SCIENTIFIC TERMS FOR SAIL BOATS
BUOYANCY - THE UPWARD FORCE OF A
FLUID
GRAVITY - THE DOWNWARD FORCE OF AN
OBJECT
MASS - AMOUNT OF MATTER IN AN
OBJECT
MATTER - GENERAL TERM FOR THE SUBSTANCE OF
WHICH PHYSICAL OBJECTS CONSIST
VOLUME - THE
AMOUNT OF SPACE MATTER TAKES UP (L X W X
H)
DENSITY - HOW MUCH MATTER CAN FIT IN A
SPECIFIC PLACE (D=M/V)
How do sailboats stay afloat?
Buoyancy- The upward force of a fluid, which opposes the weight of an immersed object.
Archimedes Principle- This principle explains the concept of buoyancy and states that in order for an object to float, it must displace an amount of water equal to its weight.
Density- Density is how close together the molecules of a substance are or how much mass a substance has in a given space.
Surface Area- the total area of an object's faces and curved surfaces.
BUOYANCY - THE UPWARD FORCE OF A
FLUID
GRAVITY - THE DOWNWARD FORCE OF AN
OBJECT
MASS - AMOUNT OF MATTER IN AN
OBJECT
MATTER - GENERAL TERM FOR THE SUBSTANCE OF
WHICH PHYSICAL OBJECTS CONSIST
VOLUME - THE
AMOUNT OF SPACE MATTER TAKES UP (L X W X
H)
DENSITY - HOW MUCH MATTER CAN FIT IN A
SPECIFIC PLACE (D=M/V)
How do sailboats stay afloat?
Buoyancy- The upward force of a fluid, which opposes the weight of an immersed object.
- The buoyant force comes from the pressure exerted on the object by the fluid.
- The buoyant force is present whether the object sinks or floats
Archimedes Principle- This principle explains the concept of buoyancy and states that in order for an object to float, it must displace an amount of water equal to its weight.
- As a sailboat's weight pushes downward and displaces water beneath it, an upward force equal to that weight holds the boat up.
- Water displacement
Density- Density is how close together the molecules of a substance are or how much mass a substance has in a given space.
- To displace enough water to remain afloat without becoming submerged, a boat must have an average density less than water (Density of water = 1G/ML)
- The denser the object, the deeper it will be in a fluid.
- If the object's density is greater than the density of the fluid, the object will sink.
- If the density is less than the fluid's, the object will float.
- If the fluid and the object have the same density, the object will not sink to the very bottom.
Surface Area- the total area of an object's faces and curved surfaces.
- More surface area gives an object a better chance to displace enough water to offset its own weight