Density

If an object has a mass of 10g and a volume of 2cm³, what is its density?

• 3 g/cm³

• 4 g/cm³

• 5 g/cm³

• 6 g/cm³

What is the density of a rock that has a mass of 14g and a volume of 2cm³?

• 5 g/cm³

• 6 g/cm³

• 7 g/cm³

• 8 g/cm³

If an object has a density of 0.6 g/mL, will it sink or float in water?

• It will sink because its density is greater than that of water.

• It will float because its density is less than that of water.

• It will neither sink nor float; it will remain suspended in water.

• It will float only if the water temperature is below 0°C.

How does temperature affect the density of a substance?

• Generally, as temperature increases, the density of a substance decreases because the substance expands.

• As temperature increases, the density of a substance increases due to contraction.

• Temperature has no effect on the density of a substance.

• Density remains constant regardless of temperature changes.

Why does a ping pong ball float in water?

• A ping pong ball floats in water because it is made of plastic.

• A ping pong ball floats in water because it is hollow inside.

• A ping pong ball floats in water because its density is less than that of water.

• A ping pong ball floats in water due to surface tension.

What are the units used to measure density?

• grams per cubic centimeter (g/cm³)

• liters per square meter (L/m²)

• kilograms per liter (kg/L)

• meters per cubic meter (m/m³)

What is the formula for calculating density?

• Density = Mass + Volume

• Density = Mass - Volume

• Density = Mass / Volume

• Density = Mass * Volume

What is density?

• Density is a measure of how much mass is contained in a given volume.

• Density is the weight of an object divided by its height.

• Density refers to the amount of space an object occupies.

• Density is the total mass of an object regardless of its volume.

What is the relationship between density and buoyancy?

• Buoyancy is the ability of an object to float in a fluid, which is determined by the object's density relative to the fluid's density.

• Density is the measure of how much mass is contained in a given volume, which has no effect on buoyancy.

• Buoyancy increases as the density of an object increases, regardless of the fluid's density.

• An object will always sink if its density is greater than the fluid's density, regardless of its shape.

What is the significance of density in real-world applications?

• Density determines the color of an object.

• Density helps determine whether objects will float or sink, which is important in fields like engineering, shipping, and material science.

• Density is used to measure temperature changes in materials.

• Density affects the taste of food products.