Measurement and Motion — Advanced

Grade 8 Science — Measurement and Motion — Advanced: 25 practice questions with instant scoring and explanations.

1. Speed is defined as:
2. Velocity is defined as:
3. The SI unit of speed and velocity is:
4. Acceleration is defined as:
5. If an object is moving at constant velocity, its acceleration is:
6. Deceleration is a form of acceleration where:
7. A distance-time graph with a straight horizontal line represents:
8. A distance-time graph with an increasing slope represents:
9. In a distance-time graph, the slope represents:
10. Uniform motion is motion where:
11. Non-uniform motion is motion where:
12. A velocity-time graph for uniform acceleration is:
13. In a velocity-time graph, the slope represents:
14. In a velocity-time graph, the area under the curve represents:
15. If a car travels 100 m in 5 seconds, its speed is:
16. A train accelerates uniformly from rest to 20 m/s in 10 seconds. Its acceleration is:
17. The SI unit of acceleration is:
18. An object moving in a circle at constant speed has:
19. Displacement differs from distance because:
20. If a person walks 5 m north and then 3 m south, the displacement is:
21. Relative velocity is the velocity of:
22. A stone dropped from a height experiences:
23. Average speed is calculated as:
24. If an object moves from position A to position B and back to A, the total displacement is:
25. The graph of an object moving with negative acceleration will show: