-
A device that connects to an electrical circuit that can be turned on and off. Is it a
C. electromagnet
-
The winding of wire around a base to make an electromagnet stronger is?
D. Insulator
A. Coil
-
The center of the coils in an electromagnet. Often made of steel. Is it
A. Insulator
B. Conductor
C. Compass
D. Core
D. Core
-
The term for a switch when used in a telegraph machine is a ?
A. Key
-
Material which allows electricity to flow easily through is?
C. Conductor
-
Material which does not allow electricity to flow easily through is?
C. Insulator
-
A complete circle which electricity is able to flow through; often has wire, a battery, and a light bulb included is?
A. Circuit
-
An instrument used for finding direction is?
C. Compass
-
Iron or Iron alloy that can attract another piece of iron is?
C. Magnet
-
When two objects pull towards each other is?
A. Attract
-
Name three objects that will stick to a magnet?
metal chair, staples, magnetic whiteboard, paper clip, metal file cabinet, etc.
-
Name three objects that will NOT stick to a magnet?
wood, rubber, plastic, straw, etc.
-
What four directions do you find on a compass?
North, South, East, West
-
Name four objects that are considered insulators?
cardboard, rubber tire, glass window, water bottle, wood desk, piece of gum, etc.
-
What is the name of the international code that is made up of short and long clicks and are put together to form words and messages?
Morse Code
-
Explain what you would do to an electromagnet to make it stronger and able to pick up more washers?
add more batteries or a bigger battery, add more coils around the core.
|
|
