Fluids And Dynamics

Question 1

What is matter

Answer 1

Matter is something with mass and volume

Question 2

What is mass

Answer 2

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

Question 3

What is volume

Answer 3

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

Question 4

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

Answer 4

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

Question 5

What is thermal expansion

Answer 5

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

Question 6

What is thermal contraction

Answer 6

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

Question 7

What are the 6 types of forces

Answer 7

Gravitational force
Tension force
Friction force
Elastic force
Electrostatic force
Magnetic force

Question 8

What 2 categories can the forces be split into

Answer 8

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

Question 9

What is and example of each type of force

Answer 9

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

Question 10

Mass VS Weight

Answer 10

Mass is the amount of matter in an object

Weight is the amount of force on and object to gravity

Question 11

How do you measure force

Answer 11

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

Question 12

What is compression

Answer 12

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

Question 13

What is viscosity

Answer 13

The description of fluids resistance flow

High viscosity-he particles move faster

Low viscosity- the particles move slower

Question 14

What is Adhesion

Answer 14

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

Question 15

What is cohesion

Answer 15

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

Question 16

What is surface tension

Answer 16

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

Question 17

What is the hydraulic system (jaws of life)

Answer 17

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

Question 18

What is the particle model of matter

Answer 18

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

Question 19

What are the three states of matter

Answer 19

Solids liquids and gasses