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IGCSE O Level Physics Practice Test 173

# Centre of Gravity: Physics Quiz Questions and Answers PDF - 173

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## Centre of Gravity: Physics Questions and Answers : Quiz 173

MCQ 861:

Center of gravity of an object depends on it's

1. weight
2. mass
3. density
4. shape
MCQ 862:

Air conditioners are good example of

1. conduction
2. convection
MCQ 863:

If we put some water in a pot and put it over the Bunsen burner, the thermal energy supplied to the water would lead to a gain in

1. external energy
2. internal energy
3. chemical energy
4. physical energy
MCQ 864:

Angle of incidence in optically denser medium for which angle of refraction in less dense medium is 90° is termed as

1. normal angle
2. covalent angle
3. critical angle
4. internal angle
MCQ 865:

Heat capacity of a substance is equal to

1. the amount of heat required to raise the temperature of a 1 kg of a substance by 1 K
2. the amount of heat required to raise the temperature of a substance by 1 K
3. the amount of heat required to change the phase of a substance from solid to liquid without any change in temperature
4. the amount of heat required to change the phase of a substance from liquid to gas without any change in temperature

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