Work & Energy Flashcards
All 4 cards in this deck
What is the equation for work done?
work done = force × distance moved in the direction of the force, — unit: joule (J), also written N m.
How can you measure the work done by a force pulling a block along a bench?
Measure the force with a newtonmeter and the distance moved in the direction of the force with a ruler, then work done = force × distance.
True or false? To calculate the work done against friction when a box is pushed up a slope, you use the vertical height of the slope.
False. You use the distance moved along the slope, because friction acts along the slope.
What is meant by work done on an object?
The energy transferred when a force moves the object through a distance in the direction of the force.