Question 4 :
What kind of magnet  is used in a magnetic compass ?<br/>
Question 5 :
<span>The presence of magnetic field at a point can be detected by</span><br/>
Question 9 :
Which of the following helps detecting the presence of magnetic field at a point ?
Question 10 :
The N-pole of a compass points to the .............. pole of a permanent magnet<br>
Question 15 :
What is the circular enclosure that the magnetic compass is placed in ?<br/>
Question 20 :
A magnet can be easily turned into a ______ by excessive heating. Fill in the blank.
Question 23 :
Which effect of force is caused by the magnetic force between a magnet and a magnetic substance?
Question 29 :
What happens when the N-pole of a magnet is brought near the N-pole of a suspended magnet?
Question 33 :
Which of the following is not a type of magnet ?
Question 34 : <span class="wysiwyg-font-size-medium"><span class="wysiwyg-font-size-medium"></span></span><p class="wysiwyg-text-align-left"><span class="wysiwyg-font-size-medium"><span class="wysiwyg-font-size-medium"><b>Assertion: </b></span></span><span class="wysiwyg-font-size-medium"><span class="wysiwyg-font-size-medium">Steel is attracted by a magnet</span></span></p><b><span class="wysiwyg-font-size-medium"><span class="wysiwyg-font-size-medium"></span></span></b><span class="wysiwyg-font-size-medium"><span class="wysiwyg-font-size-medium"></span></span><p><span class="wysiwyg-font-size-medium"><span class="wysiwyg-font-size-medium"><b>Reason: </b></span></span><span class="wysiwyg-font-size-medium"><span class="wysiwyg-font-size-medium">Steel is not a magnetic substance</span></span></p>
Question 35 :
Which of the following is/are correct regarding location of a bar magnet?
Question 38 :
___ pole of a normal magnet is directing in ___side of the earth. Fill in the blank.
Question 39 : <table class="table table-bordered"><tbody><tr><td> Material</td><td>Waterproof </td><td>Conducts Electricity </td><td>Elastic </td></tr><tr><td> P</td><td> Yes</td><td>No </td><td> Yes</td></tr><tr><td> Q</td><td>Yes </td><td>Yes </td><td> No</td></tr><tr><td> R</td><td>Yes </td><td> Yes</td><td> Yes</td></tr></tbody></table>Study the given table. Select the option that correctly identifies any two of them.
Question 40 :
When a magnet is suspended freely in air with the help of string, it aligns itself in direction.
Question 42 :
Which of the following will NOT be attracted by a magnet?
Question 45 :
The magnetic force between a magnet and a magnetic substance can cause:
Question 50 :
The material which is not suitable for making a permanent magnet is
Question 51 :
When the N-pole of a magnet is placed near the S-pole of another magnet then it _______ the south pole.<br/>
Question 52 :
<span>An object which attracts pieces of iron, steel, nickel, cobalt is called</span>
Question 53 :
Where is the  attractive property of a magnet is maximum ?
Question 54 :
Which of the following is used to make permanent magnets ?<br/>
Question 58 :
To find the S-pole of a compass is to find the end of the compass needle that
Question 59 :
What does a student need to do to find out whether a material is a magnet?<br/>
Question 62 :
If a piece of metal was thought to be a magnet, which one of the  following observations would offer conclusive evidence
Question 65 :
The answer to which of the following options will distinguish between a magnetic material and a non-magnetic material?
Question 66 :
Identify the methods by which a magnet can lose their properties.
Question 67 :
Two bars of soft iron exactly alike are given. One of them is a magnet. Without using anything more, how would you find which is a magnet -
Question 68 :
The presence of the magnetic field at a point can be detected by: <br/>
Question 69 :
Two bars of soft iron exactly same are given. One of them is a magnet. Without using any thing more, how would you find which is a magnet ?<br/>
Question 70 :
Few common pins are placed on a table with a glass top. A powerful bar magnet is moved under the glass top. Describe the movement of common pins.<br/>
Question 73 :
By which of the following activity, a magnet can loose its property?
Question 74 :
When the north pole of a bar magnet picks up an iron nail which of the following are induced in the nail ?
