14. The temperature of a child reads 74°C. What is the equivalent reading in Fahrenheit?
A 73.1 °F
B. 133.2°F
C. 165.2°F
D 190.8°F
12. How much heat is given out when a piece of
iron of mass 80g and specific heat capacity,
460J/kg °C cools from 100°C to 40°C?
A220800 )
B. 147200)
C. 3680J
D 2208 )
13. The process by which liquid molecules with
sufficient energy escape from the surface of
a liquid is known as:
A Evaporation
B. Condensation
C. Conduction
D. Convection
15. The transfer of heat through solids is called
what?
A Radiation
B Convection
Sublimation
D. Conduction
Part II: Essay. Direction: Answer all the question in this part
1. a.) State i. Newton's law of motion ii. The principle of conservation of energy
b.) A net force of 0.5n act on an object of mass 0.03 kg. Calculate the magnitude of its acceleration
2. a.) Briefly explain the three main effects of heat
b.) A force of 25N move an object a distance 50cm in 5 sec. calculate
i. The power used;
ii. The work done
3. a.) An object starts from rest and move with a velocity of 4m/s in one hour. Determine its acce
hy indicating the measuring instrument and the quantity/substance
Measuring Instrumen