.
I
II
III
IV
5 m/s
1.380 m/s
5000 m/s
1380 m/s
Clockwise
Anticlockwise
Remain equilibrium
Clockwise
Anticlockwise
No rotation occur
Option 4
Conduction
Convection
Radiation
Bread toasting under a grill
Energy from the Sun warming a road surface
Hot air rising to the top of a cool room
Thermal energy transfer through a copper bar
The air contracts and becomes less dense.
The air contracts and becomes more dense.
The air expands and becomes less dense.
The air expands and becomes more dense.
1.27 m
0.6 m
2.67 m
5.93 m
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