Question 76 :
The needle of the compass is made of a magnet because it _______ <br/>(i) Attracts metal like iron and steel.<br/>(ii) Gets deflected when a magnet is brought near to it<br/>(iii) Comes to rest in East-West direction<br/>(iv) Comes to rest in a North-South direction<br/>Which of the above statements correctly fill the blank?
Question 79 :
What did the emperor in China have which had an interesting property of magnets?
Question 80 : <p><span>Seema had heard that rainwater is as good as distilled water. So she collected some rainwater in a clean glass tumbler and tested it using a tester. To her surprise, she found that the compass needle showed deflection. What could be the reasons?</span></p>
Question 81 :
When a magnetic substance chemically combines with other elements to form compounds, it is quite possible that the <span>resulting compound is:</span>
Question 82 :
The best way to separate a mixture of sand and iron filings is by the method of:
Question 83 :
When a magnet is placed on a plastic plate with common pins spread on it, then:
Question 84 :
The mud houses are cooler in summer and warmer in winter. It happen due to the reason that.
Question 85 :
Bulb does not glow when the probs are hanged in air. The reason is:
Question 88 :
A potato can be used to find the polarity of a cell
Question 89 :
Why is electrical wiring usually covered with a layer of plastic?
Question 92 :
A substance that allows electricity to pass through it, is called ______<br/><br/>
Question 93 :
A material that lets electricity to pass through it is called a/an-
Question 97 : Identify the conductors from the following: <div><br/><div>Eraser, paper, matchstick, copper wire, polythene.<br/></div></div>
Question 101 :
Fill in the blank.<br>Connecting wires in a electric circuit are made of .......
Question 102 :
Device which helps in maintaining a potential difference across a conductor is
Question 103 :
The materials that do not allow flow of electron through them are known as :
Question 106 :
A material that does not allow electricity to flow through it is called a/an-
Question 109 :
Some materials have electrons that are tightly bound to the nucleus and are not free to travel within the substance. These materials are called .............
Question 113 :
A material that lets electricity to pass through it is called a/an:
Question 114 :
Materials which allow larger currents to flow through them are called :
Question 117 :
Electrical charge can be transferred from a charged object to another through :
Question 126 :
The energy stored in the dry cell is in the form of .......... .
Question 127 :
Which of the follwing does not belong to the group formed by the others?
Question 128 :
A material that does not allow electricity to flow through it is called a/an:
Question 130 :
Electric current is to be passed from one body to another. For this purpose the two bodies must be joined by<br>
Question 133 :
Electrical charge can be transferred from a charged object to another through
Question 134 :
The substance which allows electric current to flow through it is called<br><br>
Question 135 :
Which of the following is the best conductor of electricity ?
Question 136 :
Why is electrical wiring usually made from copper and not silver?
Question 137 :
An example in which light emitting diodes are used is :
Question 140 :
Paheli is running short of connecting wires. To complete an electric circuit. she may use a
Question 143 :
From below which of them are used in electrostatic experiments and demonstrations?
Question 144 :
Which of the following devices can be used to break an electric circuit:
Question 145 :
Which one of the following is bad conductor of electricity ?
Question 149 :
If we touch a naked current carrying wire, we get a shock. This is because our body is a :
Question 150 : Match the following and choose the correct answer.<br><table class="wysiwyg-table"><tbody><tr><td></td><td>Table A</td><td></td><td>Table B</td></tr><tr><td>a.</td><td>conductor</td><td>1.</td><td>plastic</td></tr><tr><td>b.</td><td>charge at rest</td><td>2.</td><td>current electricity</td></tr><tr><td>c.</td><td>moving charge</td><td>3.</td><td>electrostatic</td></tr><tr><td>d.</td><td>insulator</td><td>4.</td><td>copper</td></tr></tbody></table>
Question 154 :
When a switch is in OFF position, <br>i) Circuit starting from the positive terminal of the cell stops at the switch.<br>ii) Circuit is open.<br>iii) No current flows through it.<br>iv) Current flows after some time.<br><span>Choose the combination of correct answer from the following.</span>
Question 156 :
If the switch is connected to a bulb and the battery is kept in the on position what do you observe?
