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Science [1 Marks Each] M.C.Q.

Electricity and Circuits · MP Board (MPBSE) STD 6 (Madhya Pradesh - English Medium). 217 questions.

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[1 Marks Each] M.C.Q.

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50 questions · auto-graded multiple-choice test.

MCQ 11 Mark
What does a battery contain?
  • ✓
    A minimum of two terminals.
  • B
    A minimum of three terminals.
  • C
    A cell and a switch.
  • D
    A bulb and a switch.
Answer
Correct option: A.
A minimum of two terminals.
A minimum of two terminals.
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MCQ 21 Mark
Which of the following represent a cell?
  • ✓
    $(i).$
  • B
    $(ii).$
  • C
    Neither $(i)$ nor $(ii).$
  • D
    We cannot represent a cell.
Answer
Correct option: A.
$(i).$

 Figure $(i)$ represents a battery.

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MCQ 31 Mark
Which of the following does $NOT$ conduct electricity?
  • A
    Aluminium.
  • B
    Salt solution.
  • ✓
    Ceramic articles.
  • D
    Silver.
Answer
Correct option: C.
Ceramic articles.
Ceramic articles do not conduct electricity.
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MCQ 41 Mark
What are the two places on a battery to which the wires can be attached called?
  • A
    Switches.
  • B
    Filaments.
  • ✓
    Terminals.
  • D
    Insulators.
Answer
Correct option: C.
Terminals.

Wires in a circuit are connected to the two terminals called the positive and the negative terminals.

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MCQ 51 Mark
When a wire is connected through a source of electricity, particles moving through the wire are:
  • A
    Protons.
  • B
    Atoms.
  • ✓
    Electrons.
  • D
    Ions.
Answer
Correct option: C.
Electrons.
When a conductor is connected through a cell electric current (or flow of electrons) starts flowing through it.
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MCQ 61 Mark
It why is tungsten used as a filament in electric bulbs?
  • A
    It is non-luminous.
  • B
    It is a soft metal.
  • ✓
    It has a high melting point.
  • D
    It has a low melting point.
Answer
Correct option: C.
It has a high melting point.
Tungsten has a high melting point. Hence, it is used as a filament in electric bulbs.
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MCQ 71 Mark
DIRECTIONS: Read the passage $(s)$ given below and answer the questions that follow. Passage $-1$ Those materials which do not allows electric current to pass through them are called insulators e.g., air, cork, rubber, thermocole, paper, etc. Insulators are used for covering electrical wires, plug tops, switches and other parts of electrical appliances. Air is an insulator of electricity because air have no:
  • A
    Electrons.
  • ✓
    Free electrons.
  • C
    Protons.
  • D
    None of these.
Answer
Correct option: B.
Free electrons.

 Free electrons are required to conduct electricity.

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MCQ 81 Mark
Tube lights are preferred to bulbs mainly because:
  • A
    Bulbs give more light.
  • B
    Bulbs are cheaper.
  • C
    Bulbs get fused easily/ frequently.
  • ✓
    Bulbs produce shadows.
Answer
Correct option: D.
Bulbs produce shadows.
Bulbs produce large umbral shadows when compared to tube lights. Hence, tube lights are preferred to bulbs.
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MCQ 91 Mark
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion $A$" and the other labelled as "Reason $R$". You are to examine these two statements carefully and decide if the Assertion $A$ and Reason $R$ are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion A: In a closed electric circuit the current passes from one terminal of the electric cell to the other terminal. Reason $(R):$ Generally the metal disc of a cell acts as positive terminal.
  • A
    Both $A$ and $R$ are true and $R$ is the correct explanation of $A.$
  • B
    Both $A$ and $R$ are true but $R$ is not the correct explanation of $A.$
  • ✓
    $A$ is true but $R $ is false.
  • D
    $A$ is false but $R$ is true.
Answer
Correct option: C.
$A$ is true but $R $ is false.
$A$ is true but $R$ is false.
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MCQ 101 Mark
To prevent electric shocks, the metallic electrical wires are covered with:
  • A
    Paper.
  • B
    Cotton.
  • C
    Aluminium.
  • ✓
    Plastic.
Answer
Correct option: D.
Plastic.
Plastic is an insulator of electricity.
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MCQ 111 Mark
Which part of the bulb is an insulator?
  • ✓
    $P.$
  • B
    $Q.$
  • C
    $R.$
  • D
    $S.$
Answer
Correct option: A.
$P.$

$P$ is the glass cover, $Q$ is the filament, $R$ is the supporting wires, while $S$ is the positive terminal of the bulb.

