Static Electricity
Electrical charge is a property of ______.
matter
insulator
What is an electric current?
A flow of electrical charges.
Electrical energy can be converted into 3 main things. What are they?
1. heat
2. light
3. motion
This is something that people decorate and put lights and ornaments on. All the presents go under this thing. What am I?
A Christmas Tree
There are two types of electrical
charges. What are they?
Positive and Negative Charges
metal
conductor
What is the difference between an electric current and static electricity?
Static electricity charges build up
and stay in one place. Electric current keeps
charges moving, like water flowing in a river
or stream.
What are transformers are used for?
Transformers are used to change the voltage of electric current.
This is a popular thing that goes on top of the Christmas Tree.
A Star
Two positive (+) charges ____ each
other.
Positive and negative charges _____ each other.
repel
attract
plastic
insulator
A simple circuit has three basic parts. What are they?
1. Power source, like a battery
2. Connectors, such as wires
3. Switch
What does a circuit breaker do?
A circuit breaker stops the flow of charges by switching off the current if it gets too high.
People hang these along their fireplace they look like big socks. What am I?
Stockings
What is an insulator and what is a conductor?
Insulators are materials that do not let charges
flow through them easily.
Conductors are materials that let
charges flow through them easily.
glass
insulator
What is the difference between a closed and open circuit.
What are three ways heat electrical energy is used?
Cooking food, drying clothes, using a hair dryer etc.
Red and White
The buildup of electrical charges on
an object is called ______ _______.
static electricity
copper and silver
conductors
The amount of current that flows through a
circuit depends on ______ and ______.
voltage and resistance
What is the difference between an incandescent (in•kuhn•DES•uhnt) bulb and a fluorescent (flaw•RES•uhnt) bulb?
An incandescent bulb produces heat and light.
Inside an incandescent bulb is a
thin wire called a filament. As the
filament resists electric current, it
heats up and glows.
A fluorescent bulb uses a gas to produce light. Electric current makes the gas glow. Fluorescent
bulbs do not become as hot as incandescent bulbs.
What is always the date for Christmas?
December 25th