A bob is the mass on the end of a pendulum found most commonly, but not exclusively, in pendulum clocks.
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What is the motion of a bob?
EXPLANATION: The motion of the bob of a simple pendulum is an example of Oscillatory motion.
Why is a pendulum bob called a bob?
Pendulum Bob Any object that hangs on the pendulum string. It can be a toy ball, a bowling ball, or a small car (if the string is string enough). It may be called a “bob” because its vertical position “bobs” up and down while its horizontal motion moves side to side.
What is spherical bob?
A spherical bob is chosen for a simple pendulum for the following reasons: 1. For a given value of density, the spherical shape has minimum volume. 2. The air friction is minimum due to spherical shape.
What word is bob?
Definition of bob (Entry 1 of 7) transitive verb. 1 : to strike with a quick light blow : rap. 2 : to move up and down in a short quick movement bob the head.
Is the motion of bob uniform?
Answer: Motion of the bob is non-uniform because speed of the bob keeps changing.
Is bob of a pendulum in uniform motion?
A simple pendulum is oscillating between two points A and B is uniform motion. As Bob (small metallic ball) moves in a constant speed throughout the motion so it is a uniform motion. Was this answer helpful?
Why is spherical bob preferred?
A spherical bob creates more control for the simple pendulum experiment. An irregular bob like a large piece of paper for instance, will create too much air resistance for a basic classical experiment to yield predictable results within the academic lab.
What are two forces acting on the bob?
There are two dominant forces acting upon a pendulum bob at all times during the course of its motion. There is the force of gravity that acts downward upon the bob. It results from the Earth’s mass attracting the mass of the bob. And there is a tension force acting upward and towards the pivot point of the pendulum.
What is the simple pendulum theory?
A simple pendulum can be approximated by a small metal sphere which has a small radius and a large mass when compared relatively to the length and mass of the light string from which it is suspended. If a pendulum is set in motion so that is swings back and forth, its motion will be periodic.
Why simple pendulum is called simple?
The simple pendulum (see wikipedia or hyperphysics) leads to a simple differential equation by using Newton’s second law: ยจฮธ+glsin(ฮธ)=0. This pendulum gives the easiest way te look at harmonic motion. The above case is what they call the simple pendulum.
Does shape of bob affect period of pendulum?
Time period is independent of size of bob. It depends on length of string and the acceleration due to gravity.
What is length of pendulum?
To calculate the length of a simple pendulum, use the formula L = (T/ 2ฯ)ยฒ*g . Where T is the time period of the simple pendulum and g is the acceleration due to gravity.
What is the momentum of simple pendulum?
or, p=2mE is our required answer.
When was bob introduced?
B.o.B first began to gain recognition at the start of 2007. The underground single, “Haterz Everywhere” featuring Wes Fif, gained the rapper attention by peaking at number 5 on the US Billboard Bubbling Under Hot 100 Singles.
What is bob Report?
ยซ Back to Glossary Index. OTB = On The Books BOB = Business On Books. The most common acronyms, both used interchangeably, for reservations and overnight stays already booked. Predicting demand.
What is bob Head?
to move your head down and then back up again in a short quick movement as a way of greeting someone or showing agreement or respect.
Is Bob in Scrabble?
Yes, bob is a valid Scrabble word.
What is bob up and bob down?
to move up and down with short regular movements, especially on water that is rising and falling. bob up and down: The little boat bobbed up and down on the waves. Synonyms and related words. To move up and down or backwards and forwards.
Is Bob a proper noun?
Proper noun A diminutive of the male given name Robert.
What is uniform motion example?
Uniform motion is the motion of an object along a straight line with uniform velocity. Examples of uniform motion are the movement of the fan’s blades, the motion of the earth around the sun, the motion of the pendulum with equivalent amplitude on either side, etc.
What is a non uniform motion?
Definition: This type of motion is defined as the motion of an object in which the object travels with varied speed and it does not cover same distance in equal time intervals, irrespective of the time interval duration.
What kind of motion does a simple pendulum exhibit?
The simple pendulum is another mechanical system that moves in an oscillatory motion. It consists of a point mass ‘m’ suspended by means of light inextensible string of length L from a fixed support as shown in Fig. 2.8. The motion occurs in a vertical plane and is driven by a gravitational force.
What makes a pendulum move?
This is because the swinging motion of a pendulum is due to the force of gravity generated by the earth’s size. Other factors, including a pendulum’s length, can also affect its motion. A pendulum is an object hung from a fixed point that swings back and forth under the action of gravity.
How does a pendulum work physics?
The motion of a pendulum is a classic example of mechanical energy conservation. A pendulum consists of a mass (known as a bob) attached by a string to a pivot point. As the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.