Forces and Fields Flashcards
What is the core of the earth
A giant ball of molten iron at the center of the earth that creates the earth’s magnetic field
What is the scientific name for when your socks stick together
electrostatic force
What is the definition of the four fundamental forces
Four fundamental forces that affect everything
What is another name for the four fundamental forces
the four fundamental interactions
Who published the law of universal gravitation and when
Isaac Newton in 1687
WHat was the universal gravitation law?
The law that everything had mass and exerted gravitational force on everything around it that had mass
Who came up with the idea of geometrical space-time folding in on everything around it
Einstein
WHat is Einsteins theory of gravity based around
The bending and folding of spacetime
WHat is the force of gravitational attraction called
An inverse-square law
What is the inverse square law
The law where the strength of the force varies inversely in proportion to the square of the distance from the object causing the force.
What is the equation for the force of gravity?
F=k?d squared
What are the four fundamental forces (or interactions)
1) Electromagnetic Force
2) Strong Nuclear Force
3) The Weak Nuclear Force
4) Gravitational force
What is the electromagnetic force
The force of electricity and magnetism (very closely related)
What is something related to magnetism that is super weird
That nothing truly touches anything because of the electromagnetic exchanges and repulsion
What is the STRONG nuclear force
The force nuclear energy, which is the strongest force of them all
