Describing Matter
Do your feelings matter?
No
What is the formula for density?
m/v
Why does the Earth have a stronger force of gravity than the moon?
More Mass
What are the four states of matter?
Solid Liquid Gas Plasma
A force is any
Push or Pull
What type of change creates a new substance?
Chemical
If a log floats in water what must that mean about the logs density?
It is less than one
What two variables influence gravity?
Mass and Distance
What is an example of a plasma?
Stars, Lightning
What is the value of a balanced force?
0N
Why is light not matter?
It does not have mass
An object has a mass of 150g and a volume of 50ml. What is its density?
3g/ml
What one of my measurements would change on the moon?
My wieght
What happens to the speed and spacing of particles when a gas condenses?
They slow down and move closer together
An unbalanced force will cause...
New motion of an object
What are two pieces of evidence that a chemical change has taken place?
Unexpected color change, heat or light produced, fizzing, new smell
How does the density of pure, solid aluminum compare to pure liquid aluminum
Liquid is less dense
Why is light not affected by gravity?
Light has no Mass/Is not matter
Liquids have a/an __________ shape and a/an ________ volume
indefinite; definite
A force is described with what two things?
Size/Magnitude & Direction
What is solubility & is it a physical or chemical property
Ability to dissolve; physical property
Gold has a density of 19.3g/ml. If I have a 120g gold bar and I then cut the bar into two pieces and take one of the pieces to the moon. What is the density of the piece on the moon?
19.3 g/ml
Gravity and _______ keep the planets in orbit of the sun
Inertia
What is it called when a gas turns directly into a solid?
Deposition
Two equal forces act on an object in opposite directions. What is the motion of the object?
No motion