(1)
Pressure is force (N) per unit area (m^2):
P = F/A
P = mg/A
P = (5 kg * 9.8 m/s^2) / (0.0001 m^2)
P = ?
(2)
Heat is simply the flow of energy.
(3)
If there are no more net flow of energy between them.
(4)
Heat capacity units is J/K.
Specific heat capacity units is J/kg-K
1. How much pressure do you experience, when you balance a 5kg ball on the tip of your finger which has an area of 1cm square.
a. 490 kpa
b. 4600 pa
c. 34n
d. No answer
2. Heat can be define as
a. The change in the temprature of a body
b. The flow of temprature from one body to another
c. Energy that flows from place to place as a result of the difference in temprature between them
d. The measure of hotness or coolness of a body
3. Two bodies may be said to be in thermal equilibrium if
a. The bodies are thermally insulated from one another
b. The bodies are not in termal equilibrium with another body
c. If one body losses heat to the other
d. If they are not net flow of heat between the two bodies two bodies in thermal contact
4. Heat capacity has units as
a. J/kg.k
b. J/mol.k
c. J.ohm/sec.k square
d. W/m.k
1 answer