Show:
Conduction and Induction
Work and Energy
Centripetal Force
Motion and Velocity
Vocab
100
What is the definition of conduction?
A transfer of charge through touch
100
What is the formula for work?
Force x Distance
100
What can happen if the centripetal force is perpendicular to the direction of the motion?
The object can follow the circular path
100
the speed of a train car if its distance time graph indicates that it traveled two hundred meters in 25 seconds, what is the average speed?
8 meters per second
100
What is the definition of Localization
.When a charge is in one area of and object.
200
What is a separation of charges when an object is neutral?
polarization
200
What is work?
W=F*D
200
From the centripetal force equation what happens when the straight line velocity of an object is doubled
The centripetal force must be four times as great
200
What is the formula for velocity?
v=D/T
200
Define displacement
your location in relation to your starting position
300
What is the method of induction?
An object transfers charges without touching the newly charged object
300
in physics when is work done on another object
When energy is transferred to one object to another
300
a string with a rock on the end makes a conical pendulum. the centripetal force that holds the rock in a circle of path is what?
The horizontal component of the strings tention
300
What is a balanced force?
equal forces that act in opposite directions of an object and cancels each other out
300
What is average velocity?
an objects displacement per unit of time
400
.What is the difference between induction and conduction?
Conduction is a form of transfer of energy through touching and induction is a transfer of energy without touching
400
What is Kinetic energy?
energy of motion
400
.when a railroad train rounds a banked track the centripetal force needed comes not from friction but from ______.
The horizontal component of the normal force
400
True or False: Acceleration is speed times interia
False
400
Acceleration is described as changes in _______, changes in ________ or both.
Speed and direction
500
What are three conductors and three insulators?
Conductors-gold, copper, salt water Insulators- Rubber, plastic, glass
500
What kind of energy is a ball rolling down a hill?
Kinetic energy
500
true or false: any force that causes an object to move in a circular path is called centripetal force.
True
500
The distance of an object traveled divided by the time it takes it to travel is what?
Speed
500
Define Newtons first law
An object in motion stays in motion, and an object at rest stays at rest