IGCSE A Level Physics Practice Test 79

Energy Change Calculations Quiz PDF: Questions and Answers - 79

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Energy Change Calculations Questions and Answers PDF Download: Quiz 79

MCQ 391: Energy required per unit mass of substance to raise temperature of that substance by 1 K is called

A) enthalpy

B) internal energy

C) specific heat capacity

D) temperature

MCQ 392: Work is defined as

A) F × S

B) F × a

C) m × a

D) F × m

MCQ 393: If we reverse the direction of electric current, then the direction of magnetic field will be

A) reversed

B) remains same

C) becomes tangent

D) becomes normal

MCQ 394: For the minute hand of the clock, the angular velocity is equal to

A) 2 rad s^-1

B) 3 rad s^-1

C) 1 rad s^-1

D) 0.00175 rad s^-1

MCQ 395: 10 mole of carbon contains

A) 6.02 × 10²⁴ atoms

B) 6.03 × 10²³ atoms

C) 6.02 × 10²³ atoms

D) 6.04 × 10²⁴ atoms

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