QUIZ

1. If the atoms of an object are moving or vibrating fast, the temperature of the object would be 

A. Cold

B. Hot.

C. Can't be determined

2. The fact that desert sand is very hot in the day and very cold at night is evidence that sand has.

A. a low specific heat

B. a high specific heat.

C. no specific heat.

3.Heat energy travels from an object with a high?

A. Internal energy to an object with a lower internal energy.

B. Temperature to an object with a lower temperature.

C.Both of these, for they say essentially say the same thing

4.A surveyor uses a steel measuring tape that is exactly 50m at a temperature of 20 °C. What is the length of steel measuring tape in a hot summer day when the temperature is 35 °C? when (αsteel = 1.2×10-5/°C)      

A. L=50.015 m

B. L=50.012 m
C. L=50.009 m

5. Two matters have specific heat capacities c and 2c. If we give Q and 4Q heat to these matters, changes in the temperatures of them become equal. If the matter A has mass m, find the mass of matter B in terms of m.

A. mB= 2m

B. mB= m/2

C. mB= 4m

6. A gas in a closed container is heated with 450J of energy, causing the lid of the container to rise. If the change in energy of the system is 300J , how much work was done by the system?

A. W =   150J

B. W =  -150J

C. W =   750J

7. Which of the following represents the first law of thermodynamics?

A. If a refrigerator is unplugged, eventually everything inside of it will return to room temperature

B. After falling down the hill, a ball's kinetic energy plus heat energy equals the initial potential energy.

C. Two systems in equilibrium with a third system are in equilibrium with each other

8. When 100 kJ of work is done on a closed system during a process, the total energy of the system increases by 55.0 kJ. Calculate how much heat is either added or removed from the system?

A. Q= -45KJ

B. Q= 155KJ

C. Q= -45 J

9. A gas start with 200J of internal energy, While you add 180J of Heat to the gas, The gas does 70J of work. What would be the final internal energy of the gas?

A. Uf = 450 J

B. Uf = -90 J

C. Uf = 310 J

10.The absolute thermodynamic temperature scale is also known as

A. Celsius scale

B. Kelvin scale.

C. Fahrenheit scale.

TEMPERATURE

HEAT

1ST LAW OF THERMODYNAMICS

RATE MY BLOG

References:
http://homepage.smc.edu/kocharian_armen/Physics14/Practice%20Quiz%2012%20(Ch%2015).pdf
https://www.sanfoundry.com/thermodynamics-questions-answers-absolute-thermodynamic-temperature-scale/
https://www.youtube.com/watch?v=w82Lk_4vlok
https://www.physicstutorials.org/home/exams/heat-temperature-and-thermal-expansion-exams-and-solutions/heat-temperature-and-thermal-expansion-exam1-and-solutions
https://www.varsitytutors.com/high_school_physics-help/understanding-the-first-law-of-thermodynamics

ANSWER KEY