1 Hina is studying the measurement of atmospheric pressure. She learns that a mercury barometer was invented by Torricelli. What liquid is used in a Torricelli barometer? A Water B Mercury C Alcohol D Oil
3 Emma is studying oscillations and waves. She learns that oscillations are repetitive motions and waves are disturbances that travel through a medium. Which of the following is an example of a wave? A A pendulum swinging B A spring vibrating C Sound waves D A rotating wheel
4 Vera is studying electromagnetism. She learns that electromagnetism is fundamental to many technologies. Which of the following is an application of electromagnetism? A Wireless communication B Optical fibers C Sonar D Thermal insulation
5 Ming is studying the disadvantages of friction. She knows that friction causes energy loss. What is a method to reduce friction in machines? A Using ball bearings B Increasing the surface roughness C Using heavy lubricants D Increasing the temperature
7 Nadia is studying Newton's laws and conservation of momentum. She learns that in a closed system, the total momentum before a collision is equal to the total momentum after the collision. This is known as: A Law of inertia B Law of conservation of momentum C Law of acceleration D Law of action-reaction
8 Waseem is studying the center of mass. He knows that the center of mass is the point where the entire mass of a body can be considered to be concentrated. For a uniform rectangular plate, where is the center of mass located? A At the center of the plate B At one corner C At the midpoint of one side D Outside the plate
9 Magnetic field lines always emerge from: A South pole B Center of magnet C North pole D All sides equally
10 Chloe is studying the conversion of energy in a hydroelectric dam. The potential energy of water is converted to kinetic energy, which then turns turbines. What is the final form of energy? A Chemical energy B Electrical energy C Nuclear energy D Thermal energy
11 Quinn is studying the center of mass of a body. He knows that the center of mass is the point where the entire weight of the body can be considered to act. For a uniform rod, where is the center of mass located? A At one end B At the midpoint C At the quarter point D Outside the rod
12 Zayn is studying Newton's third law. He learns that action and reaction forces act on different objects. Which of the following correctly describes action-reaction pair? A Action force is greater than reaction force B Action and reaction forces act on the same object C Action and reaction forces are equal and opposite D Action force acts only on Earth
14 Ibrahim is studying the motion of a car on a curved road. He knows that the car needs a force to keep it moving in a circle. What is this force called? A Centrifugal force B Centripetal force C Frictional force D Gravitational force
15 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
16 Ahmed is trying to open a heavy door by pushing near the hinges. He finds it very difficult. He then pushes at the far end of the door and finds it easier. What concept explains why pushing at the far end is more effective? A Center of mass B Moment of a force C Friction D Equilibrium
17 Mass of a body remains: A Same everywhere B Different on Moon C Zero in space D Dependent on gravity
18 Usman is learning about atmospheric pressure and weather. He understands that falling barometer readings indicate an approaching storm. What type of weather is associated with a falling barometer? A Clear weather B Stormy weather C Calm weather D Hot weather
20 Emma is studying the stability of a cone. She places it on its base and it stands firmly. She then places it on its tip and it falls over. What type of equilibrium does the cone have when standing on its tip? A Stable equilibrium B Unstable equilibrium C Neutral equilibrium D Dynamic equilibrium
22 Rania is studying Hooke's Law. She learns that Hooke's Law is expressed as F = kx. In this equation, what does 'x' represent? A Force applied B Spring constant C Extension or compression D Mass
23 Resultant of two vectors at right angles is found using: A Addition law B Subtraction law C Pythagoras theorem D Newton’s law
24 Julia is learning about SI base units. She knows that the SI system has seven base units. Which of the following is an SI base unit? A Newton B Joule C Kilogram D Volt
25 Ibrahim is studying fossil fuels. He knows that fossil fuels are non-renewable energy resources. Which of the following is a fossil fuel? A Biomass B Coal C Solar energy D Wind energy