Question 158 :
What type of energy transformation occurs in a dry cell ?
Question 159 :
Some matters do not allow the electricity to pass through it. What is called a matter which does not allow the electricity to pass though it?
Question 162 :
Which of following components are not compulsorily required in an electrical circuit?
Question 168 :
'In a closed electric circuit, the electric current passes from one terminal of <span>the electric cell to the other terminal.' The statement is</span>
Question 171 :
<span>The materials in which the electrons are very tightly bound to the atoms, and are not free to flow -</span>
Question 172 :
<span>Which among the following statements about an electric cell is false?</span>
Question 173 :
When the chemicals in the electric cell <span>are used up, the electric cell stops working. Then, what should we do?</span>
Question 175 :
<span>Why shouldnt the two terminals of an electric cell be joined directly without a switch?</span>
Question 176 : Match the following - <br><table class="wysiwyg-table"><tbody><tr><td>1. Electric Cell</td><td>a. metal cap</td></tr><tr><td>2. Positive Terminal</td><td>b. metal disc</td></tr><tr><td>3. Negative Terminal</td><td>c. produce electricity</td></tr></tbody></table>
Question 177 :
_______________ makes it possible to light our homes, roads, offices, markets and factories <span>even after sunset.</span>
Question 181 :
Which of the following describes an object that allows no light to pass through it ?
Question 182 :
The phenomenon in which light that strikes a surface is thrown back into the same medium is called -
Question 184 :
The phenomenon that leads to the bouncing back of light rays is called-
Question 185 :
Select the correct alternative:<br/>The property due to which a light ray striking a surface and returned back into the same medium is called  
Question 188 :
Which of the following is not a characteristic of pinhole camera ?
Question 190 :
A substance through which light can pass is called a/an :
Question 191 :
The bouncing of a beam of light from a polished surface in some other direction is called -
Question 195 :
What kind of lens is used in making a pinhole camera ?
Question 198 :
The phenomenon by which the incident light falling on a surface is sent back into the same medium is known as ___________.
Question 199 :
Riya and Priya were sitting around a round table. They noticed that they could see their own and each other's image onto the table top. Then table top is made of
Question 207 :
A thin layer of water is transparent but a very thick layer of water is :
Question 208 :
The shape of a shadow depends on which of the following.
Question 210 :
A body which allows most of the light to pass through it is called a :
Question 212 :
In a room lighted by an electric bulb, it is found that the shadow of the ceiling fan hung in the centre is falling on a wall opposite to the door. What can you say about the position of the bulb?
Question 213 :
Which of the following body allows only a part of the light to pass through it?
Question 218 :
Read the given statements and select the correct option. <br/>Statement 1: Rahul placed a colored plastic bottle in front of the beam of a torchlight. Then he placed a transparent sheet of the same size on the other side of the bottle. No shadow will form on the screen. <br/>Statement 2: Translucent objects allow light to pass through them partially.
Question 221 :
Which of the following type of bodies <span>form sharp shadows when placed in the path of light?</span>
Question 226 :
Select the odd one out w.r.t. transparency (air, fog, mist, tissue paper)
Question 229 :
Which of the following is/are not always necessary to observe a shadow?
Question 230 :
The shadow below a tree has bright spots in it because:
Question 231 :
In a room lighted by an electric bulb, it is found that the shadow of the ceiling fan hung in the centre is falling on a wall opposite to the door. What can you say about the position of the bulb ?
Question 232 :
Glass allows light to pass through it because it is -
Question 234 :
A medium which partially allows the light rays to pass through it is called -
Question 235 :
In the pinhole camera, the light rays from the source are moving through the pinhole and incident on the white screen. This is due to :
Question 237 :
A substance through which light can pass completely is called a/an
Question 238 :
If we are able to see anything clearly through an object, then such an object is said to be a ________ object
Question 239 :
Substances that do not allow light to pass through them are called
Question 248 :
When Abhishek looked at a lighted torch through an object he could see a faint glow, but not the torch. The object is
Question 249 :
Select the odd one out w.r.t. transparency (wood, stone, cement, glass)
Question 250 :
What is the angle of incidence if a ray is reflected by a plane mirror back along its original path?
