Question: In which type of collision is kinetic energy conserved? (2019)
Options:
Elastic collision
Inelastic collision
Perfectly inelastic collision
All of the above
Correct Answer: Elastic collision
Exam Year: 2019
Solution:
In an elastic collision, both momentum and kinetic energy are conserved.
In which type of collision is kinetic energy conserved? (2019)
Practice Questions
Q1
In which type of collision is kinetic energy conserved? (2019)
Elastic collision
Inelastic collision
Perfectly inelastic collision
All of the above
Questions & Step-by-Step Solutions
In which type of collision is kinetic energy conserved? (2019)
Step 1: Understand what a collision is. A collision is when two objects hit each other.
Step 2: Learn about different types of collisions. There are two main types: elastic and inelastic.
Step 3: Know that in an elastic collision, both momentum and kinetic energy are conserved. This means that the total energy and motion before the collision is the same as after.
Step 4: In an inelastic collision, momentum is conserved, but kinetic energy is not. Some energy is transformed into other forms, like heat or sound.
Step 5: Conclude that the type of collision where kinetic energy is conserved is called an elastic collision.
Elastic Collision – A type of collision where both momentum and kinetic energy are conserved.
Inelastic Collision – A type of collision where momentum is conserved, but kinetic energy is not.
Perfectly Inelastic Collision – A type of collision where the objects stick together after the collision, conserving momentum but not kinetic energy.
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