Understanding Density and Buoyancy

What makes an object sink in water?

• Its shape

• Its density being higher than water

• Its weight alone

• Its color

How do you measure the density of an object?

• By its size

• By comparing it with another object

• By dividing its mass by its volume

• By measuring its weight in water

What is the density of water in grams per cubic centimeter?

• Less than 1 g/cm³

• 0.5 g/cm³

• 1 g/cm³

• More than 1 g/cm³

If a golf ball is cut into a cube of 1 cm sides, will it float or sink in water?

• Float because it is light

• Sink because it is dense

• Float because it is small

• Sink because it is heavy

Why does a tennis ball float in water?

• Because it is light in color

• Because it is made of rubber

• Because it is hollow and filled with air

• Because it is smooth