lab 2 physics

Two charges are arranged such that there is a 36 N repulsive force between them. What would be the new force if the distance between the two charges was tripled?

4 N

The unit of force exerted on a test charge is

Newtons

What happens to the charge on the Ice Pail when you rub the inner pail with a positively charged disk and then remove the charged disk?

becomes positively charged

What happens to the charge on the Ice Pail when a positively charged disk is lowered into the pail without touching the inner wire mesh cylinder?

charge remains the same

A car is struck by lightning. The resulting electric field inside the car is

zero

An initially uncharged metal sphere is charged by using a negatively charged rod through ______ process, if the charge accumulated on the sphere is negative.

conduction

An electrometer connected between the inner pail and the shield will detect ______

Potential difference

Coulomb's law says that the force between any two charges depends

Both A and B

There are two copper spheres, each hanging from an insulating nylon thread. One of the spheres has a net negative charge, while other sphere has neutral charge. If the spheres are close together but do not touch, they will ______________.

Attract each other

What happens to the charge on the Ice Pail after the positively charged disk is lowered into the pail without touching the inner wire mesh and removed from the inner pail?

Charge remains same

The force between two point charges F is given by F = k q1q2/r2, where k = 9x109 Nm2/C2. If q1=q2=10-9 C is separated by 1 cm, what is the magnitude of force exerted on q2 by q1?

9x10-5 N

Two balloons with charges of -5 nC and -3 nC repel each other with a force of 0.094 N. Determine the separation distance between the two balloons.

1.2mm

An initially uncharged metal sphere is charged by using a positively charged rod through ______ process, if the charge accumulated on the sphere is negative.

Induction

The algebraic sum of all the electric charges in any closed system is ________

Constant

Two like charges ___________

repel each other

A system as a whole is neutral because the total charge is _________

zero

What can you conclude about the charge on the sphere vs. the electric potential (voltage) of the sphere?

The electric potential of the sphere is directly proportional to the charge of the sphere.

The electric field inside a conductor in electrostatic equilibrium is

Zero

The Faraday Ice Pail is momentarily grounded while a negatively charged disk is still inside the inner wire mesh cylinder. What happens to the charge on the Ice Pail when the charged disk is removed?

Becomes positively charged

What happens to the charge on the Ice Pail when the Ice Pail is momentarily grounded while a negatively charged disk is still inside the inner wire mesh cylinder?

Becomes neutrally charged

The magnitude of electric force between two point charges is ____________ the square of the distance between them.

Inversely proportional to

What can you conclude about the distribution of charge on a spherical conductive sphere?

Charges are distributed uniformly on the surface of the conductive sphere.

A positive charge is brought very close but not touching to an uncharged conductor which is insulated from the ground. The conductor is then grounded while the charge is kept close. After removing the nearby charge, the ground connection from the conducto

no net charge

What happens to the charge on the Ice Pail when a positively charged disk is placed just outside the outer wire mesh shield?

charge remains the same

The unit of electric field produced by a point charge is

Newtons/ Coulombs

Two charges placed 1m apart from each other exert a 1N force on each other. If the charges are pulled to 2 meters apart, the force on each charge will be

0.25 N

Two charges are arranged such that there is a 36 N repulsive force between them. What would be the new force if the charge on one of the two charges was doubled?

72 N

A positively-charged wand is lowered into the Faraday Ice Pail without touching it to the pail. _______ charges in the pail moves to the inner surface of the pail leaving ________charges on the outside.

Negative, positive

A metal sphere with a charge of -10 C came into contact with an identical neutral sphere. After contact, the charge on the latter sphere is

-5 C

An initially uncharged metal sphere is charged by using a negatively charged rod through ______ process, if the charge accumulated on the sphere is positive.

Induction

There are two copper spheres, each hanging from an insulating nylon thread. One of the spheres has a net positive charge, while other sphere has neutral charge. You allow the spheres to touch. After they touch, the two spheres will _______________.

Repel each other

After combing your hair, if the comb becomes positively charged, your hair becomes

Negatively charged

Two unlike charges ___________

Attract each other

The unit of charge is

Coulombs

If charges are shared by two unequally sized spheres, which one will have the lesser charge when equilibrium is reached?

The smaller sphere

An initially uncharged metal sphere is charged by using a positively charged rod through ______ process, if the charge accumulated on the sphere is positive.

Conduction

The Faraday Ice Pail works on the principle that any charge placed inside a conducting surface will induce _________ on the outside of the surface

An equal charge

There are two charges of charge +1 �C and +2 �C. The ratio of forces acting on them by each other is

1:1

If charges are shared by two unequally sized spheres, which one will have the larger charge when equilibrium is reached?

The larger sphere

An irregularly shaped conductor accumulates most charges at _______ of the object.

Sharp curves