- Probably just swinging on a swing or just swinging on monkey bars when I was a little kid. I used to jump off of the swing when I got as high as possible.
What application to "real life" do swinging objects have?
- Grandfather clocks, swing sets, trapeze
What is your prediction about what will happen if two people are on one trapeze and only one is on the other and the one person switches to the other? Explain (in terms of mass)
- The mass will not necessarily be the same when the person switches. The other person on the trapeze may be heavier than the one on the previous trapeze. Depending on momentum the trapeze that inherits the new person may gain speed or more forward motion while the trapeze that loses the person may slow down due to lack of mass being forced in opposite directions. This is trivial though because it depends on if each trapeze is pumping their legs and other things to help propel it forward and backward.
What understanding or ideas do you have about the science of back-and-forth swinging objects?
-My understanding is that unless something is propelling it back-and-forth the idea is that the object will slow down and eventually stop. The amount the object moves in each direction also depends on the mass of the object and the distance from its stationary point to the object itself (example: the distance of a swing's chains in relation to where you sit).
I agreed with a lot of the things that you talked about. Many of my ideas were very similar and I agree that if we have nothing propelling the objects back and forth that eventually the swing will slow down and stop.
ReplyDeletePredictions before experiment given to us:
ReplyDelete1 washer- 4 frequencies
2 washers- 1 1/2 times previous = more mass/more force
3 washers- 2 times 1 washer = more mass/more force
4 washers- 2 1/2 times 1 washer = more mass/more force
Mean after experiment
1 washer- 12.625 frequencies
2 washers- 12.5625 frequencies
3 washers- 12.4375 frequencies
4 washers- 12.25 frequencies
Total- 12.46875
In summary: My predictions were not close at all. It was blind guessing so that makes sense.
Playing around:
Some questions I have-
Would the length of string effect the number of frequencies?
Would the weight effect the number of frequencies?
Would the angle effect the number of frequencies?
Would a different type of string effect the number of frequencies?
Results:
Tried to use a 45 degree angle with 15 cm string and 4 washers.
-The string didn't reach a full frequency. The angle was too great.
QUIZ
ReplyDeleteWhat is the swinging experience like based on the model swing?
Based on research I found that the length of the string does effect the number of frequencies. Since there are two strings connected at different points then the length is different forcing the frequencies to differ. The weight of the person does not matter.