Physics
Grade-9
Easy
Question
Four systems are at the following temperatures in degree Celsius. the average KE of which of the systems is the lowest?
- 45
- 76
- 25
- 98
Hint:
Less temperature = less KE
The correct answer is: 25
The more the temperature, the more the particles move about in the container so the more kinetic energy the will posses. Therefore the one that has the less temperature the less KE it will have
Related Questions to study
Physics
Case 1: Water is heated to a temperature of 40 degree Celsius.
Case 2: It is heated further to 70 degrees Celsius.
The speed of the molecules in case 1 is __ the speed of the molecules in case 2.
Case 1: Water is heated to a temperature of 40 degree Celsius.
Case 2: It is heated further to 70 degrees Celsius.
The speed of the molecules in case 1 is __ the speed of the molecules in case 2.
PhysicsGrade-9
Physics
Case 1: Water is heated to a temperature of 40 degree Celsius.
Case 2: It is heated further to 70 degrees Celsius.
The KE of the molecules in case 1 is __ the KE of the molecules in case 2.
Case 1: Water is heated to a temperature of 40 degree Celsius.
Case 2: It is heated further to 70 degrees Celsius.
The KE of the molecules in case 1 is __ the KE of the molecules in case 2.
PhysicsGrade-9
Physics
Which of the following is zero at the absolute zero temperature?
Which of the following is zero at the absolute zero temperature?
PhysicsGrade-9
Physics
If olive oil is heated, the speed of the particles in it ____.
If olive oil is heated, the speed of the particles in it ____.
PhysicsGrade-9
Physics
Which of the following is not a unit of temperature?
Which of the following is not a unit of temperature?
PhysicsGrade-9
Physics
Two bodies A and B are in contact with each other in an insulated box. A is at a higher temperature than B. The direction of flow of heat is ____.
Two bodies A and B are in contact with each other in an insulated box. A is at a higher temperature than B. The direction of flow of heat is ____.
PhysicsGrade-9
Physics
The particles of a _____ move in the most random way and at greatest speeds.
The particles of a _____ move in the most random way and at greatest speeds.
PhysicsGrade-9
Physics
As the temperature of a substance of a fixed amount in a fixed volume increases _____.
As the temperature of a substance of a fixed amount in a fixed volume increases _____.
PhysicsGrade-9
Physics
When two bodies A and B are placed in contact with each other, the total heat is _____.
When two bodies A and B are placed in contact with each other, the total heat is _____.
PhysicsGrade-9
Physics
The temperature _____ on the kinetic energy of the constituent particles.
The temperature _____ on the kinetic energy of the constituent particles.
PhysicsGrade-9
Physics
0 K = ____ oC
0 K = ____ oC
PhysicsGrade-9
Physics
Which of the following represents the absolute zero temperature?
Which of the following represents the absolute zero temperature?
PhysicsGrade-9
Physics
The S I unit of temperature is _____.
The S I unit of temperature is _____.
PhysicsGrade-9
Physics
Temperature can be measured by ____.
Temperature can be measured by ____.
PhysicsGrade-9
Chemistry
What is the temperature when 2.10 moles of nitrogen gas and it has a pressure of 1.25 atm in a 25L of tank?
What is the temperature when 2.10 moles of nitrogen gas and it has a pressure of 1.25 atm in a 25L of tank?
ChemistryGrade-9
