Newton
Newton's Gravitational Law measures the force between any two _____________
masses
WHEN DEALING WITH CHARGES, LIKE ONES WILL DO THIS.
repel
Coulomb's law measures the force between two....
Charges
What is the definition of a force?
A push or pull on an object
Two objects are 1 m apart. Object 1 has a mass of 1 kg and a charge of 1 C, object 2 has a mass of 2 kg and a charge of 2 C, which force will be stronger between the objects, the gravitational force or the electric force?
Electric force
This force exists between any two masses
gravity or gravitational force
ACCORDING TO CONSERVATION LAWS, CHARGES CANNOT BE THIS.
created or destroyed
Two positive charges with no other forces working on them will move in what direction?
Away from one another.
What do we call it when there are equal but opposite forces working on an object?
Equilibrium
Two objects are 1 m apart. Object 1 has a mass of 1 kg and a charge of +1 C, object 2 has a mass of 2 kg and a charge of +2 C, no other forces are acting on the objects. Which direction will the objects move?
Away from one another.
The force of gravity will always try to make the objects to move ___________________.
Toward one another.
WITH CHARGES OPPOSITES DO THIS.
Attract
What is the variable we use for the Coulomb's constant?
k
What are the units we use for force?
Newtons (N)
What is the electric force between an object with a 0.5 C charge and another object that is 0.02 m away and has a -0.5 C charge. (Remember to include units!)
5.6x10^12 N
If one mass is doubled, but the other mass stays the same, what will happen to the force of gravity between the two masses?
The force will double
COULOMB'S LAW SAY THAT INCREASING THE SIZE OF THE CHARGE WILL DO THIS TO THE FORCE.
Increase the force
If one charge decreases to half of its original charge, what will happen to the force between the the charge and another charge?
The force will decrease by half.
True or False: In order for an object to exert a force on another object, the objects have to be touching.
False
What is gravitational force between a 10,000 kg object and a 50,000 kg object when they are 0.1 m away from one another?
3.335 N
This factor affects the gravitational force between two objects the most.
The distance between the objects
LAWS OF ELECTROSTATIC FORCE AND GRAVITATION SAY THAT INCREASING THE DISTANCE BETWEEN CHARGES OR MASSES WILL DO THIS TO THE FORCE BETWEEN THEM.
Decrease the force.
There needs to be two of these for there to be an electrostatic force.
Charges
What is relationship between the gravitational force that object 1 exerts on object 2 and the gravitational force that object 2 exerts on object 1?
The are equal in magnitude, opposite in direction.
What variables affect the force of gravity between two objects, what variables affect the electric force between two objects, and what are the values of 'k' and 'G'?
gravity: mass and distance
electric: charge and distance
k: 9x10^9 Nm^2/kg^2
G: 6.67 x 10^-11 Nm^2/C^2