Let’s get down to business in this quiz on the scientific study of physics, as we turn our attention to such topics as conduction, repulsion, electricity, force, static energy, and much more. What can you tell us?
Neither bead can be charged
At least one of the beads must be charged
Both beads must be charged and with the same sign charge.
Both beads must be charged and with opposite sign charges.
None of these
Neutral
Opposite that of the charged rod
The same as that of the charged rod.
- if the rod was -, but neutral if the rod was +
+ if the rod was + but neutral if the rod was -
Weakly attracted by - charged objects
Weakly attracted by + charged objects
Weakly repelled by neutral objects
Both a and b
All correct
1/25 as great as it had been
4/25 as great as it had been
1/9 as great as it had been
25 times as great as it had been
None of these
Surrounds a charge
Is said to exist in a region where a net force will act upon a stationary charge
Is where corn and soybeans are grown beneath high voltage transmission lines
Both a and b
None of these
Inside any conductor
Inside any conductor with a static charge
Inside any material, conductor, or insulator with a static charge.
Never
Always
Zero
8.0E-31 n/c to the left
3.1E7 n/c to the left
3.1E7 n/c to the right
None of these
A positive ion at the center
Any "point" charge at the center.
An electron or a negative ion at the center
A dipole, a + and - charge pair, since the electric field goes both left and right, both up and down.
None of these.
Near the surface near a
Near the surface near b
With a static charge, the electric field intensity will be uniform around a conductor.
It will be strongest near a if the object is charged - and strongest near b if it charged +
It will be strongest near b if the object is charged - and strongest near a if it charged +
It is less than 10 - 10 N
7.1E -9 N
4.4 E -6 N
8.0 N
It is more than 10^2 N
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