Virtual Labs

COEFFICIENT OF RESTITUTION AND CONSERVATION OF LINEAR MOMENTUM

Which of the following quantities determines the linear momentum of an object?

a: Speed Explanation

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b: Mass Explanation

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c: Volume Explanation

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d: Density Explanation

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What is the unit of momentum in the International System of Units (SI)?

a: Newton (N) Explanation

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b: Joule (J) Explanation

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c: Kilogram-meter per second (kg·m/s) Explanation

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d: Meter per second squared (m/s²) Explanation

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According to the impulse-momentum principle, what happens to the momentum of an object when a constant force is applied to it?

a: The momentum decreases Explanation

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b: The momentum remains constant Explanation

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c: The momentum increases Explanation

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d: The momentum becomes zero 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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In a perfectly elastic collision between two objects, 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 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 would you calculate the percentage difference in momentum 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 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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