GIKI Physics MCQs

Hooke's law magnitude gives k=F/x.
K=20/0.04 = 500 N/m.

Temperature indicates how energetic particle motion is on average.
It determines the direction of spontaneous heat transfer.

Heat is energy in transit between systems.
It flows spontaneously from higher to lower temperature.

Systems in thermal equilibrium have the same temperature.
This idea underlies the zeroth law of thermodynamics.

If two systems are each in thermal equilibrium with a third, they are in equilibrium with each other.
This permits consistent temperature measurement.

Specific heat capacity describes thermal inertia.
Materials with high values require more heat for the same temperature rise.

Stress is force divided by cross-sectional area.
1000/0.005 = 200,000 Pa.

Young's modulus is stress divided by strain.
2×10^8 / 0.001 = 2×10^11 Pa.

Weight is W=mg.
W=8×9.8 = 78.4 N.

Density is mass divided by volume.
ρ=600/0.5 = 1200 kg/m³.

Mass equals density times volume.
M=800×0.25 = 200 kg.

Pressure is force divided by area.
P=100/0.5 = 200 Pa.