Free Printable REMEDIATION: Coulomb's Law

1.

What is the electrostatic force between two charged particles?

a)

$18\times10^9\ N$

b)

$9\times10^{9\ }N$

c)

$5\times10^9\ N$

d)

$10\times10^9\ N$

2.

What is the electrostatic force between two charged particles?

a)

$18\times10^9\ N$

b)

$54\times10^9\ N$

c)

$12\times10^9\ N$

d)

$6\times10^9\ N$

3.

What is the electrostatic force between two charged particles?

a)

$12\times10^9\ N$

b)

$96\times10^9\ N$

c)

$120\times10^9\ N$

d)

$180\times10^9\ N$

4.

What is the electrostatic force between two charged particles?

a)

$16\times10^9\ N$

b)

$-16\times10^9\ N$

c)

$36\times10^9\ N$

d)

$-36\times10^9\ N$

5.

What value is a Coulomb the unit for?

a)

Charge

b)

Force

c)

Distance

d)

Mass

6.

When distance increases, electrostatic force ____________; we call this relationship ____________ proportional

a)

decreases;directly

b)

decreases;inversely

c)

increases;inversely

d)

increases;directly

7.

Which is the value of the constant in Coulomb's equation?

a)

k = 9·10^-9

b)

k = 9.8

c)

k = 6.67·10^-11

d)

k = 9 ·10⁹

8.

What variable is used to denote "charge"?

a)

k

b)

q

c)

r

d)

e

9.

What does the "k" represent in Coulomb's Law?

a)

charge

b)

Coulomb's Constant

c)

kilometers

d)

distance between charges

10.

The Electric Force is strongest when charges are...

a)

close together

b)

far apart

c)

the electric force is constant everywhere

11.

Select all answer that apply:

What kinds of particles do Coulomb's Law apply to?

a)

electrons

b)

protons

c)

neutrons

d)

neutral atoms

12.

The variable "r" in Coulomb's Law would have what units?

a)

Joules

b)

Coulombs

c)

Newtons

d)

Meters

13.

An attractive force exists between which two particles?

a)

Two neutrons

b)

An electron and a neutron

c)

An electron and a proton

d)

Two electrons

14.

What happens to the force between two charged objects if you double the distance between them and double the magnitude of one charge?

a)

4X

b)

6X

c)

1/2X

d)

1/6X

15.

If each of the charges doubles, what happens to the force?

a)

Quadruples

b)

Doubles

c)

Stays the same

d)

Reduced by half

16.

Electrostatic force F is directly proportional to:

a)

r^2 (distance squared)

b)

q1

c)

q2

d)

both q1 and q2

17.

Calculate the force exerted between two charged objects separated by a distance of 0.6 m. One object has a charge of -5 C and the other has a charge of +2.0 C.

a)

-1.5E-11 N

b)

2.5E-11 N

c)

-2.5E11 N

d)

-7.5E-10 N

18.

A 2-C charge and 4 -C charge attract each other with 10 N of force. How much will a 2-C charge and 8-C charge attract each other when placed the same distance apart?

a)

5 N

b)

12 N

c)

10 N

d)

20 N

19.

Two like charges

a)

neutralize each other.

b)

repel each other.

c)

must be neutrons.

d)

attract each other.

REMEDIATION: Coulomb's Law

Total questions: 19

Worksheet time: 40mins

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