3. Particle Model Of Matter Flashcards
What is SA?
Surface area
Equation for volume of a rectangle?
V=hxbxl
Equation for volume of a triangle?
V=1/2xbxlxh
Equation for volume of a circle?
V=3.14r2xl
Equation for volume of a sphere?
V=4/3 3.14r3
Equation for density?
Density = mass/volume
How to measure mass of an irregular object?
Displacement method
What should water have a gradient of?
1
Why do gas particles move more quickly?
They have more energy when heated
What happens when particles have a higher kinetic energy?
Greater average kinetic energy so faster average speed
Equation for pressure?
Pressure = force / area
What is pressure measured in?
N/cm2 or N/m2
What is the symbol for density?
Rho
What happens when molecules collide with the wall of a container?
They exert a force on the wall
What is the unit area?
The total force exerted by all the molecules