Use the formula T = 2Pi * Square root (L)/ Square root (g)
Set T to .75; L is length of string and g is gravity (9.8 m/s)
The time of swing of a pendulum is T = 2π √ (l/g) where l is the length of the pendulum. As T ∝√l (Time is directly proportional to the square root of l) then, the longer the pendulum, the greater is the period. Therefore longer pendulums have longer periods than shorter pendulums.
4 seconds
10 secs
1 time per second
66
The pendulum of a clock is the long weighted bar that swings back and forth in the case below the clock. It was discovered several hundred years ago that the time it takes for one swing of a particular pendulum is constant, no matter how big or small the swing is. It can, therefore, be used to measure time.
12.
As far as I know they have more to do with Newton's law that every action has a opposite and equal reaction. As far as them telling time it may have to do with the pendulum and how long each period (swing) is.
The pendulum of a clock is the long weighted bar that swings back and forth in the case below the clock. It was discovered several hundred years ago that the time it takes for one swing of a particular pendulum is constant, no matter how big or small the swing is. It can, therefore, be used to measure time.
Not significantly, unless you start with the pendulum over about 15 degrees or so from the vertical. At large angles the period of the pendulum would increase somewhat, as the restoring force no longer increases linearly with displacement. You will note that clock pendulums generally swing through quite a small angle.
The speed of a pendulum is determined by the length of the pendulum arm and the force applied to set it in motion. A shorter pendulum will swing faster, while a longer pendulum will swing slower. Additionally, factors such as air resistance and friction can also affect the speed of a pendulum swing.
probobly 2 meters
A pendulum is a piece of string attached to a 20 g mass that if you double the length it will take twice as long to swing.
The period of a pendulum can be calculated using the equation T = 2π√(l/g), where T is the period in seconds, l is the length of the pendulum in meters, and g is the acceleration due to gravity (9.81 m/s^2). Substituting the values, the period of a 0.85m long pendulum is approximately 2.43 seconds.
Any mechanical clock or watch (by mechanical I mean non-electric motor driven) uses a pendulum.A pendulum is a great invention; it uses the amount of time that it takes to swing (the period of the swing) to release a single step on a gear (called an escapement gear). No matter how much tension is on the escapement, the pendulum will not swing faster.The time can also be adjusted by shortening or lengthening the distance from the escapement to the pendulum weight.A very cool demonstration is at http://www.howstuffworks.com/gadgets/clocks-watches/clock.htm
A pendulum will swing back and forth indefinitely as long as it has enough energy to overcome friction and air resistance. The number of swings will depend on factors such as the length of the pendulum and the initial force used to set it in motion.
To determine the frequency of a pendulum, you can use the formula: frequency 1 / period. The period is the time it takes for the pendulum to complete one full swing back and forth. You can measure the period by timing how long it takes for the pendulum to complete one full swing. Then, calculate the frequency by taking the reciprocal of the period.