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N.S 101 Flashcards

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1
Q

What is static electricity?

A

Static electricity is the buildup of electric charge on the surface of objects.

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2
Q

True or False: Static electricity only occurs in dry conditions.

A

True

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3
Q

What is the unit of electric charge?

A

Coulomb

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4
Q

Fill in the blank: Objects that have the same charge ______ each other.

A

repel

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5
Q

What causes static electricity?

A

Static electricity is caused by the transfer of electrons between materials.

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6
Q

In a series circuit, how is the total resistance calculated?

A

The total resistance is the sum of all individual resistances.

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7
Q

True or False: In a parallel circuit, the voltage across each component is the same.

A

True

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8
Q

What happens to the total current in a parallel circuit when more branches are added?

A

The total current increases.

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9
Q

Multiple choice: Which of the following is NOT a characteristic of a series circuit? A) Current is the same throughout B) If one component fails, the circuit stops C) Voltage is the same across all components D) Each component adds resistance

A

C) Voltage is the same across all components

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10
Q

What is the primary difference between series and parallel circuits?

A

In series circuits, components are connected end-to-end; in parallel circuits, components are connected across the same voltage source.

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11
Q

Fill in the blank: The part of a circuit that provides electrical energy is called a ______.

A

power source

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12
Q

What is visible light?

A

Visible light is the portion of the electromagnetic spectrum that is visible to the human eye.

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13
Q

True or False: The colors of visible light range from red to violet.

A

True

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14
Q

What is the wavelength range of visible light?

A

Approximately 400 nm to 700 nm.

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15
Q

Multiple choice: Which color of light has the longest wavelength? A) Blue B) Green C) Red D) Violet

A

C) Red

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16
Q

What is the role of a resistor in a circuit?

A

A resistor limits the flow of electric current.

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17
Q

Fill in the blank: When light passes through a prism, it ______ into different colors.

A

refracts

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18
Q

True or False: An open circuit allows current to flow.

A

False

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19
Q

What is Ohm’s Law?

A

Ohm’s Law states that voltage equals current times resistance (V = IR).

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20
Q

In a parallel circuit, if one resistor is removed, what happens to the other resistors?

A

They continue to operate normally.

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21
Q

Fill in the blank: The device that converts electrical energy into light energy is called a ______.

A

light bulb

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22
Q

What is the effect of increasing the voltage in a circuit?

A

Increasing the voltage increases the current, assuming resistance remains constant.

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23
Q

True or False: Insulators allow electric current to flow easily.

A

False

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24
Q

What is the purpose of a fuse in an electrical circuit?

A

A fuse protects the circuit by breaking the connection if the current is too high.

