Laws and Circles
More Laws and Related Stuff
Simple Terms
Tricky? forces (g=10m/s/s)
More from the Warm-Ups and Elsewhere
100
Action/Reaction forces are equal and opposite
Newton's 3rd
100
Fnet = ma
100
What we call a measurement that has both magnitude and direction
Vector
100
Applied force required to lower a 2kg ball at a downward rate of 4m/s2.
12N
100
The concept demonstrated this warm-up. One word.
Inertia
200
Gm1m2/r2 = Fg
Newton's Law of gravitation
200
All orbits are elliptical, and the object being orbited is at one of the ellipse's foci.
Kepler's 1st
200
The condition in which net force = force of Earth's gravity
Free-Fall
200
The string with the most tension...
Left
200
Without this force, this demo won't work [something other than gravity]
Friction
300
Regardless of its distance from the planet being orbited, a satellite "sweeps out" equal areas in equal times.
Kepler's 2nd Law
300
The law that tells us that planets move more slowly when they are farther from the Sun.
Kepler's 2nd.
300
A force that exerts itself equally, in both directions, at every point within a string.
Tension
300
200N
300
The velocity of the O.
Zero
400
An object does not accelerate unless it is acted upon by a non-zero net force.
Newton's 1st
400
If mass of an object decreases, but it continues to experience the same net force, this is what happens to its acceleration.
More acceleration
400
The horizontal distance that a projectile travels during a symmetric flight.
Range
400
What you have to do to win a tug-of-war match.
Push the Earth harder than the other team pushes the Earth.
400
It's the main reason why clouds don't fall.
Their tiny particles have very slow terminal velocities.
500
For every object in a solar system, the ratio of the square of its orbital period to the cube of its orbital radius is the same.
Kepler's 3rd Law
500
This is the action that causes the reaction of a rocket ship to accelerate in the vacuum of space.
Rocket's exhaust is pushed out.
500
The name for the acceleration of an object in uniform circular motion.
Centripetal
500
Three motionless ships of varying mass (100kg, 1,000kg, and 10,000kg), but otherwise identical characteristics, are shot with cannonballs of identical mass that embed in the ships, causing them to float backward. If the impact time is the same, which ball exerts the most force on its target?
The one that hits the 10,000kg ship
500
The name of the force that is most directly responsible for the person's acceleration.
Friction