The total energy after an elastic collision

Remains constant

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Decreases

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Increases

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First increase and then becomes constants

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Solution

The correct option is A
Remains constant

In an elastic collision the total energy of molecules before and after collision remains same. There is an exchange of energy between the colliding molecules. Their individual energies may also change but the sum of their energies remains constant.

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Similar questions

Q. When an object falls freely towards the earth, then its total energy :

(a) increases
(b) decreases
(c) remains constant
(d) first increases and then decreases

Q. Question 1
When a body falls freely towards the earth, then its total energy

(a) increases
(b) decreases
(c) remains constant
(d) first increases and then decreases

Q. When a hot liquid is mixed with a cold liquid, the temperature of the mixture

(a) first decreases then becomes constant
(b) first increases then becomes constant
(c) continuously increases
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Consider the Arrhenius equation given below and mark the correct option.
$k = A . e - \frac{E_{a}}{R T}$
(a) Rate constant increases exponentially with increasing activation energy and decreasing temperature
(b) Rate constant decreases exponentially with increasing activation energy and decreasing temperature
(c) Rate constant increases exponentially with decreasing activation energy and decreasing temperature
(d) Rate constant increases exponentially with decreasing activation energy and increasing temperature

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The total energy after an elastic collision

The correct option is A Remains constant In an elastic collision the total energy of molecules before and after collision remains same. There is an exchange of energy between the colliding molecules. Their individual energies may also change but the sum of their energies remains constant.

The correct option is A
Remains constant

In an elastic collision the total energy of molecules before and after collision remains same. There is an exchange of energy between the colliding molecules. Their individual energies may also change but the sum of their energies remains constant.