Physics Yr 11 Aut 1 Flashcards
1
Q
Brownian motion
A
Air molecules in the smoke cell collide with smoke molecules pushing them and causing them to be constantly moving and changing direction.
2
Q
Random motion
A
Molecules in a fluid (such as a gas) move in random motion.
3
Q
Pressure
A
Molecules continuosly colliding with a surface exert force (Pressure).
4
Q
Temperature
A
The average kinetic energy of particles determines the heat of a substance. The more the particles move, the hotter the substance is.
5
Q
Pressure (n/m3) =
A
Force(N)/area(m2)
6
Q
Density (p)=
A
Mass (m)/volume (m3)
7
Q
How to measure displacement of an object
A
Fill eureka jug up to spout, drop object in water, measeur volume of water displaced
