'd  Calculate Earth's Mass  Mass = acceleration * radius 2 / G  Calculate Earth's Volume  V = (4/3) * pi * radius 3  Calculate Earth's Density  Density = Mass / Volume

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.