Understanding Work Done and Power

What is the definition of work done in physics?

• The amount of energy transferred by a force acting through a distance.

• The speed at which an object moves.

• The force applied to an object without causing movement.

• The time taken to complete a task.

Which formula is used to calculate work done?

• Work Done = Force × Distance

• Work Done = Mass × Acceleration

• Work Done = Speed × Time

• Work Done = Power × Time

If a force of 10 N is applied to move an object 5 metres, what is the work done?

• 15 Joules

• 50 Joules

• 5 Joules

• 500 Joules

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

• Newton

• Joule

• Watt

• Pascal

How is power calculated in terms of work done and time?

• Power = Work Done × Time

• Power = Work Done ÷ Time

• Power = Force × Distance

• Power = Mass × Acceleration

If 100 Joules of work is done in 5 seconds, what is the power?

• 20 Watts

• 500 Watts

• 5 Watts

• 50 Watts

Which of the following is an example of power calculation?

• Calculating the distance travelled by a car.

• Determining the speed of a runner.

• Finding the energy used by a light bulb in a given time.

• Measuring the weight of an object.

If a machine does 2000 Joules of work in 10 seconds, what is its power output?

• 200 Watts

• 20 Watts

• 2000 Watts

• 2 Watts

What is the relationship between power, work done, and time?

• Power is the product of work done and time.

• Power is the sum of work done and time.

• Power is the difference between work done and time.

• Power is the rate at which work is done over time.

• 245 Watts

• 98 Watts

• 24.5 Watts

• 490 Watts