Review
Electric Force
Magnetic force
electromagnet
(Blank)
100
What are newton's laws?
1 - the law of inertia
2 - mass * acceleration = net force
3 - every action has an equal and opposite reaction
100
What are electrons, protons, and neutrons?
electron - negative charge
proton - positive charge
neutron - neutral charge
100
What is a magnet?
Any material that attracts iron and materials that contain iron
100
what is electromagnetism?
The relationship between electricity and magnetism
100
What is a Galvanometer?
A device that uses an electromagnet to detect small amounts of currents
200
What is Relative motion?
motion relative to another object
200
What are a conductor and an insulator?
conductor - allows for electricity to travel through an object (ex. Copper)
insulator - doesn't allow for electricity to travel through an object (ex. rubber)
200
What is magnetism?
The force of attraction or repulsion of magnetic materials.
200
what is a Solenoid?
A coil of wire with a current
200
What is the difference between an Electric Motor and a Generator?
An electric motor takes electric energy and turns it into mechanical energy.
A generator takes mechanical energy/chemical energy and turns it into electrical energy.
300
Measurements?
Force - measured in newtons
acceleration - m/s^2
Mass - Kg
300
What is static discharge?
When you get electrically shocked when all the electrons discharge on an object.
300
What is a magnetic field?
The region around a magnet where the magnetic force is exerted.
300
What is an Electromagnet?
A magnet created by wrapping a coil of wire with a current running through it around a core of material that is easily magnetized.
300
What is Electromagnetic Induction?
Generating an electric current from the motion of a conductor through a magnetic field. (there are 2 ways)
#1 - magnets inside conductor rotating
#2 - conductor rotating around a magnet
400
What is the net force?
90 Newtons to the left, and 70 Newtons to the right, what is the net force?
All the forces acting on an object
20 Newtons to the right
400
What is an electric current?
the continuous flow of electrical charges through a material.
400
What are magnetic interactions?
The different ways that living things communicate with, act toward, and influence each other
400
What is different between an electromagnet and a solenoid?
A solenoid is a coil of wire with a current and an electromagnet is a solenoid with a ferromagnetic core.
400
What are the two types of Transformers?
Step-up = increases voltage on the secondary side
Step-down = decreases voltage on the secondary side
500
What are the frictions?
Sliding, Fluid, Rolling, and static
500
What is an electric field?
The region around a charged object where the object’s electric force is exerted on other objects.
500
What is the same between electricity and magnetism?
- they both have field lines, likes repel and opposites attract and potential energy is the same
500
What is the Right-hand rule number 2?
Do it and then look at the picture
500
What is an example of the natural generator?
A windmill and a dam.
They both have turbines inside them that use mechanical energy to make electricity.