1. Electric charge is 2. After rubbing a plastic ruler with a felt cloth, the ru
ID: 2305296 • Letter: 1
Question
1. Electric charge is
2.
After rubbing a plastic ruler with a felt cloth, the ruler becomes negatively charged because:
The potential energy lost to friction was converted into negative charges.
3. Electric charge is conserved, meaning _______.
we must be careful not to waste charge.
4.
Metals are typically ______________,
they allow charge to move freely.
Materials like wood, rubber, and plastic are _______________,
they do not allow charges to move freely.
5.
When a negatively-charged object is brought close to a neutral conductor, but does not touch it, what happens?
A property of matter that is distinct from energy, momentum, mass, velocity, and acceleration.Explanation / Answer
Ans
1. Electric charge is
A property of matter that is distinct from energy, momentum, mass, velocity, and acceleration.
Explanation: Electric Charge is a unique property of matter.
2. After rubbing a plastic ruler with a felt cloth, the ruler becomes negatively charged because:
The negative charges were transferred from the cloth to the ruler.
Explanation: Ruler is a bad conducter ( uncharged). It can be negatively charged if the negative charges were transferred from the cloth to the ruler.
3. Electric charge is conserved, meaning _______.
a neutral object can never be separated into two charged objects.
Explanation: From Conservation of charge theory we know that charge can not be created or destroyed.
4. Metals are typically conductors
they allow charge to move freely.
Materials like wood, rubber, and plastic are insulators,
they do not allow charges to move freely.
5. When a negatively-charged object is brought close to a neutral conductor, but does not touch it, what happens?
The free electrons in the conductor move away from to the negatively charged object, separating the charge in the conductor so it is more positive near the object.
Explanation :
When a negatively-charged object is brought close to a neutral conductor , the free electrons within the neutral conductor which are closed to the negatively charged object will be repelled due to the negative charge present in the object and therefore conductor will be more positive near the object.
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