image

    Have a query? Ask a Tutor!!

    Access to best educators and exclusive paper discussions

    Can’t find what you’re looking for?

    Our tutors are from top schools around the world, and they are waiting for you 24/7, anytime, anywhere.

    • Homework- One to One Solutions
    • Understand concepts to solve better
    • Get your doubts solved instantly
    Physics
    Grade-9
    Easy

    Question

    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.

    1. Equal to
    2. Greater than
    3. Smaller than
    4. Any of the above

    Hint:

    Temperature increases the KE of the system

    The correct answer is: Smaller than

      More temperature means more KE, therefore as the temperature is more in case 2, the KE is more there

      Related Questions to study

      Grade-9
      Physics

      Which of the following is zero at the absolute zero temperature?

      1. Speed of the particles
      2. Kinetic energy of the particles
      3. Pressure
      4. All of the above

      Which of the following is zero at the absolute zero temperature?

      PhysicsGrade-9
      1. Speed of the particles
      2. Kinetic energy of the particles
      3. Pressure
      4. All of the above
      Grade-9
      Physics

      If olive oil is heated, the speed of the particles in it ____.

      1. Increases
      2. Decreases
      3. Stays the same
      4. Becomes zero

      If olive oil is heated, the speed of the particles in it ____.

      PhysicsGrade-9
      1. Increases
      2. Decreases
      3. Stays the same
      4. Becomes zero
      Grade-9
      Physics

      Which of the following is not a unit of temperature?

      1. Degree Celsius
      2. Degree Fahrenheit
      3. Kelvin
      4. Joules

      Which of the following is not a unit of temperature?

      PhysicsGrade-9
      1. Degree Celsius
      2. Degree Fahrenheit
      3. Kelvin
      4. Joules
      parallel
      Grade-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 ____.

      1. a to b
      2. b to a
      3. a and b to the surroundings
      4. None of these

      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
      1. a to b
      2. b to a
      3. a and b to the surroundings
      4. None of these
      Grade-9
      Physics

      The particles of a _____ move in the most random way and at greatest speeds.

      1. Solid
      2. Liquid
      3. Gas
      4. Gelly 

      The particles of a _____ move in the most random way and at greatest speeds.

      PhysicsGrade-9
      1. Solid
      2. Liquid
      3. Gas
      4. Gelly 
      Grade-9
      Physics

      As the temperature of a substance of a fixed amount in a fixed volume increases _____.

      1. The speed of its constituent particles increases
      2. The KE of the particles increases
      3. The heat content of the substance increases
      4. All of the above

      As the temperature of a substance of a fixed amount in a fixed volume increases _____.

      PhysicsGrade-9
      1. The speed of its constituent particles increases
      2. The KE of the particles increases
      3. The heat content of the substance increases
      4. All of the above
      parallel
      Grade-9
      Physics

      When two bodies A and B are placed in contact with each other, the total heat is _____.

      1. Heat(A) + Heat(B)
      2. Heat(A) - Heat(B)
      3. fraction numerator left parenthesis H e a t left parenthesis A right parenthesis space plus space H e a t left parenthesis B right parenthesis right parenthesis over denominator 2 end fraction
      4. fraction numerator left parenthesis H e a t left parenthesis A right parenthesis space minus space H e a t left parenthesis B right parenthesis right parenthesis over denominator 2 end fraction

      When two bodies A and B are placed in contact with each other, the total heat is _____.

      PhysicsGrade-9
      1. Heat(A) + Heat(B)
      2. Heat(A) - Heat(B)
      3. fraction numerator left parenthesis H e a t left parenthesis A right parenthesis space plus space H e a t left parenthesis B right parenthesis right parenthesis over denominator 2 end fraction
      4. fraction numerator left parenthesis H e a t left parenthesis A right parenthesis space minus space H e a t left parenthesis B right parenthesis right parenthesis over denominator 2 end fraction
      Grade-9
      Physics

      The temperature _____ on the kinetic energy of the constituent particles.

      1. Does not depend
      2. Depends directly
      3. Depends indirectly
      4. Depends inversely

      The temperature _____ on the kinetic energy of the constituent particles.

      PhysicsGrade-9
      1. Does not depend
      2. Depends directly
      3. Depends indirectly
      4. Depends inversely
      Grade-9
      Physics

      0 K = ____ oC

      1. -100.15
      2. 100.15
      3. 273.15
      4. -273.15

      0 K = ____ oC

      PhysicsGrade-9
      1. -100.15
      2. 100.15
      3. 273.15
      4. -273.15
      parallel
      Grade-9
      Physics

      Which of the following represents the absolute zero temperature?

      1. 0 K
      2. 0oC
      3. 0oF
      4. All of the above

      Which of the following represents the absolute zero temperature?

      PhysicsGrade-9
      1. 0 K
      2. 0oC
      3. 0oF
      4. All of the above
      Grade-9
      Physics

      The S I unit of temperature is _____.

      1. Degree Celsius
      2. Degree Fahrenheit
      3. Kelvin
      4. Joules

      The S I unit of temperature is _____.

      PhysicsGrade-9
      1. Degree Celsius
      2. Degree Fahrenheit
      3. Kelvin
      4. Joules
      Grade-9
      Physics

      Temperature can be measured by ____.

      1. Calorimetry
      2. Barometer
      3. Odometer
      4. Thermometer 

      Temperature can be measured by ____.

      PhysicsGrade-9
      1. Calorimetry
      2. Barometer
      3. Odometer
      4. Thermometer 
      parallel
      Grade-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?

      1. 173K
      2. 252K
      3. 181K
      4. 212K

      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
      1. 173K
      2. 252K
      3. 181K
      4. 212K
      Grade-9
      Chemistry

      What is the shape of the graph for the pressure-temperature for an ideal gas?

      1. Hyperbola
      2. Parabola
      3. Straight line
      4. Semi-circle

      What is the shape of the graph for the pressure-temperature for an ideal gas?

      ChemistryGrade-9
      1. Hyperbola
      2. Parabola
      3. Straight line
      4. Semi-circle
      Grade-9
      Chemistry

      If all other conditions remain constant, then select the pair of variables are inversely proportional to one another for a gas?

      1. P, V
      2. P, T
      3. V,P
      4. n, V

      If all other conditions remain constant, then select the pair of variables are inversely proportional to one another for a gas?

      ChemistryGrade-9
      1. P, V
      2. P, T
      3. V,P
      4. n, V
      parallel

      card img

      With Turito Academy.

      card img

      With Turito Foundation.

      card img

      Get an Expert Advice From Turito.

      Turito Academy

      card img

      With Turito Academy.

      Test Prep

      card img

      With Turito Foundation.