Virtual Labs

COEFFICIENT OF RESTITUTION AND CONSERVATION OF LINEAR MOMENTUM

In a perfectly elastic collision, what happens to the total kinetic energy of the system?

a: It increases Explanation

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b: It decreases Explanation

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c: It remains constant Explanation

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d: It becomes zero Explanation

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What quantity is conserved during any collision, whether elastic, inelastic, or perfectly inelastic?

a: Kinetic energy Explanation

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b: Momentum Explanation

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c: Potential energy Explanation

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d: Frictional force Explanation

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Which law states that the total momentum of an isolated system remains constant unless acted upon by an external force?

a: Newton's First Law Explanation

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b: Newton's Second Law Explanation

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c: Newton's Third Law Explanation

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d: Law of Conservation of Linear Momentum Explanation

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What is the coefficient of restitution (e) for a perfectly inelastic collision?

a: 0 Explanation

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b: 1 Explanation

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c: Less than 1 Explanation

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d: Greater than 1 Explanation

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Which factor could affect the accuracy of experimental results when investigating the conservation of linear momentum and kinetic energy in collisions?

a: Air resistance Explanation

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b: Temperature Explanation

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c: Color of the objects Explanation

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d: Altitude Explanation

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How is the percentage difference in momentum calculated before and after a collision?

a: Subtract the final momentum from the initial momentum Explanation

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b: Divide the difference in momentum by the initial momentum Explanation

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c: Multiply the difference in momentum by 100 Explanation

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d: All of the above Explanation

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What does the law of conservation of linear momentum imply about the total momentum of a closed system?

a: It increases over time Explanation

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b: It decreases over time Explanation

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c: It remains constant over time Explanation

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d: It fluctuates randomly over time Explanation

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What type of collision results in a loss of kinetic energy?

a: Perfectly elastic Explanation

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b: Perfectly inelastic Explanation

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c: Partially elastic Explanation

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d: All collisions conserve kinetic energy Explanation

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What is the purpose of using an air track in collision experiments?

a: To reduce friction between objects Explanation

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b: To increase air resistance Explanation

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c: To measure temperature accurately Explanation

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d: To provide a cushioning effect during collisions Explanation

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Which of the following equations represents the impulse-momentum principle?

a: F=ma Explanation

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b: Δp=F⋅Δt Explanation

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c: F=Δp / Δt Explanation

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d: F=mv / t Explanation

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