Standards with the same topic and subject but for other grades
plan and conduct an investigation to determine the strength of an electromagnet (5.4 e)
a current flowing through a wire creates a magnetic field.
construct a simple electromagnet using a dry cell, wire, nail, or other object containing iron (5.4 e)
define a problem and design a solution that uses an electromagnet; demonstrate and explain how the electromagnet works (5.4 e).
A current flowing through a wire creates a magnetic field. Wrapping a wire around certain iron-bearing metals (e.g., an iron nail) and creating a closed circuit is an example of a simple electromagnet. The strength of an electromagnet is mainly affected by the number of coils, the amount of current, the gauge of the wire, and the iron core (5.4 e).
identify items in the home or school that contain a magnet or magnets, such as can openers, magnetized screwdrivers, magnetic games, magnetic cabinet door latches, refrigerator magnets, and magnetic letters.
create a model of a simple circuit and explain how it works (5.4 b)
The student will investigate and understand that electricity is transmitted and used in daily life. Key ideas include a) electricity flows easily through conductors but not insulators; b) electricity flows through closed circuits; c) static electricity can be generated by rubbing certain materials together; d) electrical energy can be transformed into radiant, mechanical, and thermal energy; and e) a current flowing through a wire creates a magnetic field.
A closed circuit allows electricity to flow within the circuit. If there is an opening in the circuit, electricity will not flow (5.4 b).
create a functioning simple circuit and explain how the circuit works, using appropriate scientific terms (5.4 b)