Physics Practice: Physical Quantities and Measurement (Mock Test 5 - Ultimate Comprehensive)
1. The density of a substance is defined as the ratio of its ________ to its ________.
2. In the CGS system, the unit of density is:
3. Relative density is also known as:
4. The volume of a solid can be determined by the displacement of a liquid only if the solid is ________ in that liquid.
5. For a given mass of water, its volume is minimum at ________.
6. A body floats in a liquid if its density is ________ the density of the liquid.
7. The mass of $10 \text{ cm}^3$ of a metal is $70 \text{ g}$. Its density is:
8. Which of the following stays at the bottom when water and oil are mixed?
9. A density bottle of capacity $50 \text{ mL}$ is filled with a liquid of mass $60 \text{ g}$. The density of the liquid is:
10. The speed of a body is the ________ of the distance-time graph.
11. To convert density from $g/cm^3$ to $kg/m^3$, we multiply by:
12. An iron needle sinks in water, but a huge iron ship floats because the ship ________.
13. The space occupied by $1 \text{ kg}$ of water at $4^\circ\text{C}$ is exactly:
14. If the mass of a body is $m$ and its volume is $V$, its relative density is:
15. A body floats in a liquid $A$ but sinks in liquid $B$. This implies:
16. The speed of a bird is $15 \text{ m/s}$. The distance it covers in $1 \text{ minute}$ is:
17. $1 \text{ hectare}$ is a unit of ________ equal to $10,000 \text{ m}^2$.
18. If $RD$ of gold is $19.3$, the mass of $10 \text{ cm}^3$ of gold is:
19. A displacement can is used when the irregular solid is ________ for a measuring cylinder.
20. The SI unit of speed is $m/s$, but for long-distance travel, we use ________.