Work, Power, & Machines Flashcard

Front

Who is the unit of power named after?

Back

James Watt

Front

Which of the following scenarios involves no work being done?

Back

Carrying a book across a room

Front

What is the formula to calculate power?

Back

Power = Work / Time

Front

If a force of 5N is applied to move an object 10 meters, how much work is done?

Back

50 Joules

Front

What is the unit used to measure work and energy?

Back

Joule

Front

Define work in physics.

Back

Work is done when a force causes an object to move in the direction of the force.

Front

What is the formula for calculating work?

Back

Work = Force x Distance x cos(θ) where θ is the angle between the force and the direction of motion.

Front

What is power in physics?

Back

Power is the rate at which work is done or energy is transferred.

Front

What is the relationship between work and energy?

Back

Work done on an object results in a change in energy of that object.

Front

What is the SI unit of power?

Back

Watt (W), where 1 Watt = 1 Joule/second.