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Q 1/44
Score 0
Two positive charges
30
must be neutrons.
attract each other.
neutralize each other.
repel each other.
Q 2/44
Score 0
The charge of an electron is
30
electrons have no charge
negative
positive
44 questions
Q.
Two positive charges
1
30 sec
Q.
The charge of an electron is
2
30 sec
Q.
An atom loses an electron. What type of charge does it have now?
3
30 sec
Q.
An atom gains an electron. What type of charge does it have now?
4
30 sec
Q.
Charged objects are not attracted to neutral objects
5
30 sec
Q.
When a balloon is rubbed on clothes it acquires a charge by ___________
6
30 sec
Q.
When a glass rod is rubbed with silk and the glass rod becomes positively charged, what happens to the electrons?
7
30 sec
Q.
What is the name of the particle that is being transferred?
8
30 sec
Q.
What is the end result of charging by contact?
9
30 sec
Q.
Compared to insulators, metals are better conductors of electricity because metals contain more free_______________.
10
30 sec
Q.
After you rub a balloon on your hair, the balloon has a negative charge. What charge does your hair have?
11
30 sec
Q.
An atom that has more electrons than protons would have what charge?
12
30 sec
Q.
Which of the following statement is true about lightning?
13
30 sec
Q.
Lightning conductors are found on ________________.
14
30 sec
Q.
Staying in the closed car is safe during lightning and thunderstorms because________________.
15
30 sec
Q.
What does lightning strike mostly?
16
30 sec
Q.
What is current measured in?
17
30 sec
Q.
What is resistance measured in?
18
30 sec
Q.
Which word means how hard it is for electrons to flow?
19
30 sec
Q.
This is an example of a _______ circuit
20
30 sec
Q.
What are the two factors that influence resistance?
21
30 sec
Q.
The mathematical relationship between Voltage, Current, and Resistance:
22
30 sec
Q.
If the voltage is increased and the resistance stays the same, the current will
23
30 sec
Q.
If the Voltage stays the same and Resistance is increased, Current will
24
30 sec
Q.
Which word means how fast the electrons flow?
25
30 sec
Q.
In a series circuit, which of the following is the same throughout the circuit?
26
30 sec
Q.
In a series circuit, which of the following will vary based on the resistor?
27
30 sec
Q.
As the number of resistors increase, the total resistance ___________ and the total current ____________.
28
30 sec
Q.
A path that is made for an electric current is?
29
30 sec
Q.
If the current through a circuit is 2 A and the resistance of a light bulb in the circuit is 10 Ohms, what is the voltage difference across the light bulb?
30
30 sec
Q.
What 'flows' in a wire?
31
30 sec
Q.
A Charging system producing 14.5 Volts with a current flow of 43.5 Amps, what is the circuit resistance
32
30 sec
Q.
What would the circuit resistance be if a 7.5 Amp draw was present with the engine running and the charging system producing 15 Volts.
33
30 sec
Q.
How many Volts would it take to push 1 Amp through a resistance of 1 Ohm
34
30 sec
Q.
What is the device seen here?
35
30 sec
Q.
Using the right-hand-grip rule (solenoid), A represents
36
30 sec
Q.
Using the right-hand-grip rule (solenoid), B represents
37
30 sec
Q.
In the solenoid pictured, the south pole would be on the
38
30 sec
Q.
In the solenoid pictured, the north pole would be on the
39
30 sec
Q.
In the solenoid pictured, the south pole would be on the
40
30 sec
Q.
The picture shows an electrical circuit. This circuit is a series circuit because:
41
30 sec
Q.
What will happen if one light bulb is removed from this circuit?
42
30 sec
Q.
Which of the two circuits would have the brightest bulbs?
43
30 sec
Q.
Does this statement best describe a parallel or a series circuit?
*When more light bulbs are added they all remain bright. *
