Activity 1.10:
Aim: To investigate the relationship between the mass and density of various solids that have the same volume
Materials and apparatus: Copper cube, iron cube, cork cube and wooden cube that have the volume of 1 cm3 each, water, basin, weighing balance.
Instruction
1. You are given four cubes that have the same volume as shown below.
2. Weigh the mass of each cube and calculate the density of each cube using the formula:
3. Record the value of mass and density in the table below.
4. Put the cubes into a basin of water. Observe whether they float or sink.
Questions
1. What is the relationship between mass and density if the volume of all the four solids is the same?
2. Arrange the above solids according to their density in an ascending order.
3. Based on the observation from step 4, state the operational definition of density.
Answer:
1. Density increases when the mass increases.
2. Cork → Wood → Iron → Copper
3. The operational definition of density is referring to the condition shown by objects which float or sink in water.
Aim: To investigate the relationship between the mass and density of various solids that have the same volume
Materials and apparatus: Copper cube, iron cube, cork cube and wooden cube that have the volume of 1 cm3 each, water, basin, weighing balance.
Instruction
1. You are given four cubes that have the same volume as shown below.
2. Weigh the mass of each cube and calculate the density of each cube using the formula:
3. Record the value of mass and density in the table below.
4. Put the cubes into a basin of water. Observe whether they float or sink.
Questions
1. What is the relationship between mass and density if the volume of all the four solids is the same?
2. Arrange the above solids according to their density in an ascending order.
3. Based on the observation from step 4, state the operational definition of density.
Answer:
1. Density increases when the mass increases.
2. Cork → Wood → Iron → Copper
3. The operational definition of density is referring to the condition shown by objects which float or sink in water.