Magnets
All magnets have this many poles.
What are 2 poles?
This is produced by a flowing electric current.
What is a magnetic field?
These are forces that can act at a distance.
What are non-contact forces?
This is what the force acting on an object is if the net force is not equal to 0N.
What is an unbalanced force?
These are the pair of forces that always act together on an object.
What are the action and reaction forces?
This is the pole the red north needle on a compass will point towards if placed on top of a bar magnet.
What is the south pole?
What turns electric energy into kinetic energy?
What is a motor?
This is the total force acting on an object once all forces have been added or subtracted.
What is net force?
This is what the force acting on an object is if it's net force is equal to 0N.
What is a balanced force?
This is what causes an object to continue doing what it is doing.
What is inertia?
This is the invisible field around a magnet that will attract or repel other similar fields or ferromagnetic material.
What is a magnetic field?
This is the process of generating an electric current with a magnetic field
What is electromagnetic induction?
Mass, force, and acceleration are measured in these units respectively.
What are kilograms (kg), Newtons (N), and meters per second squared (m/s2)?
This is what it means when an object has a net force of 0N.
What is having no acceleration?
If a balloon is released to fly across the room, this is the force that propels it forward.
What is the reaction force?
How can you turn a ferromagnetic material into a magnet?
What is rubbing it against a stronger magnet?
This is what turns kinetic energy into electric energy.
What is a generator?
This is the acceleration due to gravity.
What is 9.8 m/s2?
This is when an object is speeding up, slowing down, or turning.
What is acceleration?
This is the force required to move a 10kg object with an acceleration of 5m/s2.
What is 50N?
These lines go from north to south.
What are magnetic field lines?
This is how electromagnetic induction works.
What is moving a coil of wire through a magnetic field?
Name all of the forces represented by this image.
(Drawn on the board)
What are gravitational force, applied force, frictional force, and normal force?
These are the traits of a vector.
What are magnitude and direction?
Explain all 3 of Newton's laws of motion.
1st: an object in motion will stay in motion, and an object at rest will stay at rest unless acted upon by an outside force.
2nd: the greater the mass of an object, the more force it will take to accelerate the object. F=ma
3rd:for every action there is an equal and opposite reaction.