Acceleration, Weight and Mass. Weight Near the surface of the Earth, the pull of gravity on a body...
-
Upload
jasmin-gardner -
Category
Documents
-
view
224 -
download
0
description
Transcript of Acceleration, Weight and Mass. Weight Near the surface of the Earth, the pull of gravity on a body...
![Page 1: Acceleration, Weight and Mass. Weight Near the surface of the Earth, the pull of gravity on a body is practically constant and every falling body acquires.](https://reader036.fdocuments.us/reader036/viewer/2022062311/5a4d1b0f7f8b9ab05998dc4d/html5/thumbnails/1.jpg)
Acceleration, Weight and Mass
![Page 2: Acceleration, Weight and Mass. Weight Near the surface of the Earth, the pull of gravity on a body is practically constant and every falling body acquires.](https://reader036.fdocuments.us/reader036/viewer/2022062311/5a4d1b0f7f8b9ab05998dc4d/html5/thumbnails/2.jpg)
Weight• Near the surface of the Earth, the pull of
gravity on a body is practically constant and every falling body acquires constant acceleration equal to “g”
• The force that accelerates the body downward is equal to its weight “w”
![Page 3: Acceleration, Weight and Mass. Weight Near the surface of the Earth, the pull of gravity on a body is practically constant and every falling body acquires.](https://reader036.fdocuments.us/reader036/viewer/2022062311/5a4d1b0f7f8b9ab05998dc4d/html5/thumbnails/3.jpg)
• It follows that if “m” is the mass of the body, then Newton’s 2nd law equation, F = ma can be restated as:
• This enables us to compute the weight of a body from its mass, or the mass of the body from its weight.
![Page 4: Acceleration, Weight and Mass. Weight Near the surface of the Earth, the pull of gravity on a body is practically constant and every falling body acquires.](https://reader036.fdocuments.us/reader036/viewer/2022062311/5a4d1b0f7f8b9ab05998dc4d/html5/thumbnails/4.jpg)
• “g” can also be calculated for another planet by the equation:
![Page 5: Acceleration, Weight and Mass. Weight Near the surface of the Earth, the pull of gravity on a body is practically constant and every falling body acquires.](https://reader036.fdocuments.us/reader036/viewer/2022062311/5a4d1b0f7f8b9ab05998dc4d/html5/thumbnails/5.jpg)
![Page 6: Acceleration, Weight and Mass. Weight Near the surface of the Earth, the pull of gravity on a body is practically constant and every falling body acquires.](https://reader036.fdocuments.us/reader036/viewer/2022062311/5a4d1b0f7f8b9ab05998dc4d/html5/thumbnails/6.jpg)
![Page 7: Acceleration, Weight and Mass. Weight Near the surface of the Earth, the pull of gravity on a body is practically constant and every falling body acquires.](https://reader036.fdocuments.us/reader036/viewer/2022062311/5a4d1b0f7f8b9ab05998dc4d/html5/thumbnails/7.jpg)
![Page 8: Acceleration, Weight and Mass. Weight Near the surface of the Earth, the pull of gravity on a body is practically constant and every falling body acquires.](https://reader036.fdocuments.us/reader036/viewer/2022062311/5a4d1b0f7f8b9ab05998dc4d/html5/thumbnails/8.jpg)
Gravitational v. Inertial Mass• Obtaining a mass measurement based on
the pull of gravity on a body is known as gravitational mass.
![Page 9: Acceleration, Weight and Mass. Weight Near the surface of the Earth, the pull of gravity on a body is practically constant and every falling body acquires.](https://reader036.fdocuments.us/reader036/viewer/2022062311/5a4d1b0f7f8b9ab05998dc4d/html5/thumbnails/9.jpg)
Is gravity needed to measure mass?
• If some known force is applied to a body, and its acceleration is measured, we can calculate the mass using Newton’s 2nd law.
• Since the amount of mass is related to body’s inertia, an how much it resists a change in motion, it is called the inertial mass.