Work and Energy Flashcardziz

Work and Energy Flashcardziz

Assessment

Flashcard

Physics

12th Grade

Hard

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16 questions

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1.

FLASHCARD QUESTION

Front

What does the Work Energy Theorem state?

Back

The Work Energy Theorem states that the change in kinetic energy of an object is equal to the work done on that object.

2.

FLASHCARD QUESTION

Front

Is the Work Energy Theorem applicable to thermal energy?

Back

No, the Work Energy Theorem specifically relates to kinetic energy, not thermal energy.

3.

FLASHCARD QUESTION

Front

How do you calculate kinetic energy?

Back

Kinetic energy (KE) is calculated using the formula KE = 0.5 * m * v^2, where m is mass and v is velocity.

4.

FLASHCARD QUESTION

Front

If a 0.34 kg object has a kinetic energy of 135 Joules, what is its velocity?

Back

28.18 m/s.

5.

FLASHCARD QUESTION

Front

What is the formula to find the final velocity of an object falling from a height?

Back

The final velocity (v) can be calculated using the formula v = sqrt(2 * g * h), where g is the acceleration due to gravity (9.81 m/s²) and h is the height.

6.

FLASHCARD QUESTION

Front

What is the final velocity of an object dropped from a height of 32 m?

Back

25 m/s.

7.

FLASHCARD QUESTION

Front

How do you find the velocity of an object falling from a height of 2.1 m?

Back

Use the formula v = sqrt(2 * g * h). For h = 2.1 m, v = 6.42 m/s.

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