Buoyancy Basics

If an object is neutrally buoyant it will ________.

• sink

• float

• neither float or sink

• objects cannot be neutrally buoyant...

This is what happens to an object when the gravitational force is stronger than the buoyant force.

• sinks

• floats

• neutrally buyant

• I don't know...

This is what happens to an object when the buoyant force is stronger than the gravitational force.

• sinks

• floats

• neutrally buyant

• I don't know...

This is what happens to an object when the buoyant force is EQUAL to the the gravitational force.

• sinks

• floats

• neutrally buyant

• I don't know...

If we place an empty sealed plastic bottle in water, we know it will float. What could we do to make it sink?

• You can't make a plastic bottle sink

• Increase mass (fill it with coins)

• Fill the bottle with helium

• Decrease mass (use a bottle made out of lighter plastic)

Tags

NGSS.MS-PS2-2

If an object, such as a ball of clay sinks, what would we need to do to its volume to make it float?

• Clay can't float

• Increase the volume

• Decrease the volume

• Keep the volume the same

Which properties affect buoyancy?

(select all that apply)

• Mass

• Volume

• Density

• Luster

The density of fresh water is 1 g/cm³.

Imagine the clay boat you just designed has a density of 1.5 g/cm³. What would happen to your boat if you placed it in fresh water?

• sink

• float

• neutrally buoyant

• no way of knowing what would happen

The density of fresh water is 1 g/cm³.

Imagine the clay boat you just designed has a density of 0.8 g/cm³. What would happen to your boat if you placed it in fresh water?

• sink

• float

• neutrally buoyant

• no way of knowing what would happen

The density of fresh water is 1 g/cm³.

Imagine the clay boat you just designed has a density of exactly 1 g/cm³. What would happen to your boat if you placed it in fresh water?

• sink

• float

• neutrally buoyant

• no way of knowing what would happen