Vocabulary Flashcards
What is the definition of viscosity?
The physical property of a fluid that limits its ability to flow (how thick or thin it is).
What is a fluid? Give two examples.
Any substance that flows (gas or liquid)
What is the definition of mass?
The amount of matter an object has.
What is buoyancy?
The ability of a an object to float in/on a fluid.
What are swim bladders? Who has swim bladders?
Something that can be used to control depth by in taking and releasing air.
Fish usually have swim bladders, but mammals objects like submarines and scuba vests have adopted the idea of a swim bladder.
What is cohesive force?
The forces of attraction between particles.
What does displacement mean?
When a solid is in water, it pushes out water, which is called displacement.
What is the Archimedes principle?
An object can float if it displaces the same amount of water as its weight.
what is negative buoyancy?
The name used to describe an object that sinks.
What is positive buoyancy?
The name used to describe an object that can float.
What is neutral buoyancy?
The name used to describe an object that neither sinks nor floats.
Density - can be described as the “________” of particles that make matter.
Crowdedness
Density - the amount of substance that…… (Complete the sentence)
Takes up a certain space.
Density - depends on particle ____ and particle ____. The more _____ between a particle the less dense. The _____ the particles, the less dense.
Spacing
Size
Space
Bigger
Density - true or false?
Describes how light or heavy.
True
