Loading the lesson
Loading the lesson
Search AllRounder.ai
Search the courses, subjects, tracks, games and features, or jump straight to a page.
Search the courses, subjects, tracks, games and features, or jump straight to a page.
4 cards from this section. Quick, good the night before a test.
What is the formula for work?
Think about the components of force and displacement.
What units are used to measure energy?
Remember units for work and energy are the same.
What is the formula for power?
Consider how quickly work is done.
True or False: Zero work is done when there is no displacement.
Think about the definition of work.
A cyclist applies a constant force of 50 N to pedal uphill at an angle of 20 degrees for a distance of 10 m. Calculate the work done by the cyclist.
Remember to include the cosine of the angle.
A roller coaster with a mass of 200 kg reaches a height of 30 m. Calculate its potential energy at that height.
Consider the mass, height, and gravity to find potential energy.
5 more questions in this section. Enroll free to practise them all.
Enroll free