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MCQ 121 Mark
Electric wires are made of:
  • A
    A conducting material.
  • B
    Aluminium.
  • C
    Copper.
  • ✓
    All the above.
Answer
Correct option: D.
All the above.
Both copper and aluminium are conductors of electricity.
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MCQ 131 Mark
Select the object which can be placed between the open ends to light up the bulb in an electric circuit.
  • A
    Needle of sewing machine.
  • B
    A copper coin.
  • C
    An iron nail.
  • ✓
    Any one of the above three.
Answer
Correct option: D.
Any one of the above three.
All these are conductors and if placed between the open ends, the bulb will light up.
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MCQ 141 Mark
Steel is a magnetic material because:
  • A
    It contains iron.
  • B
    It can attract a magnet.
  • C
    It can be converted into a magnet.
  • ✓
    All the above.
Answer
Correct option: D.
All the above.
All the above.
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MCQ 151 Mark
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage An electric cell is a source of electricity. Such cells are used in alarm clocks, wrist watches, transistor radios, cameras, etc. A cell is generally provided with a metal cap that generally acts as:
  • ✓
    Its positive terminal.
  • B
    Its negative terminal.
  • C
    Sometimes positive and sometimes negative terminal.
  • D
    None of the above.
Answer
Correct option: A.
Its positive terminal.
Its positive terminal.
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MCQ 161 Mark
Paheli is running short of connecting wires. To complete an electric circuit, she may use a
  • A
    glass bangle.
  • B
    Thick thread.
  • C
    Rubber pipe.
  • ✓
    Steel spoon.
Answer
Correct option: D.
Steel spoon.
Since, a steel spoon is a conductor of electricity therefore, current will pass through it. So, Paheli can use a steel spoon to complete the circuit.
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MCQ 171 Mark
Current will flow in a circuit containing:
  • A
    A rubber wire, an open switch, a cell.
  • B
    A closed switch, a rubber wire, a cell.
  • ✓
    A copper wire, a closed switch, a cell.
  • D
    All the above.
Answer
Correct option: C.
A copper wire, a closed switch, a cell.
A copper wire, a closed switch, a cell.
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MCQ 181 Mark
Which of the following statements is correct?
  • A
    We should use power sockets in our school to perform science experiments.
  • ✓
    We should use electric cell to perform experiments.
  • C
    Power sockets provide much less electricity than a dry cell.
  • D
    All the above.
Answer
Correct option: B.
We should use electric cell to perform experiments.
We should use electric cell to perform experiments.
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MCQ 191 Mark
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion $A$" and the other labelled as "Reason $R$". You are to examine these two statements carefully and decide if the Assertion $A$ and Reason $R$ are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion $A:$ An electric cell has two terminals. Reason $(R):$ One of the terminals is called the positive terminal and the other is called the negative terminal.
  • A
    Both $A$ and $R$ are true and $R$ is the correct explanation of $A.$
  • ✓
    Both $A$ and $R$ are true but $R$ is not the correct explanation of $A.$
  • C
    $A$ is true but $R$ is false.
  • D
    $A$ is false but $R$ is true.
Answer
Correct option: B.
Both $A$ and $R$ are true but $R$ is not the correct explanation of $A.$

 Both Assertion $A$ and Reason $R$ are correct but Reason $R$ is not the correct explanation of Assertion $A.$

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MCQ 201 Mark
Choose from the options $a, b, c$ and $d$ given in Fig. the figure which shows the correct direction of current.
  • A
  • ✓
  • C
  • D
Answer
Correct option: B.

