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Why does motion occurs?
motion occurs when an object changes its position relative to a reference point.
' uniform motion in a circle in which speed is constant but velocity is changing'?
This is because the term "velocity" includes a specification both of a speed, and a direction. The direction changes, therefore the velocity changes.
Where is the speed of a simple harmonic oscillator equals to zero?
At the highest and lowest extremes of its travel, at the points where it changes its direction of motion.
What is rectilinear motion?
The motion along a straight line is known as rectilinear motion.
What is motion perpendicular to the ground?
Vertical motion is the motion that is perpendicular to the ground.
A magnet is plunged into and out of a coil of wire 2 times per second this induces 5 voltsif the rate of motion changes so the magnet is plunged in and out 6 times per second what would be the voltag?
2 times per second x (2.5)= 5 volts 6 times per second x (2.5)=15 volts
If the rate of motion changes so that the magnet is plunged in and out 6 times per second what will be the new induced voltage?
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When does a magnet induce an electric current in a wire coil?
A magnet induces an electric current in a wire coil when there is a relative motion between the magnet and the coil, which generates a changing magnetic field. This changing magnetic field induces an electromotive force, leading to the flow of an electric current in the wire coil.
How can a magnet induce current in a wire?
When a magnet moves near a wire, it creates a changing magnetic field around the wire. This changing magnetic field induces an electric current to flow in the wire through electromagnetic induction. The current is only induced while there is a relative motion between the magnet and the wire, or if the magnetic field intensity changes.
Why does a magnet fall slower in a copper pipe?
A magnet falls slower in a copper pipe because the magnetic field generated by the moving magnet induces an electric current in the copper pipe, creating a magnetic field that opposes the magnet's motion, causing resistance and slowing it down.
Why does a magnet slow down when moving through a copper tube?
A magnet slows down when moving through a copper tube because the magnetic field generated by the moving magnet induces electric currents in the copper tube, creating an opposing magnetic field that resists the motion of the magnet. This resistance, known as electromagnetic induction, causes the magnet to slow down as it moves through the tube.
What is the key when using a magnet and a conductor to induce a current in the conductor?
Motion
What will happen if a bar magnet is moved through a coil of wire?
Moving a bar magnet through a coil of wire induces an electromotive force (EMF) in the coil. This phenomenon is known as electromagnetic induction, according to Faraday's law. The induced current in the wire will produce a magnetic field that opposes the motion of the magnet, following Lenz's law.
Why is it more difficuilt to move a magnet into a coil of more loops that is connected to a resistor?
Moving a magnet into a coil with more loops induces a stronger magnetic field, which in turn generates a larger induced current in the coil due to Faraday's law of electromagnetic induction. This induced current creates a magnetic field that opposes the motion of the magnet, resulting in increased resistance to movement. The resistor connected to the coil dissipates this induced current as heat, further impeding the magnet's motion.
Why can magnet attract steel paperclip?
Magnets attract steel paperclips because steel contains iron, which is a ferromagnetic material. When a magnet comes near a steel paperclip, it induces a magnetic field within the paperclip causing it to be attracted to the magnet.
Why will a bar magnet fall slower and reach terminal velocity in a vertical copper or aluminum tube but not in a cardboard tube?
This is an aspect of Lenz's law. Copper is a non magnetic substance but is a conductor. When a magnet moves through the copper pipe it induces a current known as eddy currents. There will be a magnetic field created by the current. According to Lenz's law it will oppose the motion or change which is producing it. This results in an attractive force between the magnet and the copper pipe in which a current is induced by the falling magnet. The plastic rod is not conducting and hence it will not affect the fall.
What uses a magnetic field to turn motion to electricity?
A microphone is a good example of a device that utilizes electromagnetic induction (Faraday's Law) to convert motion (vibrations in air) into electricity. The sound vibrates a membrane attached to a little magnet inside a coil of wire. The changing magnetic field induces a current in the wire.
