1 Which instrument is commonly used to measure mass? A Thermometer B Measuring cylinder C Balance D Stopwatch
2 Rania is learning about the structure and function of liquid-in-glass thermometers. She understands that they are commonly used. Which liquid is commonly used in liquid-in-glass thermometers? A Mercury B Alcohol C Water D Both A and B
3 Yara is studying density. She understands that density is a characteristic property of a substance. Which of the following can be used to identify a pure substance? A Mass B Volume C Density D Temperature
5 Which formula represents density? A Density = Volume / Mass B Density = Mass × Volume C Density = Mass / Volume D Density = Weight / Volume
6 Ethan is studying the variation of volume and pressure. He learns that for a fixed mass of gas at constant temperature, pressure is inversely proportional to volume. This is known as: A Charles's law B Boyle's law C Gay-Lussac's law D Avogadro's law
7 Lara is studying permanent magnets. She knows that permanent magnets retain their magnetism for a long time. Which of the following is an example of a permanent magnet? A Soft iron B Steel C Copper D Aluminum
8 Hina is studying the hammering method of inducing magnetism. She knows that hammering a magnetic material in a magnetic field can align its domains. What happens when a magnetic material is hammered? A It loses its magnetism B It becomes permanently magnetized C It becomes a non-magnetic material D Its domains become randomly oriented
9 Samir is studying thermocouple thermometers. He learns that thermocouples are made from two different metals. What is the principle behind a thermocouple? A Expansion of metals B Change in resistance C Seebeck effect D Peltier effect
10 Ferromagnetic materials are: A Strongly attracted by magnets B Weakly attracted C Weakly repelled D Not affected
11 Fatima is learning about the relationship between the motion of particles and temperature. She understands that as temperature increases, the particles move faster. What happens to the kinetic energy of particles when temperature increases? A It decreases B It increases C It remains constant D It becomes zero
12 Which of the following is a use of permanent magnets? A Electric bell B Transformer C Loudspeaker D Electromagnetic crane
13 Bilal is studying diamagnetic materials. He knows that diamagnetic materials are repelled by magnets. Which of the following is a diamagnetic material? A Bismuth B Iron C Nickel D Cobalt
14 Qasim is studying the states of matter. He learns that plasma is the most common state of matter in the universe. Where is plasma commonly found? A On Earth B In stars C In oceans D In the atmosphere
15 Oliver is studying types of magnetic materials. He learns that some materials are repelled by a magnet. What are these materials called? A Ferromagnetic materials B Paramagnetic materials C Diamagnetic materials D Magnetic materials
16 An electromagnet works on the principle of: A Static electricity B Chemical reaction C Magnetic effect of current D Electrolysis
17 Which magnet can be switched ON and OFF? A Bar magnet B Permanent magnet C Electromagnet D Natural magnet
20 In an unmagnetized material, magnetic domains are: A Randomly oriented B Fully aligned C Absent D Very large
21 Ibrahim is studying the solenoid method of inducing magnetism. He knows that a solenoid can be used to make an electromagnet. What happens when the current in the solenoid is turned off? A The magnetic field disappears B The magnetic field remains C The magnetic field increases D The solenoid becomes a permanent magnet
23 Ibrahim is studying the expansion of liquids. He learns that liquids expand when heated. What happens to the density of a liquid when it is heated? A It increases B It decreases C It remains the same D It becomes zero
24 Ming is studying paramagnetic materials. He knows that paramagnetic materials have unpaired electrons. What happens to the alignment of atomic dipoles in a paramagnetic material when an external magnetic field is applied? A They align randomly B They partially align with the field C They perfectly align with the field D They align opposite to the field
25 The strength of an electromagnet can be increased by: A Reducing current B Increasing number of turns C Using plastic core D Reducing turns
26 Quinn is studying biomagnetism. He knows that some animals use the Earth's magnetic field for navigation. Which of the following animals is known to use magnetic field for migration? A Butterfly B Salmon C Ant D Cockroach
27 Lara is studying diamagnetic materials. She knows that diamagnetic materials create an induced magnetic field that opposes the external field. What happens to a diamagnetic material in a non-uniform magnetic field? A It is attracted to the stronger field B It is repelled from the stronger field C It is not affected D It aligns with the field
28 The magnetic field inside a magnet is directed from: A North to South B South to North C East to West D West to East
29 Bilal is learning about measuring densities. He knows that the density of a regular-shaped object can be found by measuring its mass and volume. Which instrument is used to measure the mass of an object? A Measuring cylinder B Balance C Vernier caliper D Screw gauge
30 According to particle model, particles of matter are: A Stationary B Continuously moving C Invisible D Fixed in place