Question 253 :
Change in the direction of light when it falls on an object is called :
Question 256 : <div>Assertion: Shadow forms when light falls on a wooden block. </div><div>Reason: Wood is an example of an opaque object.</div>
Question 257 :
A man of height h walking away from a lamp post finds his shadow to be equal to his height <span>when he is at a distance x from the lamp post. If the height of the lamp post is H, then x is</span>
Question 258 :
What is the type of motion of an object that moves in a straight line?
Question 260 :
A motion which repeats itself after a fixed interval of time is called ______ motion
Question 267 :
Which of the following can be used to measure the length of a steel rod?
Question 270 :
Measuring height of your classmate will be more suitable by using which of the following?
Question 271 : <div><span>Fill in the blanks:</span></div><span></span><div><span><br/></span></div>Each centimetre of a standard scale is divided into _____ parts.
Question 276 :
The process of change in position of an object over time is called
Question 279 :
A person driving a car is in a state of rest with respect to -
Question 280 :
Which of the following is not true about the method of measuring a curve line?<br>
Question 282 : <div>In the following questions, select the one which is different from the other three words.<br/></div>(1) Ladder      (2) Staircase<br/>(3) Bridge       (4) Escalator<br/>
Question 285 :
A boy wants to buy new shoes. To find out his correct shoe size the ________ of his feet should be measured.
Question 287 :
A car moving on a straight road is an example of 
Question 289 :
The distance between two places is 25 km. Write the magnitude of the measurement.
Question 290 :
Which type of motion of an object that moves at a fixed distance from a fixed point?
Question 293 :
Write the name of unit of length smaller than a metre?
Question 295 :
Door to door service is available under which of the means of transport?
Question 296 :
For measuring a curve line which of the following can be used?
Question 297 :
A man inside a moving train tosses a coin and the coin falls behind him. The train is moving :
Question 300 :
A __________ unit does not change with respect to space and time.<br/>
Question 305 :
While measuring the length of a wooden box, the reading at one end is 1.5 cm and the other end is 4.7 cm. What is the length of the wooden box?
Question 306 :
Highest cost of transportation is the disadvantage of ______ mode of transportation.
Question 310 :
Which of the following is correct regarding correct method of measuring length?
Question 312 :
Beating of a drum can be termed as which of the following type of motion ? 
Question 313 :
Something that is used to transport people or things from one place to another is called _____________.
Question 315 :
A moving vehicle on a straight road is an example of -
Question 316 :
The reference standard used for the measurement of a physical quantity is called :
Question 318 :
The length of a rod is measured as $31.52\  cm$. <span>Graduations on the scale are up to :</span>
Question 319 :
The least value measured with metre-scale is (if the metre scale is divided into 1000) ....................... .<br>
Question 320 :
Which of the following shows a motion in a straight line?
Question 324 :
Which of the following is not a characteristic of the standard unit? <br/>
Question 328 :
Pooja had to find the area of a box. So to find the length and breadth she used a metre scale.But the scale she had was broken at the ends and the zero mark could not be seen. When she placed the metre scale, one end had 2 cm reading and the other end had 10.8 cm. <br>What is the length measured?
Question 329 :
Which of the following are used as a mode of transport on water?
Question 330 :
In the beginning of the $19^{th}$, the invention of _________ introduced a new source of power.
Question 331 :
Which of the following are the greatest inventions of all time?
Question 332 :
One end of the scale has reading 3.5 cm and the other end has 15 cm. What is the actual value of the measurement?
Question 334 :
James climb on the roof of a 7 story building and drops a stone from there. What kind of motion does the stone have?
Question 337 :
What is the smallest measurement unit of the length out of these?
Question 338 :
The invention of wheels were used to make transport vehicles such as
Question 339 :
While measuring the length of a knitting needle with a ruler, the reading of the ruler at one end is $3.0 cm$ and at the other end is $33.1 cm.$ What is the length of the needle?
Question 340 :
Which of the following are used as a mode of transport on air?
