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Concept 4: Work and Power Calculations Test

Concept 4: Work and Power Calculations Test

Assessment

Flashcard

Physics

9th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the formula for calculating work?

Back

W = F * d, where W is work, F is force, and d is distance.

2.

FLASHCARD QUESTION

Front

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

Back

The unit of work is the Joule (J).

3.

FLASHCARD QUESTION

Front

How do you calculate power?

Back

P = W / t, where P is power, W is work, and t is time.

4.

FLASHCARD QUESTION

Front

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

Back

The unit of power is the Watt (W).

5.

FLASHCARD QUESTION

Front

If a force of 10 N is applied over a distance of 5 m, how much work is done?

Back

W = F * d = 10 N * 5 m = 50 J.

6.

FLASHCARD QUESTION

Front

If 200 J of work is done in 10 seconds, what is the power?

Back

P = W / t = 200 J / 10 s = 20 W.

7.

FLASHCARD QUESTION

Front

What does it mean if work is done against gravity?

Back

It means that the force applied must overcome the gravitational force acting on the object.

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