Helping Us Work: What Is Work?

The video tutorial explains the concept of work in physics, using everyday household tasks as examples. It defines work as the movement of an object caused by a force. Examples include moving a book or shoveling snow. If an object does not move, no work is done.

Which of the following activities is mentioned as an example of work done around the home?

• Reading a book

• Watching TV

• Listening to music

• Cleaning your room

In physics, when is an action considered to be work?

• When an object is stationary

• When a force is applied but the object does not move

• When a force moves an object

• When energy is conserved

Which of the following is an example of work as defined in physics?

• Sitting on a chair

• Standing still

• Moving a book from one place to another

• Holding a book still

What happens when an object does not move, even if a force is applied?

• No work is done

• Force is increased

• Energy is lost

• Work is done

Which statement is true about work in physics?

• Work is done only when an object is lifted

• Work requires both force and movement

• Work is done when an object is at rest

• Work is independent of force