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4 cards from this section. Quick, good the night before a test.
Define positive work and provide an example.
Think of actions that involve lifting or pushing.
What is zero work?
Consider examples where you carry something without changing its height.
What is work in physics?
Remember the formula involves both force and distance.
When is work considered negative?
Think about forces that slow down objects.
A box is pushed with a force of 50 N at an angle of Theta. If it moves 10 m horizontally and Theta is 30 degrees, what is the work done?
Use the angle's cosine in your calculation.
Can you find a situation where work might be calculated as zero during a sport like basketball? Describe the scenario.
Consider movements that don't translate.
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