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25
Multiple choice: Which of the following materials is a good conductor? A) Rubber B) Wood C) Copper D) Glass
C) Copper
26
What is the principle of conservation of charge?
The total electric charge in an isolated system remains constant.
27
Fill in the blank: The flow of electric charge is called ______.
current
28
True or False: A voltmeter is used to measure current.
False
29
What happens to the brightness of bulbs in a series circuit if more bulbs are added?
The brightness decreases.
30
What is a circuit diagram?
A circuit diagram is a graphical representation of an electrical circuit.
31
Fill in the blank: The part of the circuit that provides a path for current to flow is called a ______.
conductor
32
What does the term 'electromagnetic spectrum' refer to?
The electromagnetic spectrum refers to the range of all types of electromagnetic radiation.
33
True or False: Light can travel through a vacuum.
True
34
What is the speed of light in a vacuum?
Approximately 299,792 kilometers per second (km/s).
35
Multiple choice: Which light phenomenon occurs when light bounces off a surface? A) Refraction B) Reflection C) Diffraction D) Dispersion
B) Reflection
36
What is the primary function of a capacitor in a circuit?
A capacitor stores electrical energy temporarily.
37
What is a circuit breaker used for?
A circuit breaker automatically stops the flow of electricity in case of a fault.
38
Fill in the blank: The measure of how much energy is used in a circuit is called ______.
power
39
True or False: Voltage is the measure of the flow of electric charge.
False
40
What does it mean when a circuit is short-circuited?
A short circuit occurs when there is a low-resistance connection between two points in a circuit, leading to excessive current flow.
41
What is static electricity?
Static electricity is the buildup of electric charge on the surface of objects.
42
True or False: Static electricity only occurs in dry conditions.
True
43
What is the unit of electric charge?
Coulomb
44
Fill in the blank: Objects that have the same charge ______ each other.
repel
45
What causes static electricity?
Static electricity is caused by the transfer of electrons between materials.
46
In a series circuit, how is the total resistance calculated?
The total resistance is the sum of all individual resistances.
47
True or False: In a parallel circuit, the voltage across each component is the same.
True
48
What happens to the total current in a parallel circuit when more branches are added?
The total current increases.
49
Multiple choice: Which of the following is NOT a characteristic of a series circuit? A) Current is the same throughout B) If one component fails, the circuit stops C) Voltage is the same across all components D) Each component adds resistance
C) Voltage is the same across all components
50
What is the primary difference between series and parallel circuits?
In series circuits, components are connected end-to-end; in parallel circuits, components are connected across the same voltage source.
51
Fill in the blank: The part of a circuit that provides electrical energy is called a ______.
power source
52
What is visible light?
Visible light is the portion of the electromagnetic spectrum that is visible to the human eye.
53
True or False: The colors of visible light range from red to violet.
True
54
What is the wavelength range of visible light?
Approximately 400 nm to 700 nm.
55
Multiple choice: Which color of light has the longest wavelength? A) Blue B) Green C) Red D) Violet
C) Red
56
What is the role of a resistor in a circuit?
A resistor limits the flow of electric current.
57
Fill in the blank: When light passes through a prism, it ______ into different colors.
refracts
58
True or False: An open circuit allows current to flow.
False
59
What is Ohm's Law?
Ohm's Law states that voltage equals current times resistance (V = IR).
60
In a parallel circuit, if one resistor is removed, what happens to the other resistors?
They continue to operate normally.
61
Fill in the blank: The device that converts electrical energy into light energy is called a ______.
light bulb
62
What is the effect of increasing the voltage in a circuit?
Increasing the voltage increases the current, assuming resistance remains constant.
63
True or False: Insulators allow electric current to flow easily.
False
64
What is the purpose of a fuse in an electrical circuit?
A fuse protects the circuit by breaking the connection if the current is too high.
65
Multiple choice: Which of the following materials is a good conductor? A) Rubber B) Wood C) Copper D) Glass
C) Copper
66
What is the principle of conservation of charge?
The total electric charge in an isolated system remains constant.
67
Fill in the blank: The flow of electric charge is called ______.
current
68
True or False: A voltmeter is used to measure current.
False
69
What happens to the brightness of bulbs in a series circuit if more bulbs are added?
The brightness decreases.
70
What is a circuit diagram?
A circuit diagram is a graphical representation of an electrical circuit.
71
Fill in the blank: The part of the circuit that provides a path for current to flow is called a ______.
conductor
72
What does the term 'electromagnetic spectrum' refer to?
The electromagnetic spectrum refers to the range of all types of electromagnetic radiation.
73
True or False: Light can travel through a vacuum.
True
74
What is the speed of light in a vacuum?
Approximately 299,792 kilometers per second (km/s).
75
Multiple choice: Which light phenomenon occurs when light bounces off a surface? A) Refraction B) Reflection C) Diffraction D) Dispersion
B) Reflection
76
What is the primary function of a capacitor in a circuit?
A capacitor stores electrical energy temporarily.
77
What is a circuit breaker used for?
A circuit breaker automatically stops the flow of electricity in case of a fault.
78
Fill in the blank: The measure of how much energy is used in a circuit is called ______.
power
79
True or False: Voltage is the measure of the flow of electric charge.
False
80
What does it mean when a circuit is short-circuited?
A short circuit occurs when there is a low-resistance connection between two points in a circuit, leading to excessive current flow.

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