Module 5 Chapter 2 Archimede's Principle and Bouyant Force

What is the name of the scientist who discovered the principle of buoyancy?

• Isaac Newton

• Albert Einstein

• Archimedes

• Thomas Edison

What does Archimedes' principle say about an object placed in water?

• It disappears

• It turns invisible

• It becomes heavier

• It experiences a buoyant force equal to the weight of the water it displaces

Which force makes a boat float on water?

• Buoyancy

• Gravity

• Magnetic force

• Friction

1. 
   If an object is denser than the liquid it's in, it will:

• Float

• Disappear

• Melt

• Sink

When you fill a balloon with helium and let it go, it:

• Floats up

• Sinks

• Becomes heavier

• Stays still

Why does an ice cube float in a glass of water?

• Ice cubes are made of magic

• Ice cubes are denser than water

• Ice cubes are lighter than water

• Ice cubes are invisible

A toy boat floats in a tub of water. What keeps it afloat?

• Weight of the boat

• Buoyant force from the water

• Wind

• Water

What is the buoyant force?

• A force that pushes objects down

• A force that makes objects invisible

• A force that pulls objects towards the surface

• A force that pushes objects up in a fluid

Why do heavy ships float in the water?

• The water is shallow

• They are really light

• They displace a lot of water, creating a big upward force

• The gravity make the ships float

Which object will experience more buoyant force in water?

• A small rock

• A big rock

• Both the same

• Neither, rocks sink