{"page":"\n\n
\n
\n
\n
\n
\n\nVideo\n
\n

\nFinding Centre of the Mass of a Ruler\n

\n
\n
\nGet Free Access for 10 Days!\n
\n
\n
\n
\n
\n
×
\n\n\n
\n\nPublisher:\n\nCurated Video\n\n\n
\n
\nWe are trying a fun way to find the centre of the mass of a ruler. If you hold your index fingers in front of you, put a ruler on top of them and start moving your hands towards each other, your fingers end up right at the unique point...\nWe are trying a fun way to find the centre of the mass of a ruler. If you hold your index fingers in front of you, put a ruler on top of them and start moving your hands towards each other, your fingers end up right at the unique point where the ruler's mass is centred. We added weight on one side to make it more challenging, and then we tried moving fingers at different speeds and placing fingers at the asymmetrical position. But every time we fingers meet right under the centre of the mass of the ruler. How does it work? The finger that is closer to the centre of the mass carries more weight and friction increases letting the other finger come closer. Then the same thing is happening with the second finger, which allows the first finger to slide.\n
\n
\n\n
\n
\n
\n
\n

Resource Details

\n
\n
\n
\n
Curator Rating
\n
\n
\n
\n
\n
\n
Educator Rating
Not yet Rated
\n
\n
\n
\n
\n
Media Length
\n
1:53
\n
\n
\n
\n
\n
Grade
Pre-K - 8th
\n
\n
\n
\n
\n
Subjects
Science
9 more...
\n
\n
\n
\n
\n
Media Type
Instructional Videos
\n
\n
\n
\n
\n
Source:
\n
\nTheDadLab\n\n
\n
\n
\n
\n
\n
Date
\n
2021
\n
\n
\n
\n
\n\n
Language
English
\n
\n
\n
\n
\n
Audiences
For Teacher Use
2 more...
\n
\n
\n
\n
\n
Usage Permissions
Fine Print: Educational Use
\n
\n
\n
\n
\n
\n

Additional Materials

\n
\n\nSign in or Join Now
\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" href=\"/subscription/new\">Video Transcript\n
\n
\n\nSign in or Join Now
\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" href=\"/subscription/new\">Video Preview\n
\n
\n
\n

Concepts

\n
\n
center of mass, mass, center of gravity
\n
\n\n\n
\n
\n
\n
\n

Additional Tags

\n
\n
centre of mass, kids science experiments, kids science learning videos, physics experiments, physics experiments at home, physics experiment project, physics experiments for kids, science at home, science at home experiments, science at home easy, easy, find, centre, middle, side, fingers, finger
\n
\n\n\n
\n
\n
\n
\n

Classroom Considerations

\n
Video is ad-free
\n
\n
\n

Educator Ratings

\n
\n
\n
\n
\n
\n\nShow resource details\n
\n
\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: Finding Centre of the Mass of a Ruler\" href=\"/subscription/new\">\"Finding\n\n
\n
\n
\n\n\n\n"}