Show:
Define this
Vocabulary
What is that?
Tell Me About It
Tell me more
100
A property that allows one object to exert a force on another object without touching it.
electric charge
100
A material that transfers electric charge easily.
What is conductor
100
A continuous flow of electric charge, which is measured in amperes.
What is electric current
100
Explain the advantages and disadvantages of storage cells over other types of electric cells
What is Storage cells can be recharged repeatedly, last longer and work at night but they run down and can't be used while recharging. Solar cells do not work at night.
100
A sock and a shirt from the dryer stick together. What does this tell you about the charges on the sock and the shirt?
What is opposite charges
200
An area surrounding a charged object, within which the object can exert a force on another object without touching it.
What is electric field
200
A material that does not transfer electric charge easily.
What is insulator
200
The unit of measurement of electric current, which is equal to one coulomb per second.
What is ampere
200
What materials can be used as a conductor/insulator?
Conductor: iron, steel, copper, aluminum Insulator: plastic, rubber
200
How do positive and negative charges interact?
What is they are attracted to each other
300
The buildup of electric charge in an object caused by the uneven distribution of charged particles.
What is static charge
300
The property of a material that determines how easily a charge can move through it.
What is resistance
300
The mathematical relationship among current, voltage, and resistance
What is Ohm's law
300
If you charge something by induction you are charging something...
What is at a distance
300
How do rechargeable batteries work differently from non-chargeable ones?
What is Rechargeable batteries use chemical reactions that can be reversed
400
The amount of potential energy per unit charge that a static charge or electric current has
What is electric potential
400
The unit of measurement for electrical resistance.
What is ohm
400
A device that produces electric current using the chemical or physical properties of different materials.
What is electric cell
400
Explain what happens when you get a static electric shock as you touch a doorknob?
What is your body builds up a charge. As your hand nears the doorknob an opposite charge is created in the doorknob. The charge moves and shocks your hand.
400
What is the voltage of a battery that send 5 amps through a wore with a resistance of 10 ohms? l=v/r, r=v/l, v=l x R
What is 50 volts
500
The unit of measurement for electric potential, which is equal to one joule per coulomb.
What is volt
500
The creation of a harmless, low-resistance path—a ground—for electricity to follow.
What is grounding
500
Describe the events leading up to a bolt of lightning striking the Earth from a storm cloud....
Collision between particles in storm clouds separate charges, positive on top, negative on bottom, bottom of cloud induces positive charges in ground. When the difference gets high enough charges move from cloud to the ground
500
What is the purpose of a lightning rod?
What is to transfer the lightning safely to the ground without affecting the building is it attached to.
500
What three factors affect how much electrical resistance an object has?
What is amount, shape, type of material