The surprising conclusion – the pendulum traverses a longer distance in a shorter time, than in a shorter distance, and its period is shorter. There are a number of reasons why Galileo thought that the period remains constant. One factor which Galileo failed to consider is friction.
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What is the purpose of the pendulum lab experiment?
The goal of this experiment was to determine the effect of mass and length on the period of oscillation of a simple pendulum. Using a photogate to measure the period, we varied the pendulum mass for a fixed length, and varied the pendulum length for a fixed mass.
What is the experiment of simple pendulum?
Mark a point A on the table (use a chalk) just below the position of bob at rest and draw a straight line BC of 10 cm having a point A at its centre. Over this line bob will oscillate. Find the least count and the zero error of the stop clock/watch. Bring its hands at zero position.
What is the hypothesis of the pendulum experiment?
The hypothesis in this case would be, “changing the amount of weight at the end of the pendulum will change the period of the pendulum.” The experiment design would involve measuring the period with one amount of weight, changing the weight without changing any other variables, then measuring the period with the new …
What is the primary objective of the simple pendulum experiment?
OBJECTIVE: To measure the acceleration due to gravity using a simple pendulum. INTRODUCTION: Many things in nature wiggle in a periodic fashion. That is, they vibrate.
What are objectives of pendulum?
OBJECTIVES : To investigate the functional dependence of the period of a pendulum (ฯ) on the length of a pendulum (L), the mass of the bob (m) and the starting angle (ฮธo). To check for systematic errors by calculating g.
How do you make a simple pendulum for a school project?
- Tie a weight onto the end of the piece of string.
- Make a loop at the other end of the string.
- Screw the hook into the piece of wood and balance the wood between the backs of two chairs.
- Put the loop of string over the hook.
- Start the weight swinging and time how long it takes to make 20 swings.
What affects the period of a pendulum lab?
This result is interesting because of its simplicity. The only things that affect the period of a simple pendulum are its length and the acceleration due to gravity. The period is completely independent of other factors, such as mass.
How do you calculate simple pendulum?
What is the relationship between pendulum length and period?
The period of a simple pendulum is directly proportional to the square root of length of the pendulum. The period of a simple pendulum is inversely proportional to the square root of the acceleration due to gravity.
How can you make a pendulum experiment more accurate?
Improve the accuracy of a measurement of periodic time by: making timings by sighting the bob past a fixed reference point (called a fiducial point ) sighting the bob as it moves fastest past a reference point. The pendulum swings fastest at its lowest point and slowest at the top of each swing.
What did Galileo discover about pendulums?
Galileo’s discovery was that the period of swing of a pendulum is independent of its amplitude–the arc of the swing–the isochronism of the pendulum. [1] Now this discovery had important implications for the measurement of time intervals.
What is the dependent variable in a pendulum experiment?
Dependent variable: The dependent variable is the time period for one oscillation. Constant/ Control measures: The constants considered in this experiment are: The mass, shape, size and diameter of the bob The amplitude (angle) at which the spring is gently left to oscillate.
What is dependent variable in simple pendulum?
So, for example, if you were trying to determine how the period of a pendulum changes when the length of the pendulum is varied, the dependent variable would be the pendulum’s period, and the independent variable would be the pendulum’s length.
What is the responding variable in a pendulum experiment?
The independent variable was the length of the pendulum and the dependant variable was the period. The controlled variables were the mass of the pendulum and the point of release. The data we collected and graphed showed that the length of the pendulum affected the period positively.
What are the sources of error in simple pendulum experiment?
The sources of errors in a simple pendulum experiment are the following: human errors comes in when measuring the period using a stopwatch. The reaction time of the observer plays a significant error when starting the stopwatch and when stopping it. This error can be minimized by repeating the experiment many times.
Does mass affect the period of a pendulum experiment?
The period of a pendulum does not depend on the mass of the ball, but only on the length of the string. Two pendula with different masses but the same length will have the same period. Two pendula with different lengths will different periods; the pendulum with the longer string will have the longer period.
How does gravity affect pendulum?
Gravity is the consistent force that always pulls downward on the pendulum, whether it is at rest or in motion. Partly due to the force of gravity, the pendulum swings side-to-side in a rounded motion. The other force acting on the pendulum is the tension force due to string that holds the weight.
How do you plot a graph on a simple pendulum?
How does the length of string affect a pendulum period experiment?
How does the length of a pendulum’s string affect its period? (Answer: A pendulum with a longer string has a longer period, meaning it takes a longer time to complete one back and forth cycle when compared with a pendulum with a shorter string.
How do you find the kinetic energy of a pendulum?
The kinetic energy would be KE= ยฝmv2,where m is the mass of the pendulum, and v is the speed of the pendulum. At its highest point (Point A) the pendulum is momentarily motionless.
How do you find the acceleration due to gravity using a simple pendulum?
What are the two factors that affect the period of a pendulum?
The mass and angle are the only factors that affect the period of a pendulum.
What factors affect the frequency of a pendulum?
Explanation: The only two factors that affect a pendulum’s frequency are the acceleration due to gravity (g) and the length of the pendulum’s string (L).
What factors do not affect the period of a pendulum?
The time period of the movement of the bob of the simple pendulum does not affected by its mass. It is only affected by the acceleration due to gravity of the place, etc. 2) Size or Shape of the bob. The time period of the Simple Pendulum is also not depends upon the Shape or Size of the bob.