AFNS — AFNS Physics
Heat and Thermodynamics
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#9 Thermal expansion of solids on heating:
A) Usually increases
B) Always decreases
C) No change
D) Stops matter
Answer: A
#10 Specific heat c is:
A) Heat per unit mass per K
B) Total heat
C) Only for gases wrong only
D) Force
Answer: A
#11 Q = mc delta T gives:
A) Heat required
B) Work
C) Power
D) Momentum
Answer: A
#12 Latent heat occurs during:
A) Phase change
B) Rising T in one phase only wrong as latent
C) Chemical bond only
D) Nuclear
Answer: A
#13 Conduction needs:
A) Material medium mostly
B) Vacuum always
C) Only radiation
D) No particles
Answer: A
#14 Convection in:
A) Fluids
B) Solids only
C) Vacuum
D) Metals only crystal
Answer: A
#15 Radiation:
A) No medium required
B) Needs solid
C) Needs liquid
D) Needs gas only
Answer: A
#16 Good conductor example:
A) Copper
B) Wood
C) Air
D) Plastic
Answer: A
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