Fluid
Give an example of a high viscosity fluid?
Honey, ketchup, paint etc.
What is buoyancy, and how does it affect objects placed in a fluid?
Buoyancy is the ability to flow. If the buoyant force is greater than the object's weight, the object will rise to the surface and float.
Among gases, liquids, and solids, which one changes volume easily?
Gases
Name a fluid with low viscosity.
water, denatured ethanol etc.
What is the formula of pascals law?
p=F/A
What is fluid?
Any substance that can flow, i.e. is either gas or liquid state.
Why is Buoyancy important in swimming?
Because it helps the swimmer to stay closer to the surface.
List the gases, liquids, and solids in order of particles.
solids-liquids-gases
can solid have viscocity?
no
Name a machine that uses hydraulic system
syringe.
What unit do we use to measure the volume of liquid?
L or ML
what are the factors that affect buoyancy?
The density of the fluid in which the object is submerged, the acceleration due to gravity , and the volume of the displaced fluid .
Choose solid from water vapor, slime, rubber band, yogurt, sand.
Rubber band, sand
which has high viscisity water or honey ?
Honey.
Name a machine that uses pneumatic system
football pump.
How do you call a fluid with a high viscosity?
Viscous fluid.
What is buoyancy affected by?
Buoyancy depends on volume.
Write down the 3 states of water.
vapor, water, ice.
what is viscosity?
the property of matter that describesvthe ability of a liquid to resist flowing.
Will the weight of a thing be the same in the moon and the earth?
no , its different.
Is sand a fluid?
Sand is a solid that has the ability to be poured like a liquid and take the shape of its container. It is still a solid, as each individual grain of sand has a shape of its own and keeps that shape.
Give an example of buoyant force.
A boat sailing on the river, an iceberg floating on water, a person with a life vest floating on water, a ship floating on the ocean, a helium balloon rising in the air, etc., are examples of buoyant force.
What temperature does water frezze?
32 degrees Fahrenheit.
If the magma in volcano has lower viscosity, what are the chances to happen
they will explosive more dangerously.
what does hydraulic system uses?
liquids/fluids.