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It doesn't change direction; there is no force on it (perpendicular to the plane in which it swings) that would cause it to do so.
It APPEARS to change direction relative to the Earth, but the Earth is a rotating frame of reference. If you watch the pendulum from a frame of reference above the Earth and the pendulum, you would see that it swings back and forth in its plane of oscillation.
See the famous movie FRAMES of REFERENCE, with Professors Hume and Ivey, made in 1959, to see an excellent demonstration of this. Using a rotating frame, they show that a camera in the rotating frame appears to show the pendulum changing direction. Using a camera above the rotating frame, fixed to the floor, they show the pendulum never changes direction; only the frame rotates.
. It swings back and forth in the same plane. There is no force on it to make it change
Wiki User
∙ 14y ago
Wiki User
∙ 9y agoi believe it is due to the earth's rotation, the reference points used to describe the direction of travel of the pendulum is rotating, while the pendulum itself maintains it's course
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A Foucault pendulum appears to change its direction of swing due to the?
rotation of earth
What causes a tornado to move or change direction?
A number of things. Outflow from the parent storm or a nearby storm can give a tornado a "push" in a new direction. Larger scale wind currents can change the direction of the parent storm itself
What does a water erosion cause?
Water erosion causes geography changes. Overtime, a river can erode land and change the direction of the river altogether.
When is the work said to be done?
Work can be defined as the vissible change of something or someone so the work happens when you can detect or measure the change you are trying to provoke.Is necessary the application of a force to make the change.Mechanical work causes movement,Chemical work causes reactions and psychological work causes improvement in people´s behavior
A wave changes directions when its speed changes This is called?
Reflection, or refraction, depending on what causes the change in direction.
A Foucault pendulum appears to change its direction of swing due to the?
rotation of earth
What causes the apparent change in the path of pendulum?
no
What causes the apparent change in the path of the pendulum?
no
What causes a spaceshuttle to change in velocity by change in direction?
A change in velocity constitutes a change in direction because velocity includes direction.
What are the limitation of simple pendulum?
The popular formula for the period of a pendulum works only for small angular displacements. In deriving it, you need to assume that theta, the angular displacement from the vertical, measured in radians, is equal to sin(theta). If not, you need to make much more complicated calculations. There are also other assumptions to simplify the formula - eg string is weightless. The swing of the pendulum will precess with the rotation of the earth. This may not work if the pendulum hits its stand! See Foucault's Pendulum (see link). The motion of the pendulum will die out as a result of air resistance. Thermal expansion can change the length of the pendulum and so its period.
What things change direction constantly?
For example, a pendulum, or anything that moves in a circle or elipse, such as a planet moving around the Sun.
What causes raindrops to change direction?
W-I-N-D
What causes the change in direction when light passes into glass?
REFRACTION
Anything that causes and object to move or change its speed or change its direction is called what?
A force.
What causes light to change directions?
The change in speed of light changes the direction.
Every push or pull that causes a change in speed or direction is a?
work
What causes currents to change direction?
Circulating winds
