Particle Model / Forces and Matter

Question 1

What is the equation for density?

Answer 1

density = mass / volume

Question 2

What is the letter equation for density?

Answer 2

p = m / v

Question 3

What is the equation for change in themal energy?

Answer 3

change in thermal energy(J) = mass(kg) x specific heat capacity ( J/kg degrees C) x change in temperature(degrees C)

Question 4

What is the equation for thermal energy needed for a change of state?

Answer 4

thermal energy needed for a change of state(J) = mass(kg) x specific latent heat(J/kg)

Question 5

How do you convert kelvin to degrees Celsius?

Answer 5

subtract 273

Question 6

How do you convert degrees Celsius to kelvin?

Answer 6

add 273

Question 7

What is the equation for force?

Answer 7

Force(N) = spring constant(N/m) x extension(m)

Question 8

What is the equation for energy transferred in stretching?

Answer 8

energy transferred in stretching(J) = 1/2 spring constant (N/m) x (extension)squared (m)squared