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# Tag Archives: gravity

• ## Measuring the Acceleration with the g Ball

Posted on March 17, 2014 by Dr. David Kagan

Galileo claimed that all objects fall toward Earth with the same acceleration. Modern measurements indicate that this acceleration is about 9.8m/s2.  Using the G-Ball by Arbor Scientific, you can measure this value and compare the acceleration of other objects with different masses and in different states of motion.

This post was posted in CoolStuff Newsletters, Force & Motion and was tagged with measurement, acceleration, acceleration due to gravity, gravity, Galileo, g, baseball, softball

• ## Acceleration and Gravity

Posted on January 1, 2011 by Arbor Scientific

When a car is on a ramp, a portion of its weight works to roll it down the ramp. Another portion works to hold it down to the ramp. These two portions, or component forces, are perpendicular to one another and can be found by using the car’s weight and the angle of the ramp.

This post was posted in Labs, Motion and was tagged with acceleration, car ramp, gravity, Lab 5

• ## Apparent Weightlessness

Posted on January 1, 2011 by Arbor Scientific

Chapter 13 Lab #43: Students will observe the effects of gravity on objects in free fall.

This post was posted in Conceptual Physics 4th Edition Lab Manual and was tagged with gravity, freefall, weightlessness

• ## Where's your CG?

Posted on January 1, 2011 by Arbor Scientific

Chapter 11 Lab #37:

Each student will locate their center of gravity.

## Metric Bath ScaleProduct # PX-1080

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This post was posted in Conceptual Physics 4th Edition Lab Manual and was tagged with gravity, CG, center of gravity

• ## Acceleration Due to Gravity

Posted on January 1, 2011 by Cary Busby

The first experiment will use very basic equipment to measure an important quantity, the acceleration of an object in freefall. This is also known as the acceleration due to gravity, or g. The acceleration due to gravity is nearly the same at all points on the earth’s surface, 9.8 m/s2. You will compare your result to this accepted value. The second experiment will use a data-logger and photogates to measure the acceleration due to gravity. The “picket fence” has been used since photogates were developed to measure acceleration. The “pickets” block the photogate in sequence, giving a series of velocity readings. Using the velocities and the times between those velocities, the data-logger (or the student) can calculate the acceleration of the picket fence. The third experiment will use a data-logger and motion sensor (or sonic ranger) to measure the acceleration due to gravity.

This post was posted in Labs, Motion and was tagged with acceleration, acceleration due to gravity, gravity, freefall

• ## The Firing Squad Demo... It's Physics!

Posted on November 1, 2010 by Stephen Rea

Every day we have to make choices. Sometimes these can be life changing. In the Firing Squad Demo the student you pick to be the target, will have to choose between two dart guns to be shot with!

This post was posted in CoolStuff Newsletters, Force & Motion and was tagged with mass, inertia, gravity, physics, Firing Squad, dart guns

• ## Projectile Motion for Everyone

Posted on October 11, 2008 by Arbor Scientific

Everybody loves the unforgettable, visceral thrill of a rocket launch. Whether it’s the Saturn V with 7.6 million pounds of thrust or a tiny model launched from your backyard, projectile motion can be studied and understood by students of all ages. In fact, many teachers conduct projectile motion demonstrations with water-powered or solid-fuel model rockets.

This post was posted in CoolStuff Newsletters, Force & Motion and was tagged with gravity, projectile motion, rocket launch, elasti-launcher

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