Physics - Work and Power Practice Problems

Physics - Work and Power Practice Problems

Assessment

Flashcard

Science

6th - 8th 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 Work in Physics?

Back

Work is done when a force causes an object to move. It is calculated as the product of the force and the distance moved in the direction of the force. Formula: Work (W) = Force (F) x Distance (d).

2.

FLASHCARD QUESTION

Front

What is Power in Physics?

Back

Power is the rate at which work is done or energy is transferred. It is calculated as the work done divided by the time taken. Formula: Power (P) = Work (W) / Time (t).

3.

FLASHCARD QUESTION

Front

How do you calculate Work?

Back

Work is calculated using the formula: Work (W) = Force (F) x Distance (d). For example, if a force of 10 N moves an object 5 m, the work done is 50 J.

4.

FLASHCARD QUESTION

Front

How do you calculate Power?

Back

Power is calculated using the formula: Power (P) = Work (W) / Time (t). For example, if 100 J of work is done in 4 seconds, the power is 25 W.

5.

FLASHCARD QUESTION

Front

What is the unit of Work?

Back

The unit of Work is the Joule (J). 1 Joule is defined as the work done when a force of 1 Newton moves an object 1 meter.

6.

FLASHCARD QUESTION

Front

What is the unit of Power?

Back

The unit of Power is the Watt (W). 1 Watt is equal to 1 Joule per second (1 W = 1 J/s).

7.

FLASHCARD QUESTION

Front

If a climber lifts a weight of 900 N to a height of 100 m, how much work is done?

Back

The work done is 90,000 J (Work = Force x Distance = 900 N x 100 m).

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