density

Question 1

What is the definition of density?

Answer 1

Density is defined as mass per unit volume.

Question 2

What is the equation for density?

Answer 2

Density = Mass / Volume or 𝜌 = 𝑚 / 𝑉

Question 3

How do you determine the density of a liquid?

Answer 3

1. Measure the mass of an empty container using a balance.
2. Add the liquid to the container and measure the total mass.
3. Subtract the container’s mass to find the liquid’s mass.
4. Measure the volume of the liquid using a measuring cylinder.
5. Use the formula 𝜌 = 𝑚 / 𝑉 to calculate the density.

Question 4

How do you determine the density of a regularly shaped solid?

Answer 4

1. Measure the solid’s mass using a balance.
2. Measure its dimensions (e.g., length, width, height) with a ruler.
3. Calculate its volume using the appropriate formula for its shape.
4. Use the formula 𝜌 = 𝑚 / 𝑉 to calculate the density.

Question 5

How do you determine the density of an irregularly shaped solid that sinks in a liquid?

Answer 5

1. Measure the solid’s mass using a balance.
2. Fill a measuring cylinder with water and record the initial volume.
3. Submerge the solid completely in the water and record the new volume.
4. Calculate the volume of the solid as the difference between the new and initial volumes.
5. Use the formula 𝜌 = 𝑚 / 𝑉 to calculate the density.