ELECTRIC FORCES
WHAT TYPES OF CHARGES EXIST?
ELECTRIC CHARGES CAN BE POSITIVE OR NEGATIVE.
What are the two poles of a magnet?
Magnets have north and south poles.
What everyday example shows electric forces?
Sticking a balloon to a wall is an example of electric forces.
What are electric and magnetic forces?
The "invisible" force that can cause objects to move without touching.
WHAT DO CHARGES DO WHEN THEY ARE THE SAME OR DIFFERENT?
OPPOSITE CHARGES ATTRACT AND LIKE CHARGES REPEL
What happens when opposite or like poles are near each other?
Opposite poles attract and like poles repel.
What everyday example shows magnetic forces?
A magnet pulling a paperclip without touching it shows magnetic force.
What is a force?
The push or pull between charges or magnets.
What factors affect the strength of electric force?
The strength of electric force depends on the amount of charge and how far apart the charges are.
What do the poles of a magnet create?
Magnetic poles create magnetic fields.
What do electric and magnetic forces have in common?
Electric and magnetic forces can both attract and repel.
What is strength?
The measurement of how strong a force is.
What happens to force if charge increases?
If the charge on two objects increases, the force between them increases.
What does the size of magnetic force depend on?
The size of the magnetic force depends on the strength of the magnet and their distance apart.
What are real-world uses of electric and magnetic forces?
Scientists use these forces in motors and generators.
What is a field?
The space around a charge or magnet where it can exert force.
What happens to electric force if the distance doubles?
If the distance between two charged objects doubles, the force decreases significantly.
What makes magnetic force unique compared to normal pushing and pulling?
Magnets can push or pull objects without touching them.
What is created when electricity flows through a coil of wire?
Electromagnets are created when electric current flows through a wire coil.
What is distance?
What is distance?