1. Which factor does not affect liquid pressure?
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2. 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?
3. Laura is studying force and change in momentum. She learns that force equals the rate of change of momentum. If the momentum of an object changes from 10 kg m/s to 30 kg m/s in 2 seconds, what is the force?
4. David runs around a circular track of radius 7 meters. He completes one full round and returns to his starting point. What is the displacement of David after one complete round?
5. Precision refers to:
6. Hina is riding a bicycle and her speed changes from 10 km/h to 20 km/h in 5 seconds. She wants to calculate the rate of change of velocity. What is this quantity called?
7. Laura is learning about momentum. She understands that momentum is conserved in a closed system. In a collision, what happens to the total momentum of the system?
8. Newton’s First Law applies to bodies in:
9. Speed is calculated by the formula:
10. Omar is learning about rounding off numbers. He understands that when rounding off, if the next digit is less than 5, the digit remains unchanged. What is 2.345 rounded to two decimal places?
11. Waseem is studying the stability of objects. He knows that a cone lying on its side is in neutral equilibrium. What happens if it is displaced?
12. The vertical or perpendicular component of a force F making an angle θ with the horizontal x-axis is given by:
13. In a distance-time graph, the slope represents:
14. 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?
15. David is studying pressure. He learns that pressure is defined as force per unit area. If a force of 100 N is applied over an area of 2 m², what is the pressure?
16. Omar is studying Newton's laws. He learns that Newton's first law describes what happens when no force acts on an object. What is the state of motion of an object with zero net force?
17. Yusuf is studying the motion of a ball thrown vertically upwards. At the highest point, what is the acceleration of the ball?
18. Hydraulic machines work on:
19. Unit of impulse is:
20. The turning effect of a force is called:
21. Rania is studying Hooke's Law. She learns that Hooke's Law is expressed as F = kx. In this equation, what does 'x' represent?
22. Khalid is studying friction. He knows that friction is a force that opposes motion. Which type of friction is the largest?
23. Uma is analyzing the motion of a car that is moving with a constant acceleration. She knows the initial velocity, final velocity, and time. Which equation of motion can she use to find the displacement?
24. Measurement is comparison with:
25. Waleed is learning about forces. He understands that forces can be contact or non-contact. Which of the following is a non-contact force?
26. 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?
27. Omar is studying vector quantities. He knows that vectors are represented by arrows. Which of the following is a vector quantity?
28. SI unit of acceleration is:
29. Which object has greater inertia?
30. If speed-time graph is a straight line sloping upwards, motion has: