Physics SS 2 Test

Which of the following is the SI unit of temperature?

• A. Kelvin
  

• B. Celsius
  

• C. Fahrenheit
  

• D. Joule

A thermometer works on the principle of which property of a liquid?

• A. Evaporation
  

• B. Expansion and contraction
  

• C. Sublimation
  

• D. Diffusion

Convert 25°C to Fahrenheit.

• A. 45°F
  

• B. 105°F
  

• C. 98°F
  

• D. 77°F

Convert 104°F to degrees Celsius.

• A. 35°C
  

• B. 38°C
  

• C. 40°C
  

• D. 45°C

The clinical thermometer is designed to measure which of the following?

• A. The temperature of boiling water
  

• B. The temperature of the human body
  

• C. The temperature of the atmosphere
  

• D. The temperature of a metal rod

Which of the following correctly defines specific heat capacity?

• A. The quantity of heat required to change the state of a substance
  

• B. The quantity of heat required to raise the temperature of 1 kg of a substance by 1°C
  

• C. The total amount of heat a body can absorb
  

• D. The heat energy required to increase the temperature of a liquid to boiling point

Which method is commonly used to determine the specific heat capacity of a solid experimentally?

• A. Heat loss method
  

• B. Electrical method
  

• C. Displacement method
  

• D. Boyle’s Law experiment

A metal block of mass 2 kg is heated from 30°C to 80°C using 42,000 J of heat energy. What is its specific heat capacity?

(Take c as the specific heat capacity of the metal block.)

• A. 210 J/kg°C
  

• B. 500 J/kg°C
  

• C. 420 J/kg°C

• D. 700 J/kg°C

In the method of mixtures to determine specific heat capacity, which assumption is made?

• A. No heat is lost to the surroundings
  

• B. The container absorbs all the heat
  

• C. The specific heat capacity of the liquid is negligible
  

• D. The initial temperature of the substances is the same

A 500 g block of copper (specific heat capacity = 400 J/kg°C) is heated to 100°C and then placed in 1 kg of water at 20°C. If no heat is lost to the surroundings, what is the final temperature of the system?

(Specific heat capacity of water = 4200 J/kg°C)

• A. 22.5°C
  

• B. 24.6°C
  

• C. 30.0°C
  

• D. 50.0°C