May the FORCE Be With You
A push or pull that acts on an object
What is force?
A force that results when surfaces of objects rub against each other and opposes motion.
What is friction?
The motion of an object when it is falling solely under the influence of gravity.
What is free fall?
This is Newton's first law of Motion, also referred to as the law of inertia.
What is: An object in motion (or at rest) will stay in motion (or at rest) until it is acted upon by an outside force?
Believe it or not, physicists believe these are the only four different kinds of force in creation.
What are electromagnetic, strong nuclear, weak nuclear, and gravitational forces?
This is an object's tendency to resist changes in its velocity
What is inertia?
The SI unit for force
What is the newton, abbreviated as N?
Static, Kinetic, Rolling, and Fluid.
What are the four types of friction?
A feather and a bowling ball will fall at the same rate in the _______ of gravity.
In the absence of gravity, a heavy object will fall at the same rate as a light object. Watch here:
In layman's terms, the harder you kick the ball, the more it accelerates.
What is Newton's second law of motion, or when an object is acted upon by one or more unbalanced forces, the net force is equal to the mass of the object times the resulting acceleration?
This is the only force that can be attractive or repulsive.
What is the electromagnetic force?
Quantum theorists pose that this small force-carrying particle is responsible for the force of gravity.
What is a graviton?
The English physicist who explained the relationship between force, mass, and acceleration - He got a scientific measurement, not a fig cookie, named after him.
Who is Sir Isaac Newton?
The frictional force that acts on stationary objects
What is static friction?
The acceleration, due the gravity, near the surface of the Earth.
What is 9.8m/s2 in metric units (or 32 ft/s2 in English units)?
The formula to go along with Newton's second law of motion
What is:
f=mxxa
This, which acts over a very short distance and is the strongest of the fundamental forces, is the reason why protons do not repel each other.
What is the strong nuclear force?
According to the current model of the atom, protons are made up of these even smaller particles, which are held together by these force carrying particles.
(two part answer)
What are quarks and gluons?
The net force on an object when forces are balanced and there is no change in the object's motion.
What is zero?
The frictional force that opposes motion once motion has already started is best known as this type of friction.
What is kinetic friction? (also accept sliding or dynamic)
The equation to determine the distance an object falls, is respect to acceleration and time
What is
d = 1/2 x a x t2
Newton's third law states this.
What is: for every action, there is an equal and opposite reaction?
This force plays an important role in nuclear fusion, the reaction that powers the sun and hydrogen bombs.
What is the weak nuclear force?
This theory was developed by Albert Einstein in 1916 and attempts to explain a different way of looking at physics.
What is the General Theory of Relativity?
When an unbalanced force acts on an object, this happens.
What is acceleration?
The frictional force that acts on rolling objects
What is rolling friction?
Heavy objects fall faster than light objects not because their acceleration due to gravity is larger, but because they are not as strongly affected by this as light objects are.
What is fluid friction or air resistance?
The equal and opposite forces in Newton's third law do not act on this (or there would never be acceleration)
What is the same object?
Developed by Newton, this law states that every object attracts every other object.
What is Newton's law of universal gravitation?
Mass is the measure of an object's inertia, while weight is this.
What is the force of gravity acting on an object?