Science Chapter 3
Terms
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- true
- All of the forces exerted by the individual molecules in a fluid add together to make up the pressure exerted by the fluid
- pascal
- Newton per meter squared
- Archimedes' principle
- This principle states that the buoyant force on an object is equal to the weight of the fluid displaced by the object.
- buoyant force
- This force acts in the upward direction, against the force of gravity, so it makes an object feel lighter.
- true
- Air pressure decreases as elevation increases
- hydraulic systems
- This system multiplies a force by applying force to a small surface area. The increase in pressure is then transmitted to another part of a confined fluid which then pushes on a larger surface area.
- true
- An object that is more dense than the fluid in which it is immersed sinks. An object that is less dense than the fluid which it is immersed floats to the surface.
- fluid
- Is a substance that can easily flow
- bernoulli's principle
- This principle states that the pressure exerted by a moving stream of fluid is less than the pressure of the surrounding fluids
- false
- Water pressure decreases as depth decreases