NEWish Amazing Unit 3 flashcardziz

NEWish Amazing Unit 3 flashcardziz

Assessment

Flashcard

Physics

11th Grade

Hard

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14 questions

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1.

FLASHCARD QUESTION

Front

What is impulse in physics?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time. It is calculated as the product of force and the time duration over which the force acts.

2.

FLASHCARD QUESTION

Front

How is impulse related to momentum?

Back

Impulse is equal to the change in momentum of an object. Mathematically, Impulse = Change in Momentum = Final Momentum - Initial Momentum.

3.

FLASHCARD QUESTION

Front

What happens to impulse when a car crashes into a wall versus a haystack?

Back

The impulse experienced by the car is the same in both cases, as it depends on the change in momentum, which is constant regardless of the type of object.

4.

FLASHCARD QUESTION

Front

What is the formula for calculating impulse?

Back

Impulse (J) = Force (F) × Time (t) or J = Δp (change in momentum).

5.

FLASHCARD QUESTION

Front

What is the relationship between force, time, and impulse?

Back

Impulse is directly proportional to the force applied and the time duration over which it is applied. If time increases while impulse remains constant, force must decrease.

6.

FLASHCARD QUESTION

Front

Why does a longer crash time reduce the force experienced by a passenger?

Back

A longer crash time increases the time over which the impulse is applied, thus reducing the average force experienced by the passenger according to the impulse-momentum theorem.

7.

FLASHCARD QUESTION

Front

What is the effect of a negative impulse on an object's momentum?

Back

A negative impulse decreases the momentum of an object, meaning it will slow down.

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