Electric Charges
What is a material through which an electric charge can move easily?
What is a conductor
What type of circuit allows electric charge to flow in one circular path?
What is a series circuit
When you rub your two hands together very fast what is caused by that energy of motion?
What is friction
Silver is a good insulator for a metal wire?
False
Name a material that is an insulator
What is (plastic, rubber, wood, cloth, dry air)
Electric current can not flow in a series circuit if what happens
What is there is a break in the loop or circuit
What transforms energy to other forms of energy?
What is a resistor
A good energy source for a circuit is a switch
False (it is a battery)
Which one of the following materials is a conductor:
rubber
glass
lead
dry air
What is lead
What will happen if one light bulb goes out in a parallel circuit containing three lit lightbulbs?
A washing machine is an example of what two forms of energy transforming?
What is electrical energy into motion energy
An example of a resistor is a filament
True
Name two uses for an insulator?
What are it makes electric objects safe to handle and it keeps the electric current flowing through the wires
What is an electric charge in motion?
What is an electric current
What are the three forms of energy are involved in a filament giving off light?
What is electrical energy, heat energy and light energy
Objects with resistors change electrical energy into light
true
Why does static electricity cause your hair to stand up if you rub a balloon against it?
What is the the positive and negative charges are no longer balanced
What are the four parts that a circuit has?
What are wires, energy source, resistors and a switch
How does energy change as it moves through this circuit?
What is electrical energy moves from the battery through the wires into the filament where the energy changes to heat which gets hot and gives off light energy
A harp is an example of transforming electrical energy into sound energy
False (motion energy into sound)