Energy-energy Changes In A System

Question 1

What is the question for kinetic energy?

Answer 1

1/2 x mass x (velocity)2
Energy(j)
Mass(kg)
Velocity(m/s)

Question 2

What is the question for elastic potential energy?

Answer 2

1/2 x spring constant x (extension)2
Energy(j)
Spring constant(N/m)
Extension(m)

Question 3

What is the equation for gravity potential energy?

Answer 3

Mass x gravitational field strength(9.8) x height
Energy(j)
Gravitational fields strength((N/kg)
Height(m)

Question 4

Define specific heat capacity of a substance?

Answer 4

The amount of energy needed to raise the temperature of 1 kilogram of a substance by 1 degrees Celsius

Question 5

State the units for Specific heat capacity?

Answer 5

J/•C/kg
joules/ degree Celsius/ kilogram