4.6 - Assessments: Lab Report and Discussion
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Practice Questions
Test your understanding with targeted questions
What is the first section of a lab report?
💡 Hint: What do you intend to find out?
What do we call the educated guess about an experiment's outcome?
💡 Hint: It's your prediction before you start the experiment.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the aim of a lab report?
💡 Hint: What do you hope to learn through this experiment?
True or False: Efficiency measures how effectively a machine converts input energy into output work.
💡 Hint: Think about what efficiency tells us regarding energy use.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
A student conducted an experiment with a lever. They applied 30 N of force to lift a load of 90 N. Calculate the efficiency of the lever if the distance moved by the load was 0.5 m and the input distance was 1.5 m.
💡 Hint: Use the work done to find the efficiency.
In an experiment comparing two different pulley systems, one system has an efficiency of 80% and the other has an efficiency of 60%. If both systems are inputting 200 J of energy, how much useful work is being produced by each?
💡 Hint: Remember to convert efficiency into a decimal when calculating work!
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