Current always starts from positive terminal and end at negative terminal of the battery. This is conventional direction of flow of current in a circuit.
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MCQ 211 Mark
Direction: Observe the given figure and answer the following question.
Which of the following statements is correct regarding the maximum brightness of the bulb used in the circuit?
  • ✓
    A similar battery is connected between the probes in same order.
  • B
    A similar battery is connected between the probes in reverse order.
  • C
    A similar bulb is connected between the probes.
  • D
    None of these.
Answer
Correct option: A.
A similar battery is connected between the probes in same order.
Brightness of bulb can be increased by increasing the current through the bulb. This can be achieved by connecting a similar battery in the circuit.
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MCQ 221 Mark
North Pole of a magnetic needle is usually painted ___________.
  • A
    Black.
  • B
    Blue.
  • ✓
    Red.
  • D
    Orange.
Answer
Correct option: C.
Red.
Red.
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MCQ 231 Mark
Figure Based Questions The filament of a bulb will glow in the given electric circuit, if the plug key is:
  • A
    Open.
  • ✓
    Closed.
  • C
    Both $(a)$ and $(b).$
  • D
    None of these.
Answer
Correct option: B.
Closed.

 When the plug key will be closed, electric circuit will be complete and the filament of the bulb will glow.

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MCQ 241 Mark
In the given circuit if $X$ is the positive terminal and $Y$ is the negative terminal then flow of current will be from:
  • A
    $Y$ to $X.$
  • ✓
    $X$ to $Y.$
  • C
    Both $(a)$ and $(b).$
  • D
    Either $(a) $ or $(b).$
Answer
Correct option: B.
$X$ to $Y.$
$X$ to $Y.$
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MCQ 251 Mark
In a circuit with one bulb, another bulb is added in series. What happens to the bulbs when current is passed?
  • A
    They do not glow.
  • ✓
    They glow less brightly.
  • C
    They glow more brightly.
  • D
    They get fused.
Answer
Correct option: B.
They glow less brightly.
A circuit has one bulb, if another bulb is connected in series, the brightness of the two bulbs will be less than the brightness with which the single bulb was glowing earlier.
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MCQ 261 Mark
A battery is connected to an electric lamp. If one more identical lamp is connected in series with the first, what will happen to the current?
  • A
    It will increase.
  • B
    It will remain the same.
  • ✓
    It will decrease.
  • D
    It will become zero.
Answer
Correct option: C.
It will decrease.
It will decrease.
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MCQ 281 Mark
Manu connected three bulbs to a cell as shown in figure. She found that filament of bulb is broken. Which of the following statements is correct?
  • A
    Only bulb $R$ will glow.
  • B
    Only bulb $P$ will glow.
  • C
    Both bulbs $P$ and $R$ will glow.
  • ✓
    None of the bulbs will glow.
Answer
Correct option: D.
None of the bulbs will glow.

Bulb $Q$ is fused because its filament is broken. So none of the bulb will glow.

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MCQ 291 Mark
An electric cell produces electricity from the:
  • A
    Filament present inside it.
  • B
    Power socket present outside it.
  • ✓
    Chemicals stored inside it.
  • D
    Insulator present inside it.
Answer
Correct option: C.
Chemicals stored inside it.
Chemicals stored inside it.
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MCQ 301 Mark
Which of the following statements is incorrect7:
  • A
    A dry cell produces a small amount of electrical energy.
  • B
    A dry cell is used in $TV$ remotes.
  • ✓
    All dry cells are rechargeable.
  • D
    The symbol of a dry cell is.
Answer
Correct option: C.
All dry cells are rechargeable.

Only some dry cells are not rechargeable.

