Properties of Matter — Deeper

Grade 7 Science — Properties of Matter — Deeper: 25 practice questions with instant scoring and explanations.

1. Density is defined as:
2. An object with density less than water will:
3. If object A has greater density than object B, then:
4. Buoyancy is the upward force exerted by:
5. Archimedes' principle states that:
6. For an object to float, the buoyant force must be:
7. A ship made of iron floats because:
8. The density of water is:
9. Relative density compares the density of a substance to:
10. An object sinks in water if:
11. Which substance has the lowest density under normal conditions?
12. When an object is completely submerged, the buoyant force depends on:
13. The principle of buoyancy explains why:
14. If the density of oil is 0.8 g/cm³, it will:
15. The relative density of a substance is a:
16. A hydrometer is used to measure:
17. Ice floats on water because:
18. When an object floats, the weight of fluid displaced equals:
19. Sinking or floating depends on the relationship between:
20. A steel ball sinks in water but a steel ship floats because:
21. Density is inversely related to:
22. For two objects of the same mass, the one with larger volume has:
23. A submarine can sink or float by:
24. The density of mercury is approximately:
25. Density remains constant for a substance regardless of: