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Quiz 7: Electricity

Total questions: 20

Worksheet time: 21mins

Name
Class
Date
1.

Protons have a ​ (a)   charge and electrons have a ​ (b)   charge.

Choose from the below words
positive
negative
neutral
2.

The force between electric charges depends on...

a)

the mass of the charges

b)

the distance between charges

c)

the amount of charge

d)

the velocity of the charges

3.

A(n) ​ (a)   is a material through which electrons (and therefore charge) move easily.

A(n) ​ (b)   is a material through which electrons (and therefore charge) do not move easily.

Choose from the below words
conductor
insulator
circuit
current
4.
A region around charged objects where the object´s electric force is exerted on other charged objects is an electric: 
a)

Field

b)

Outlet

c)

Socket

d)

Domain

5.
The closer the charges, the ___________ the force between them
a)
closer
b)
further
c)
stronger
d)
weaker
6.
An object becomes charged when the atoms in the object gain or lose
a)
electrons
b)
protons
c)
neutrons
d)
all of the above
7.

Which type of charged particle moves from one object to another to cause static electricity?  

a)

Atom

b)

Proton

c)

Electron

d)

Neutron

8.
If an object has the same number of positive and negative charges, its electrical charge is...
a)
positive
b)
negative
c)
neutral or no charge
d)
opposite
9.

An electrostatic force of 20 Newtons is exerted on a charge of 0.08 Coulombs at some location within an electric field. What is the magnitude of the electric field intensity at that location?

a)

1.6 N/C

b)

20 N/C

c)

250 N/C

d)

0.004 N/C

10.
If 500 J of work are required to carry a 40-C charge from one point to another, the potential difference between these two points is: 
a)
12.5 V 
b)
20,000 V 
c)
0.08 V 
d)
depends on the path 
11.
The potential difference between two points is 100 V. If a particle with a charge of 2 C is transported from one of these points to the other, the magnitude of the work done is: 
a)
200 J
b)
100 J
c)
50 J
d)
2 J
12.
Current is...
a)
moving protons
b)
moving electrons
c)
measured in volts
d)
measured in ohms
13.

A potential difference of 24 V is applied to a 150 resistor. How much current flows through the resistor?

a)

0.15 A

b)

3600 A

c)

6.25 A

d)

0.16 A

14.

Which is the right form of Ohm's Law?

a)

V=I/R

b)

V=R/I

c)

I=V/R

d)

I=R/V

15.
Circuits often include a _____________ to control the flow of current.
a)
switch
b)
conductor
c)
voltage
d)
current
16.

What is not needed in order to create a working circuit?

a)

battery (power source)

b)

lightbulb

c)

current

d)

closed circuit

17.

What is the voltage of a circuit with 4 ohms of resistance and 3 amps of current?

a)

12 V

b)

21 V

c)

4/3 V

d)

3/4 V

18.
What does power mean?
a)
Joules transferred per second
b)
Electron flow per second
c)
Speed of electrons
d)
Electron energy
19.

This is an example of a ______ circuit

a)

Series

b)

Parallel

c)

Open

d)

Dihexihedral

20.

This is an example of a _______ circuit

a)

open

b)

series

c)

parallel

d)

square

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