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MCQ 311 Mark
Combination of two or more cells is called:
  • A
    Sockets.
  • B
    Electric circuit.
  • C
    Terminals.
  • ✓
    Battery.
Answer
Correct option: D.
Battery.
Battery.
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MCQ 321 Mark
Which of the following is used to stop the flow of electric current in an electric circuit when it is required?
  • A
    A cell.
  • ✓
    A switch.
  • C
    A bulb.
  • D
    All the above.
Answer
Correct option: B.
A switch.
A switch.
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MCQ 331 Mark
Electric circuit is:
  • A
    Any arrangement in which we have the two terminals of a cell connected to each others by a conducting wire.
  • B
    Any arrangement in which we have the two terminals of a cell connected to each other by a non- conducting wire.
  • ✓
    Any arrangement in which we have the two terminals of a cell connected to the two terminals of a bulb.
  • D
    Any arrangement in which two terminals of a bulb are connected to each other, through a switch, with the help of connecting wires.
Answer
Correct option: C.
Any arrangement in which we have the two terminals of a cell connected to the two terminals of a bulb.
Any arrangement in which we have the two terminals of a cell connected to the two terminals of a bulb.
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MCQ 341 Mark
Which of the following energy conversions take place in a torch?
  • A
    Electrical $\rightarrow$ chemical $\rightarrow$ light.
  • ✓
    Chemical $\rightarrow $ electrical $\rightarrow $ light.
  • C
    Electrical $\rightarrow$ light $\rightarrow$ chemical.
  • D
    Light $\rightarrow$ chemical $\rightarrow$ electrical.
Answer
Correct option: B.
Chemical $\rightarrow $ electrical $\rightarrow $ light.
A torchlight is powered by dry cells which convert chemical energy to electrical energy. This in turn, is converted into light energy by the torch light.
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MCQ 351 Mark
Choose the correct option for the given figure.
  • A
    Magnet $X$ and $Y$ will attract each other.
  • ✓
    Magnet $X$ and $Y$ will repel each other.
  • C
    No force will be experienced by them.
  • D
    All the above.
Answer
Correct option: B.
Magnet $X$ and $Y$ will repel each other.
Magnet $X$ and $Y$ will repel each other.
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MCQ 361 Mark
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion $A$" and the other labelled as "Reason $R$". You are to examine these two statements carefully and decide if the Assertion $A$ and Reason $R$ are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion $(A):$ Bulbs filament is made up of conductors. Reason $(R):$ Tungsten is a good conductor of electricity.
  • A
    Both $(A)$ and $(R)$ are true and $(R)$ is the correct explanation of $(A).$
  • ✓
    Both $(A)$ and $(R)$ are true but $(R)$ is not the correct explanation of $(A).$
  • C
    $A$ is true but $R$ is false.
  • D
    $A$ is false but $R$ is true.
Answer
Correct option: B.
Both $(A)$ and $(R)$ are true but $(R)$ is not the correct explanation of $(A).$
Both $(A)$ and $(R)$ are true but $(R)$ is not the correct explanation of $(A).$
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MCQ 371 Mark
Which of the following magnets has only one pole?
  • A
    Horseshoe.
  • B
    $U-$shaped magnet.
  • C
    Cylindrical magnet.
  • ✓
    None of these.
Answer
Correct option: D.
None of these.
None of these.
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MCQ 381 Mark
To protect the user, part$(s) $__________ of the plug as shown in the figure must be made of electrical insulators.
  • A
    $P$ only.
  • B
    $R$ only.
  • ✓
    $R$ and $S.$
  • D
    $Q$ and $S.$
Answer
Correct option: C.
$R$ and $S.$

The plug cover $R$ and connecting wires cover $S$ should be made of electrical insulators.

