A collection of lesson plans, presentations, tutorials, and games about magnets.
Science > General
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The position of an object can be described by locating it relative to another object or the background (e.g., on top of, next to, over, under, etc.).
The position or direction of motion of an object can be changed by pushing or pulling.
Magnetism is a force that may attract or repel certain materials.
The forces of gravity and magnetism can affect objects through gases, liquids, and solids.
The force of magnetism on objects decreases as distance increases.
The motion of an object is always judged with respect to some other object or point. The idea of absolute motion or rest is misleading.
The motion of an object can be described by its position, direction of motion, and speed.
An object's motion is the result of the combined effect of all forces acting on the object. A moving object that is not subjected to a force will continue to move at a constant speed in a straight line. An object at rest will remain at rest.
Force is directly related to an object's mass and acceleration. The greater the force, the greater the change in motion.
For every action there is an equal and opposite reaction.
Electric currents and magnets can exert a force on each other.
Gravitational forces are only attractive, whereas electrical and magnetic forces can be attractive or repulsive.
This unit will introduce students to magnets. It will provide an overview of what a magnet is, what kinds of objects are magnetic, and how magnets are used in everyday life. Students will participate in hands-on activities, using the scientific process to discover answers to their questions about magnets.
This is seventh lab/activity within an Electricity and Magnetism unit. This first magnetic lab uses the hands-on magnet activities to introduce the following key concepts: magnetic poles and their interactions, the earth as a magnet and how it interacts with magnets, visualizing and sketching two and three dimensional magnetic fields, magnetizing and un-magnetizing objects with respect to magnetic domains, the difference between temporary and permanent magnets.