Unit 2 Science Flashcard

Front

Conductor

Back

a material through which heat or electricity flows rapidly, like metal.

Front

What is an insulator?

Back

a material through which heat or electricity flow slowly; stops the flow; wood and wool

Front

Electric Circuit

Back

a closed pathway or loop which electricity flows

Front

True or False: Electric currents are classified as AC or DC according to the wires that carry them.

Back

False

Front

True or false: Different types of electric currents are needed to produce light, heat, and sound.

Back

False

Front

An electric current always flows in a closed path, or loop.

Back

True

Front

True or False: Copper wires can carry an electric current because copper is an excellent conductor.

Back

True

Front

True or False: Electric currents can be used to produce motion, sound, heat, or light.

Back

True

Front

Fill in the blank: Generators convert ______ energy to electrical energy.

Back

mechanical

Front

Three fans are connected to a battery in an electrical circuit. When one fan is removed from the circuit, the two remaining fans spin faster. What if we remove another fan?

Back

The fan will spin faster