Forces General
What combination of forces causes acceleration?
a. Unbalanced Forces
b. Balanced Forces
a. Unbalanced Forces
What is gravitational force?
The attractive force between objects with mass.
A build up of what, leads to electrostatic force?
Charges
What is a magnet?
A material that creates a static magnetic field causing it to attract or repel other magnetic materials.
What are the three colors of candy corn from top to bottom?
White, Orange, Yellow
What is inertia?
The tendency of objects to resist change.
"Objects in motion tend to stay in motion, and objects at rest tend to stay at rest until acted upon by outside forces."
What are the two factors that determine the strength of gravitation force?
The masses of the objects and the distance between them.
What is the tendency of two objects of the same charge?
Repell
What is the name for the "ends" of the magnets that either attract or repel other magnetic objects?
Poles
What is the number one best selling candy across the world?
Snickers
Forces that can act without objects touching are called non-contact forces. Give three example of non-contact forces.
(100points per correct answer)
Gravitational, magnetic, and static electric forces.
What is air resistance?
The force that objects experience in Earth's atmosphere as they fall down due to gravity.
How do neutral objects become charged?
(think on an atomic level)
Transfer of electron
What is the special pattern of movement followed by the electrons in magnetic object?
Spinning in the same direction.
What is the most commercially successful horror movie of all time?
It
What force is generated between two surfaces that oppose the motion of objects?
Friction
What is the acceleration rate at which objects fall to the ground on Earth?
9.8 m/s2
In an electric field, what decreases as the distance increases?
Srength
What is an electromagnet?
A device that creates magnetic fields through moving electric currents.
The name Halloween original came from the abbreviation of which phrase?
All Hallows Eve
What force is transmitted through rope, cable, or wire?
Tension Force
Which scientist's model of gravity assumes that the mass of objects is distorting space-time, explaining planets in orbit?
Albert Einstein
Three ways that an object could become electrically charged.
(100 points per correct answer, 500 points for all three together)
Conduction, polarization, and friction?
What three metals are commonly called "ferromagnetic" -- meaning they naturally have a magnetic field?
(100 points per correct answer, 500 if you get all three)
Cobalt, iron, and nickel.
Halloween is based off of another holiday that is said to be over 4,000 years old. The original holiday was similar to New Years in the sense that this culture saw it as the last day of the year. This culture also believed that it was a night in which the veil between the living and dead realms was very thin and so they would often dress up and have bon-fires to scare away unwanted spirits.
What is the original name of the holiday that Halloween is based off of? What country does it come from?
(200 points per correct answer, 500 points for both)
Samhain (Pronounced "Sauw-in")
Ireland
"Oíche Shamhna shona daoibh" -> Happy Halloween in Irish