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    Physics
    Grade-7
    Easy

    Question

    Direction : Is this an example of kinetic energy?
    Stretched rubber band

    1. Yes
    2. No

    Hint:

    No

    The correct answer is: No

      When you stretch a rubber band the energy transferred is stored in the form of potential energy. When elastic is stretched its loaded with potential energy while only when it is released there is a shift in kinetic energy.
      A rubber band that is stretched has elastic potential energy, because when released, the rubber will spring back to its resting state, transferring the potential energy to kinetic energy in the process.

      Related Questions to study

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      Direction : Is this an example of kinetic energy?
      Motion of a meteor

      1. Yes
      2. No

      Direction : Is this an example of kinetic energy?
      Motion of a meteor

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      1. Yes
      2. No
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      Kinetic energy and velocity are related as

      1. K E space proportional to space v squared
      2. KE space proportional to space 1 over straight V squared
      3. KE space proportional to space straight v
      4. KE space proportional to 1 over straight v squared

      Kinetic energy and velocity are related as

      PhysicsGrade-7
      1. K E space proportional to space v squared
      2. KE space proportional to space 1 over straight V squared
      3. KE space proportional to space straight v
      4. KE space proportional to 1 over straight v squared
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      Kinetic energy and mass are related as

      1. KE space proportional to space straight m
      2. KE space proportional to space 1 over straight m
      3. KE space proportional to space straight m squared
      4. KE space proportional to space 1 over straight m squared

      Kinetic energy and mass are related as

      PhysicsGrade-7
      1. KE space proportional to space straight m
      2. KE space proportional to space 1 over straight m
      3. KE space proportional to space straight m squared
      4. KE space proportional to space 1 over straight m squared
      parallel
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      Identify the correct formula for calculating kinetic energy.

      1. KE space equals space 1 half space mv squared
      2. KE space equals space 2 mv squared
      3. KE = 2mv
      4. KE space equals space 1 half mv

      Identify the correct formula for calculating kinetic energy.

      PhysicsGrade-7
      1. KE space equals space 1 half space mv squared
      2. KE space equals space 2 mv squared
      3. KE = 2mv
      4. KE space equals space 1 half mv
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      The SI unit of kinetic energy is ______.

      1. Kg m/s
      2. Kg m2/s
      3. Kg m2/s2
      4. Kg s/m

      The SI unit of kinetic energy is ______.

      PhysicsGrade-7
      1. Kg m/s
      2. Kg m2/s
      3. Kg m2/s2
      4. Kg s/m
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      Kinetic energy is defined as

      1. The energy of a body due to its motion
      2. The energy of a body due to its mass
      3. The energy of a body due to its position
      4. The energy of a body due to its shape

      Kinetic energy is defined as

      PhysicsGrade-7
      1. The energy of a body due to its motion
      2. The energy of a body due to its mass
      3. The energy of a body due to its position
      4. The energy of a body due to its shape
      parallel
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      What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes 5 v

      1. 5KE
      2. 1 fifthKE
      3. 25 KE
      4. 1 over 25 space K E

      What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes 5 v

      PhysicsGrade-7
      1. 5KE
      2. 1 fifthKE
      3. 25 KE
      4. 1 over 25 space K E
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      What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes v/3

      1. 3KE
      2. 9KE
      3. fraction numerator K E over denominator 3 end fraction
      4. fraction numerator K E over denominator 9 end fraction

      What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes v/3

      PhysicsGrade-7
      1. 3KE
      2. 9KE
      3. fraction numerator K E over denominator 3 end fraction
      4. fraction numerator K E over denominator 9 end fraction
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      What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes 3 v

      1. 3KE
      2. 9KE
      3. fraction numerator K E over denominator 3 end fraction
      4. fraction numerator K E over denominator 9 end fraction

      What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes 3 v

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      1. 3KE
      2. 9KE
      3. fraction numerator K E over denominator 3 end fraction
      4. fraction numerator K E over denominator 9 end fraction
      parallel
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      Which of the bodies given below has more kinetic energy when mass is constant?
      A) 3 m/s
      B) 6 m/s

      1. 3m/s
      2. 6m/s
      3. Both A and B
      4. None

      Which of the bodies given below has more kinetic energy when mass is constant?
      A) 3 m/s
      B) 6 m/s

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      1. 3m/s
      2. 6m/s
      3. Both A and B
      4. None
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      Velocity is ____ proportional to the kinetic energy.

      1. Directly
      2. Inversely
      3. Initially directly and then inversely
      4. Initially inversely and then directly

      Velocity is ____ proportional to the kinetic energy.

      PhysicsGrade-7
      1. Directly
      2. Inversely
      3. Initially directly and then inversely
      4. Initially inversely and then directly
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      What can you say about the kinetic energy when both have the same mass?
      A) 2 m/s
      B) 4 over 2 m/s

      1. K E subscript A space equals space K E subscript B
      2. K E subscript A space greater than K E subscript B
      3. K E subscript A less than K E subscript B
      4. KEA ≥ KEB

      What can you say about the kinetic energy when both have the same mass?
      A) 2 m/s
      B) 4 over 2 m/s

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      1. K E subscript A space equals space K E subscript B
      2. K E subscript A space greater than K E subscript B
      3. K E subscript A less than K E subscript B
      4. KEA ≥ KEB
      parallel
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      Which of the bodies given below has less kinetic energy when both have the same mass?
      A) 3 m/s
      B) 6 m/s

      1. A
      2. B
      3. A & B
      4. None 

      Which of the bodies given below has less kinetic energy when both have the same mass?
      A) 3 m/s
      B) 6 m/s

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      1. A
      2. B
      3. A & B
      4. None 
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      Which of the bodies given below has more kinetic energy when both have the same mass?
      A) 2 m/s
      B) 3 m/s

      1. A
      2. B
      3. A & B
      4. None 

      Which of the bodies given below has more kinetic energy when both have the same mass?
      A) 2 m/s
      B) 3 m/s

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      1. A
      2. B
      3. A & B
      4. None 
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      Physics

      Which of the bodies given below has less kinetic energy when both have the same mass?
      A) 1 m/s
      B) 1 half m/s

      1. A
      2. B
      3. A & B
      4. None 

      Which of the bodies given below has less kinetic energy when both have the same mass?
      A) 1 m/s
      B) 1 half m/s

      PhysicsGrade-7
      1. A
      2. B
      3. A & B
      4. None 
      parallel

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