G4 #1 - Properties of Materials

What is density?

• It is the amount of mass an object has.

• It is anything that has mass and volume.

• It is an upward force.

What does dense mean?

• loose

• compact

• not tight

Which letter is most dense?

• A

• B

• C

Which of the 2 is less dense?

• Baseball

• Rubber ball

What is buoyancy?

• It is an downward force exerted by any liquid.

• It is the amount of mass in a given space.

• It is an upward force exerted by any liquid.

If the buoyant force is greater than the weight of the object immersed in water, the object will...

• SINK

• FLOAT

If the buoyant force is less than the weight of the object immersed in water, the object will...

• SINK

• FLOAT

If the buoyant force is equal to the weight of the object immersed in water, the object will...

• SINK

• FLOAT

Which of the 3 items will float on water?

• 5 peso coin

• plastic spoon

• metal spoon

Which of the 3 items will float?

• Styrofoam

• cement

• pebble