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WorksheetsElectrostatic Charge Coulomb's Law and Electric Field 22-23
Total questions: 33
Worksheet time: 33mins
After you rub a balloon on your hair, what charge does the balloon have?
Positive
Negative
Neutral
Zero
Insulators are different than conductors, insulators ____.
do not contain electrons or protons
do not contain any charge
have a weaker affinity for electrons
do not allow charge to freely move
Two electrically charged identical-sized metal spheres, A (charge of -4C) and B (charge of +8C). If the spheres are brought into contact, which sphere will have a net gain of electrons?
both A and B
neither
only A
only B
What is it called when an object gains a charge, touched by another charged object?
Induction
Convection
Conduction
Radiation
What is it called when an object gains a charge without touching another charged object but by being held near the charged object?
Induction
Convection
Conduction
Radiation
electricity produced by like electric charges attracting
electricity used for powering radios and televisions
a buildup of balanced electric charges
a buildup of excess electric charge on object
Use the diagram to answer the question. A person received an electrical shock when reaching for the metal doorknob. The shock was caused by the
A low number of electrons on the doorknob
A discharge of an imbalance of electrons
A highly conductive surface of the doorknob
A low resistance of the person’s skin
The charge on a single electron is e- =
1.6 X 10-19 C
1.6 X 10-28 C
-1.6 X 10-19 C
-1.6 X 10-28 C
What value of one micro coulomb (1μc) represent =
1*10-6 C
1*10-9 C
1*10-12 C
1*10-14 C
In Coulomb's law, if the distance doubles, what happens to the force?
Reduced by half
Reduced by 1/4
Stays the same
Quadruples
decreases;directly
decreases; inversely
increases; inversely
increases; directly
Electrostatic force F is directly proportional to:
r^2 (distance squared)
Q1
Q2
both Q1 and Q2
How many electrons are necessary to produce 1.0 C of negative charge? (e = 1.60 × 10-19 C)
6.25 × 1018
6.3 × 109
1.6 × 1019
1.6 × 109
Which is the value of the constant (k) in Coulomb's equation?
k = 9*10-9
k = 9.8
k = 6.67·10-11
k = 9 *109
Which of the following states Coulomb's Law mathematically?
Felectric = kc (Q1Q2 / r2)
E = mc2
V = IR
F = ma
Label the charges in the given diagram (circle) from left to right respectively:
+; +
+; -
-; -
-; +
Which quantity and unit are correctly paired?
electric field and N/C
electricity and Coulombs
electrostatic force and electrons
electric field and E
Protons are bound in the _________. They typically do not_________.
electron, stay stationary
nucleus, move
neutrons, move
protons, stay stationary
The total amount of charge remains constant.
Law of conservation of charge
Law of conservation of energy
Law of conservation of mass
Law of conservation of heat
Electric field lines never cross one another.
False
True
Not sure
Don't know
Field lines show both the _________ of an electric field and the ________ due to a given charge.
direction, location
direction, relative strength
capacity, relative strength
force, direction
When an object gains electrons it becomes __________
Neutral
Positively charged
Negatively charged
How can a neutral object become charged?
by being dipped in water
by being stuck to the desk with tape
by allowing gravity to work on it
by having electrons added or removed
Where can an electric field be found?
below a force field
in a gravitational field
in the space surrounding a charged object
outside of a magnetic field
