Pendulum Lab: Change Independent and Dependent Variables in 3 Lab Experiments

Pendulum Lab: Change Independent and Dependent Variables in 3 Lab Experiments
Pendulum Lab: Change Independent and Dependent Variables in 3 Lab Experiments
Pendulum Lab: Change Independent and Dependent Variables in 3 Lab Experiments
Pendulum Lab: Change Independent and Dependent Variables in 3 Lab Experiments
Pendulum Lab: Change Independent and Dependent Variables in 3 Lab Experiments
Pendulum Lab: Change Independent and Dependent Variables in 3 Lab Experiments
Pendulum Lab: Change Independent and Dependent Variables in 3 Lab Experiments
Pendulum Lab: Change Independent and Dependent Variables in 3 Lab Experiments
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6 MB|21 pages
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  1. This collection of labs will help you teach a unit on Density, Air Pressure, and Buoyancy from an investigative perspective. Labs are the best part of science! When students start with the scientific phenomena, they’re intrigued and excited to dig deeper into the why’s and how’s of each scientific c
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Product Description

Pendulums are a classic and reliable lab experiment. Here there are three separate labs, each focused on a different independent variable: pendulum length, weight, and angle of release. Students quickly realize that only one of these affects the dependent variable, time. Why do an experiment that has zero results? Because it's important to know what things affect the dependent variable and which do not. Working through all three labs should spur discussions about scientific method and why scientists repeat experiments.

Use this to learn and reinforce answers to questions such as:

❑ What things change the period of a pendulum?

❑ Why is the period of a pendulum useful?

❑ What things do not change the period of a pendulum?

Once students work through the activity, they can capture their observations using the included Lab Notes or probing questions included in the instructions. 

Concepts Addressed

♦  The period of a given pendulum is constant

♦  The period of a pendulum depends on its length

♦  The period of a pendulum does not change with the angle of release

♦  The period of a pendulum does not change with the weight of the bob

VA SOL

ES.1.c, ES.1.e, PS.1f., PS.1g., PS.1i.

Answer Keys and Teacher Notes address most questions and issues that might arise in this study—you shouldn’t have to do any outside research unless you want to.

Materials Needed: String (about 2 m per setup), paperclip, washers or small weights, clamp stand (alternate setups are suggested for this)

Teaching Time: 120 min

Prep Time: Copy (and laminate) paper protractor

Student Sheets   Scaffolded writing prompts & lab reporting 

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Terms of Use
Copyright © Carolyn Balch. All rights reserved by the author. This product is to be used by the original downloader only. Copying for more than one teacher, classroom, department, school, or school system is prohibited. This product may not be distributed or displayed digitally for public view. Failure to comply is a copyright infringement and a violation of the Digital Millennium Copyright Act (DMCA). Clipart and elements found in this PDF are copyrighted and cannot be extracted and used outside of this file without permission or license. Intended for classroom and personal use ONLY.


Total Pages
21 pages
Answer Key
Included
Teaching Duration
30 minutes
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