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MCQ 391 Mark
"Do not handle electric wires with your bare hands. Wear rubber gloves," said Mr Gupta. Which of the following statements is not true about what Mr. Gupta commented?
  • A
    You will get electrocuted if you handle live wires.
  • B
    The rubber glove is a good insulator to protect us from electric shocks.
  • ✓
    The rubber gloves control the electric current flow.
  • D
    Electricity cannot flow through rubber.
Answer
Correct option: C.
The rubber gloves control the electric current flow.
The rubber gloves are bad conductors of electricity. Hence, they prevent electric current to enter in our body and protect us from electric shocks.
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MCQ 411 Mark
The symbol of an open switch is shown in:
  • A
    Figure $(i).$
  • B
    Figure $(ii).$
  • ✓
    Both figure $(i)$ and figure $(ii).$
  • D
    None of the above is correct.
Answer
Correct option: C.
Both figure $(i)$ and figure $(ii).$
Both figure $(i)$ and figure $(ii).$
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MCQ 421 Mark
What is the function of the component shown above?
  • A
    It is used to connect the bulb to the other components in the circuit.
  • B
    It provides the energy for the bulb to glow.
  • ✓
    It can break a circuit, interrupting the current or diverting it from one conductor to another.
  • D
    It measures the current in a circuit.
Answer
Correct option: C.
It can break a circuit, interrupting the current or diverting it from one conductor to another.
It can break a circuit, interrupting the current or diverting it from one conductor to another.
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MCQ 431 Mark
DIRECTIONS: Read the passage $(s)$ given below and answer the questions that follow. Passage $- 3$ An arrangement in which two terminals of an electric cell are connected to two terminals of the bulb is known as electric circuit. Current flows from positive to negative terminal in closed circuit. Filament of bulb is made up of tungsten. The filament of bulb is made of:
  • A
    A metal.
  • ✓
    Tungsten.
  • C
    Both the above are correct.
  • D
    None of these is correct.
Answer
Correct option: B.
Tungsten.

 Tungsten is a metal.

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MCQ 441 Mark
Why are the electric wires used in homes usually covered with materials like plastic or rubber?
  • A
    To prevent rusting.
  • B
    To make handling easier.
  • ✓
    To prevent shock and short circuits.
  • D
    To make them look beautiful.
Answer
Correct option: C.
To prevent shock and short circuits.
Electric wires used in homes generally have a plastic or rubber covering so as to prevent shocks when we touch them. Insulation also prevents the two live wires coming in contact causing a short circuit.
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MCQ 451 Mark
Which part of the bulb is made up of an insulator material?
  • A
    $A.$
  • B
    $B.$
  • ✓
    $C.$
  • D
    $D.$
Answer
Correct option: C.
$C.$
$C.$
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MCQ 461 Mark
Electric cell is used in:
  • A
    Mobile phones.
  • B
    Transistor.
  • C
    Cameras.
  • ✓
    All of these.
Answer
Correct option: D.
All of these.
Electric cell is a source of electricity. It is used in transistors, cameras, mobile phones, etc.
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MCQ 471 Mark
The given figure is showing:
  • ✓
    An open switch.
  • B
    A closed switch.
  • C
    A bulb.
  • D
    A filament.
Answer
Correct option: A.
An open switch.
An open switch.
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MCQ 481 Mark
Which of the following is a type of magnet?
  • A
    Camel shoe magnet.
  • B
    Donkeysho magnet.
  • ✓
    Horseshoe magnet.
  • D
    Leathereshoe magnet.
Answer
Correct option: C.
Horseshoe magnet.
Horseshoe magnet.
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MCQ 491 Mark
In the circuit shown in Fig. when the switch is moved to $‘ON’$ position:
  • A
    The bulb $A$ will glow first.
  • B
    The bulb $B$ will glow first.
  • C
    The bulb $C$ will glow first.
  • ✓
    All bulbs will glow together.
Answer
Correct option: D.
All bulbs will glow together.

All the bulbs will glow together because current will reach simultaneously to all the bulbs, when the switch is moved to $ON$ position.

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MCQ 501 Mark
What happens to a circuit when the switch is in the $OFF$ position$?$
  • A
    The circuit is complete.
  • ✓
    There is a gap in the circuit.
  • C
    Electricity flows continuously.
  • D
    Electricity flows intermittently.
Answer
Correct option: B.
There is a gap in the circuit.

When a switch in the circuit is in the $OFF$ position, there is a gap (or discontinuity) in the circuit which does not allow flow of electricity in the circuit.

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[1 Marks Each] M.C.Q. - Science STD 6 Questions - Vidyadip