# Fluids And Dynamics Flashcards

1
Q

What is matter

A

Matter is something with mass and volume

2
Q

What is mass

A

Mass is the amount of matter that a substance or object contains

3
Q

What is volume

A

Volume is the amount of space taken up by a substance or object

4
Q

How does matter mass and volume relate to the 3 states of matter

A

A solid has a definite shape and volume

A liquid has a definite volume but it’s shape is determined by its surroundings

A gas has its volume and shape determined by its surroundings

5
Q

What is thermal expansion

A

It’s when heat expands because of the particles move around faster and cover a larger area

6
Q

What is thermal contraction

A

It’s when the temperature decreases and the particles slow down and move closer together

7
Q

What are the 6 types of forces

A
```Gravitational force
Tension force
Friction force
Elastic force
Electrostatic force
Magnetic force```
8
Q

What 2 categories can the forces be split into

A

Action at a distance forces////// contact forces
Gravitational/ action at a distance
Electrostatic/action at a distance
Magnetic/action at a distance

Tension/contact
Friction/contact
Elastic/contact

9
Q

What is and example of each type of force

A

Tension force-tug of war
Friction force-running hands together
Elastic-elastic band

Gravitational-dropping something in the ground
Electrostatic-balloon sticking to wall
Magnetic-magnets

10
Q

Mass VS Weight

A

Mass is the amount of matter in an object

Weight is the amount of force on and object to gravity

11
Q

How do you measure force

A

We measure mass using a competitive SI system using a 1kg cylinder that everything is compared to

12
Q

What is compression

A

An increase in pressure forces the particles closer together decreasing there volume the space between the particles are being compressed

13
Q

What is viscosity

A

The description of fluids resistance flow

High viscosity-he particles move faster

Low viscosity- the particles move slower

14
Q

A

Adhesion Is the attraction or joining of two different objects or fluids to each other

15
Q

What is cohesion

A

Cohesion is the strength with which the particles of an object or fluid attract to each other

16
Q

What is surface tension

A

Surface tension is another property of liquid in which the surface of a liquid acts like a thin skin or membrane

17
Q

What is the hydraulic system (jaws of life)

A

It’s a system that uses hydraulics to pry out people from crashes cars
When one side pushes down the oil the other side goes up form all the oil going in to it pushing up whatever is holding it down

Example syringe science class

18
Q

What is the particle model of matter

A

All matter is made up of particles

In solids the particles are very close and in gasses they are far apart and liquid in the middle

19
Q

What are the three states of matter

A

Solids liquids and gasses