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Why does a spark occur when a person touches an uncharged object?
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Why does a spark occur when a person who is charged touches an uncharged object?
Near the charged object, there is a high charge, near the uncharged object a low charge. As you bring them together the gradient between the two gets steeper and steeper until it is strong enough to pull electrons away from the atoms in the air, ionizing it. The ionized air conducts electricity better, making the gradient steeper still, and a chain reaction occurs. The energy stored is released in a sudden discharge, causing the heat, light and sound of the spark. Lightning follows the same principle.
What energy transformation occur in a drum?
[object Object]
Which can occur when an object is accelerating?
The object's velocityi will change.
Does a change in motion occur only if a net force is exerted on an object?
No. Changes in motion can occur in other ways. A change in motion can occur if that object exerts a net force on another object, like another ball on a billiard table. The object could also bump into an immovable object and its motion would change.
When does reflection occur in a wave?
When the wave hits an object it reflects (bounces) off the object
Why does a spark occur when a person who is charged touches an uncharged object?
Near the charged object, there is a high charge, near the uncharged object a low charge. As you bring them together the gradient between the two gets steeper and steeper until it is strong enough to pull electrons away from the atoms in the air, ionizing it. The ionized air conducts electricity better, making the gradient steeper still, and a chain reaction occurs. The energy stored is released in a sudden discharge, causing the heat, light and sound of the spark. Lightning follows the same principle.
What can occur when an unprotected person touches a 120 volt AC circuit delivering a current of approximately 100ma?
120 volts. Probably won't kill you, but it isn't pleasant.
What energy transformation occur in a drum?
[object Object]
Which can occur when an object is accelerating?
The object's velocityi will change.
What are Crush wounds?
They occur when a heavy object falls onto a person, splitting the skin and shattering or tearing underlying structures
What is a noun form?
Where it changes a word into a noun which is the form and the something for example, occur. The noun form of occur is occurrence so it's changing the verb into a noun - person, place and object.
When does resonance occurs?
Resonance can occur when an object vibrates at another objects resonant frequency.
Does a change in motion occur only if a net force is exerted on an object?
No. Changes in motion can occur in other ways. A change in motion can occur if that object exerts a net force on another object, like another ball on a billiard table. The object could also bump into an immovable object and its motion would change.
How do shadows occur?
by an object blocking light
When does reflection occur in a wave?
When the wave hits an object it reflects (bounces) off the object
What is dependencies in database?
Referentail dependencies occur when an object is referenced in the definition of another object
Does tornadoes occur in the desert?
it is possible because tornadoes only happen when cold air touches hot ait
