P6 Flashcards
1
Q
What is density?
A
- Mass per unit of volume
- density(kg/m(cubed)) = mass(kg)//volume(m(cubed))
2
Q
What is specifict heat latency?
A
change in internal energy(J)=mass(kg)x Specific Heat Latency x change in temperature
3
Q
What is atmospheric pressure?
A
- pressure(Pa)=Density(kg/m(cubed))xGravitationalFieldStrength x depth(m)
- Depends on Density and depth
4
Q
Whar is the spring constant?
A
- force exerted by spring(N) = extension(m) x spring constant(N/m)
- Depends on the material being stretched-a stiffer spring has a greater spring constant
5
Q
What is hookes law?
A
The extension of a spring is directly proportional to the force applied.
6
Q
How do you find energy stored in a stretched spring?
A
Energy in a stretched spring(J) = 0.5 x spring constant(N/m) X extension(squared)(m(Squared))
7
Q
What is the solar system?
A
- The solar system is the stuff that orbits the our sun
- Planets-Large objects that orbit a star
8
Q
What is gravity?
A
It is what provides the force that creats orbit
9
Q
What is specific heat capacity?
A
- The amount of energy needed to raise the temperature of 1kg of a substance by 1 degree
- Uses two types of stores: potential energy store and kinetic energy store
- since we are talking about heat we only need to talk about the kinetic energy store because it is the movement energy of the particles
10
Q
What is pressure?
A
- the force per unit area
- pressure=force/area
11
Q
What is the link between pressure and voulume?
A
- They are inversely related
- pressure x volume =constant volume
