Floatation

Q. The amount of space occupied by water is called its .

1. mass
2. volume
3. density

Q. Which property of material gives shiny appearance to objects?

1. Solubility
2. Hardness
3. Transparency
4. Lustre

Q.

does feather floats on water

Q. Which of the following factors will decide whether an object will float or sink?

1. Weight
2. Density
3. Volume
4. Mass

Q. Identify the object that sinks in water.

1. Sponge
2. Leaf
3. Iron nail
4. Paper

Q. Densities of few objects are given below:
$\begin{array}{cc}\text{Object}& \text{Density(g/L)}\\ \text{i. Copper}& \text{a. 8.96}\\ \text{ii. Mild steel}& \text{b. 7.85}\\ \text{iii. Water}& \text{c. 1.00}\end{array}$
What would be the observation if copper and mild steel are placed in water?

1. Copper floats and mild steel sinks
2. Copper sinks and mild steel floats
3. Copper and mild steel both sink
4. Copper and mild steel both floats

Q. How to know weather an object sinks or floats in water .

Q.

Density of water in SI system is:

1. $1000kgf/m^3$

2. $1000kg/m^3$

3. $1000kg/m^{3}at{4}^{o}C$

4. $100kg/m^{3}at{0}^{o}C$

Q. Various material and their density are given in column A and B. Predict which of the substance will float on water. Density of water is $1{\text{g/cm}}^3$.
$$\begin{array}{cc}\text{Material}& \text{Density}({\text{g/cm}}^3\text{)}\\ \text{Ice}& \text{0.98}\\ \text{Sulphuric acid}& \text{1.84}\\ \text{Kerosene}& \text{0.80}\\ \text{Plastic}& \text{1.05}\end{array}$$

1. Kerosene
2. Ice
3. Plastic
4. Sulphuric acid

Q. Ice floats on water.

1. True
2. False

Q. Which pair of substance among the following would float in a tumbler half filled in water?

1. Cotton, thermocol
2. Feather, plastic ball
3. Rubber band, coin
4. Nail, oil drops

Q. Densities of few objects are given below:
$\begin{array}{cc}\text{Object}& \text{Density(g/L)}\\ \text{i. Copper}& \text{a. 8.96}\\ \text{ii. Mild steel}& \text{b. 7.85}\\ \text{iii. Water}& \text{c. 1.00}\end{array}$
What would be the observation if copper and mild steel are placed in water?

1. Copper floats and mild steel sinks
2. Copper sinks and mild steel floats
3. Copper and mild steel both sink
4. Copper and mild steel both floats