Lesson 1 Gravity
This is the pull that we associate with planet Earth
What is gravity?
This quantity of charges gives us a stronger electric force field
What are a large amount of charges?
These are devices that transfer or transform energy by providing a path for an electric current
What are circuits?
These are defined as a device that transforms motion energy to electric energy.
What are generators?
This number (and unit) is the acceleration due to gravity constant
What is 9.8 m/s2
Air resistance affects objects with this kind of surface area?
What is large surface area (and a small mass)
The amount of charge and the distance between objects determine this.
What is the strength of electric force?
DOUBLE
These are the path(s) within a circuit
What are wires?
DOUBLE
This moving subatomic particle creates a magnetic field
What is the electron (negative)?
Remember, your subatomic particles also consist of the proton (positive charge) and the neutron (no charge)
L. 1
These types of force fields were first introduced here and also facilitate the movement of electromagnetic waves from Module 8
What are electric and magnetic force fields?
This Italian proved acceleration due to gravity by dropping two spheres of different sizes from the Leaning Tower of Pisa
Who is Galileo?
These are the two minerals found in lodestone that make permanent magnets.
What are magnetite and ferrite?
These are circuits with a SINGLE path
What are series circuits?
Remember, circuits with MULTIPLE paths are called "parallel circuits"
This is a machine powered by gas or electricity that supplies power for a device with moving parts
What is a motor?
L. 4
There are this many widespread uses of generators.
What is 3?
Remember, they are large power plants, rural locations off the power grid, and in cars and trucks. In cars and trucks, the part is called an alternator and it charges the battery as the car drives.
The pull of these two celestial bodies keep Earth in Orbit and cause the ocean tides
What are the Sun and Moon?
When an object is electrically charged, what 2 options does the object have?
The object attracts/repels other objects, or the charges flow to other objects
These are the three electrical quantities that we measure in an electric circuit.
What are voltage measured in volts, current measured in amps, and resistance measured in Ohms.
This is the concept of setting one force field in motion to create the opposite type
What is electromagnetism?
Remember, this is the work from English scientist Michael Faraday
L. 2
This is a phenomenon that’s related to electricity and is defined as a phenomenon caused by magnetic objects exerting forces on each other over a distance
What is magnetism?
We covered Newton's Law's and Einstein's Theory in Module 5 Lesson 1. How many laws and theories did we cover in total?
3 Laws and 1 Theory
DOUBLE
The Earth's geographical North pole has this charge, and the magnetic North pole has this charge.
Geographic has a POSITIVE CHARGE and magnetic has a NEGATIVE CHARGE
Remember, they are OPPOSITES.
Outlets will have 2 values depending on the strength needed to power certain electrical devices. These are the two values.
What are 120 volts (smaller electronics) and 240 volts (larger appliances).
Remember, the standard wiring in households in the United States is based on the parallel circuit design.
Michael Faraday's motor consisted of these 3 parts.
What is a battery, a wire, and a mercury bath?
Remember, Faraday is credited with inventing the generator, and being a large contributor to the invention of the motor.
DOUBLE. L. 2
These are the 3 magnetic metals
What is iron, nickel, and cobalt?
Remember, steel is NOT a magnetic metal because steel is a COMPOSITE MATERIAL; one of its components is IRON so that is why it is magnetic.