Find Surface Area and Volume when Radius Changes

365 views · Published 15 June 2014 · 12:19 · Indexed 22 October 2026

Channel: MooMooMath and Science · 2014 · Education

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When the radius changes what happens to the new area and volume.

This is a long video so please take advantage of the video guide
0:33 Define linear measurement ( radius and diameter)
0:57 Area measure explained
1:03 Volume explained
1:54 How to convert the linear relationship to an area relationship and a volume relationship
These are several examples of converting from linear to area to volume and keeping the correct ratios
2:56 Example 2
4:11 Example 3
4:59 Example 4
6:20 Example 5
7:00 Application problems on surface area and volume A balloon has a radius of 6in.  Describe what happens to the balloon's surface area if the balloon inflates and the radius changes to 12in.
9:08 2. Describe what happens to the same balloon's volume if the radius is doubled
10:02 3. A sphere has a radius of 4 in.  What happens to the sphere's volume if the radius is halved?
11:25 4. A sphere has a radius of 8in.  What happens to the sphere's surface area if the radius is halved?
12:25 Fills in radius, surface area and volume chart

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