Forces
What topic discussed involved force the most?
Pressure
How do we compare fluids viscosity?
By the speed/time they take to move down a slope
Density
the amount of particles/mass in a given volume
How did we build pressure for bottle rockets?
Pumping air into an enclosed container
What experiment involved pressure?
Bottle Rockets
What is the force that makes objects float?
Buoyancy
Why do some fluids not mix?
They have different densities
Viscosity
A fluids resistance to flow
What fluid was at the bottom of the density tower
Honey
What are the 3 ways we discussed to increase pressure in a fluid?
Why does putting a heavy weight in one arm change out balance?
Moves our centre of gravity
What does a massive cargo ship not sink?
It has a large surface area, even weight distribution, more buoyant than water
Buoyancy
The force created by a fluid that makes an object float
What fluid had the least viscosity?
Water
What is the difference between a hydraulic system and pneumatic system?
Hydraulic uses a fluid, pneumatic uses air
If nothing is moving in a system, the forces are what?
balanced/equal
What does heat do to a fluids density?
Lowers it
Balanced Force
When all forces in a system are even
Why did the egg float as we added salt to the water?
We increased the density of the water
What is a hydraulic system? (in regards to force)
Force multiplier
What is the force that slows an object when its pushed along the ground?
Friction
No
Pressure
the amount of force per area
What made the soap boats move?
Soap breaking surface tension
What side of a hydraulic system has a smaller area? input or output?
input