Work and Power Problems

Flashcard
•
Science
•
10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the formula for calculating work done?
Back
Work (W) = Force (F) × Distance (d) × cos(θ), where θ is the angle between the force and the direction of motion.
2.
FLASHCARD QUESTION
Front
What are the SI units for work?
Back
The SI unit for work is the Joule (J).
3.
FLASHCARD QUESTION
Front
If a weightlifter lifts two 300 N weights 1.5 m, how much work is done?
Back
900 J.
4.
FLASHCARD QUESTION
Front
How do you calculate the work done when pushing an object?
Back
Work is calculated by multiplying the force applied by the distance moved in the direction of the force.
5.
FLASHCARD QUESTION
Front
What is the relationship between work and energy?
Back
Work done on an object results in a change in energy of that object.
6.
FLASHCARD QUESTION
Front
What is the formula for calculating power?
Back
Power (P) = Work (W) / Time (t).
7.
FLASHCARD QUESTION
Front
What are the SI units for power?
Back
The SI unit for power is the Watt (W), which is equivalent to 1 Joule per second.
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