1 Chloe is learning about non-contact forces. She understands that non-contact forces act without physical contact. Which of the following is an example of a non-contact force? A Frictional force B Tension force C Gravitational force D Normal force
2 Rachel is studying orbital motion. She knows that the Moon orbits Earth due to gravity. What is the centripetal force for the Moon's orbit? A Gravitational force from Earth B Centrifugal force C Frictional force D Electromagnetic force
3 Xia is analyzing a speed-time graph. The graph shows a line that is increasing. What does this indicate about the acceleration? A Acceleration is positive B Acceleration is negative C Acceleration is zero D Acceleration is constant
4 Julia is studying the orbit of a satellite around Earth. She knows that the satellite is constantly accelerating towards Earth. What is the name of the force that provides this acceleration? A Centrifugal force B Gravitational force C Frictional force D Electromagnetic force
6 Accuracy refers to: A Repeated measurements B Closeness to true value C Instrument quality D Least count
7 Yara is studying the manometer. She learns that a manometer is a simple device for measuring pressure. Which of the following is a disadvantage of a mercury manometer? A It is inaccurate B Mercury is toxic C It is very sensitive D It measures only high pressures
8 Xia is learning about liquid pressure. She understands that liquid pressure increases with density and depth. In which liquid would the pressure be greater at the same depth? A Water B Oil C Mercury D Alcohol
9 Tina is studying mass and weight. She learns that weight varies with location while mass remains constant. What is the weight of a 60 kg astronaut on the Moon where g = 1.6 m/s²? A 60 N B 600 N C 96 N D 160 N
10 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
11 Uma is studying the conditions of equilibrium. She knows that for a body to be in equilibrium, the sum of all forces and the sum of all torques must be zero. What is the second condition of equilibrium? A Sum of all forces is zero B Sum of all torques is zero C Both A and B D The body must be at rest
12 Tina is learning about the physical balance. She understands that the physical balance is used to measure mass. What is the principle of the physical balance? A Archimedes' principle B Principle of moments C Hooke's law D Pascal's law
13 Lara is studying the advantages of friction. She knows that friction is useful in many situations. Which of the following is an advantage of friction? A It causes wear and tear B It allows us to grip objects C It produces heat D It reduces energy efficiency
14 Omar is learning about types of forces. He knows that tension is a force transmitted through a string or rope. Which of the following is an example of tension? A Pulling a rope in a tug-of-war B A book resting on a table C A ball falling D A magnet attracting a nail
16 Why does a gun recoil when a bullet is fired? A Due to gravity B Due to friction C Due to Newton’s Third Law D Due to inertia
17 If mass of a body is doubled and force remains same, acceleration will: A Double B Become half C Remain same D Become zero
18 Tina is learning about scalar and vector quantities. She understands that scalar quantities have only magnitude. Which of the following is a scalar quantity? A Force B Temperature C Velocity D Acceleration
19 Scientific notation is used to express: A Very small and very large numbers B Only small numbers C Only large numbers D Whole numbers
20 Nadia is studying the hydraulic car brake system. She learns that the brake system uses Pascal's principle. When the brake pedal is pressed, the pressure is transmitted through the brake fluid. What happens to the brake pads? A They move apart B They press against the wheel C They remain stationary D They rotate
21 Which force keeps planets in their orbits? A Frictional force B Magnetic force C Gravitational force D Nuclear force
22 Which instrument is used to measure mass? A Spring balance B Force meter C Electronic balance D Thermometer
23 Distance is defined as: A Shortest path between two points B Total length of path traveled C Change in position with direction D Speed multiplied by time
24 Julia is studying the gravitational field. She learns that the gravitational field strength is the force per unit mass. What is the gravitational field strength on Earth's surface? A 9.8 m/s² B 9.8 N/kg C Both A and B D Neither A nor B
25 Zara is studying the methods of reducing friction. She knows that friction can be reduced in various ways. Which method is used to reduce friction between moving parts of machines? A Increasing the roughness of surfaces B Using lubricating oils C Increasing the weight of the object D Using sandpaper