Featured in PASCO’s Physics through Inquiry Teacher Guide

Physics through Inquiry Teacher Guide

(PS-2873C)

Features over 30 inquiry based labs covering the core topic areas of mechanics, electricity and magnetism, optics, thermodynamics and more.

Archimedes' Principle

Lab Summary

Use a force sensor to explore the relationship between the volume of fluid displaced by a submerged object and the buoyant force experienced by that submerged object.

Theory

Students explore the relationship between the volume of fluid that a submerged object displaces and the buoyant force experienced by that submerged object. Through this process, students discover:

  • The sum of the forces equals zero if the object is not accelerating.
  • Water provides an upward buoyant force on submerged objects.
  • That forces are responsible for some objects sinking and other objects floating.

Method

Students gain experience conducting the following procedures:

  • Using a force sensor to measure the net downward force on the object submerged in air and submerged in water.
  • Measuring the volume of water displaced by the object by using a spill-can.
  • Calculating the weight of the displaced water using a scale or knowledge of the density of water.

Sensors / Equipment Used:

PASPORT Force Sensor

(PS-2104)

Designed to measure both pulling and pushing forces. Uses range from collisions to tug-of-war.

Materials Used:

Balance

String ~ 25 cm

Right-angle clamp

Rod stand

Overflow can

Short rod

Cup or beaker to catch water from overflow can

Graduated cylinder ~ 25 mL

Objects to submerge

Ruler

Small cup to add water to the overflow-can

Water ~ 500 mL

Your Bundle Options:

Option 1:

Physics Starter Sensor Bundle

(PS-2923)

A sensor bundle specifically designed to get you started using probeware in your physics lab. Also: perform 26 of the 37 Lab Activities from Physics through Inquiry.

Option 2:

Physics Standard Sensor Bundle

(PS-2931B)

Contains the probeware needed to perform all 37 lab activities in the Physics through Inquiry lab manual.

Interface Required

This experiment may require software and an interface for data collection.