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This is an MCQ-based quiz on the topic of Complete High School Physics Quiz-2.
This set of MCQs helps you brush up on the important physics topics and prepare you to dive into skill practice and expand your knowledge.
Which of the following is true of enzymes?
Enzyme function is independent of physical and chemical environmental factors such as pH
Enzymes increase the rate of chemical reaction by lowering activation energy barriers.
Enzymes may require a nonprotein cofactor or ion for catalysis to take speed up more
Enzyme function is increased if the three-dimensional structure or conformation of an
Which of the following is known to be a good conductor?
Iron
Wood
Air
Oil
Which method or methods of energy transfer needs matter to transfer energy?
Conduction and convection
Conduction
Convection
None of the above
In a heat engine, what is the relationship between Qh, Qc and W
Q + Qh, + Qc = 0
W = Qh - Qc
W = Qc - Qh
W = Qh + Qc
What is Entropy a measurement of?
Disorder in a system
Average particular energy in a system
Change in energy in a chemical reaction
Energy of a system
A refrigerator is
Heat engine
Air cooler
Motor
Heat engine working in reverse order
Q.
In the figure,it is the PV diagram for ______ engine
Carnot
Petrol
Diesel
Refrigerator
How many siblings does Mrs. Armbruster have?
0
1
2
3
In a cyclic process, heat transfers are + 14.7 kJ, – 25.2 kJ, – 3.56 kJ and + 31.5 kJ. What is the net work in Kj for this cyclic process?
18
1744
17.44
174.4
The flow energy of 0.124 m3/min of a fluid crossing a boundary to a system is 18 kW. Find the pressure at this point in Mpa.
8.71
871
10.71
30
