Study Flashcards
(30 cards)
How do you find the density of something?
Mass divided by Volume = Density.
How do you find the mass of something?
Volume x Density
How do you find the volume of something?
Mass x Density
What is density?
Density is a measure of much matter there is on an object (mass) and how much space it takes up (volume)
What is it called when a solid turns into a gas?
Sublimation
What is it called when a gas turns into a solid
Deposition
More dense objects will?
Sink
Less dense object will?
Float
Name 2 liquids or solids that are less dense than water
Oil and a leaf
Can air be compressed?
Yes
Can water be compressed?
No
Can solids be compressed?
No
What can you add to make the volume bigger?
Heat
What can make a solid smaller?
Cold
Where is plasma found?
Near lightning has just struck, plasma tv’s, welding, the sun/stars, Neon lights, exhaust rockets, colourful auroras, layers, heat shields
What is the minimum temperature that plasma needs to exist?
6000 degrees Celsius
Atoms in gases are?
Far apart
Atoms in solids have a ……. And are……..
Fixed shape / Fixed volume and they are close together
Atoms in a liquid have a ……. And are ……..
Fixed volume and role over each other
The denser an object is, the more ….. It’s particle are
Packed
Why do ships float?
Because of buoyancy
When a gas it compressed its …… Is increase
Pressure
What are the 3 types of forces?
Push, pull and twist
Name 2 types of non contact forces
Gravity and magnetism
