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CREATE HOME WORK QUESTIONS FOR LESSON TOPIC BASED ON WORK...IN PHYSICAL SCIENCE, MATTER AND ENERGY, ENERGY AND WORK

TOPIC: WORK

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Sure! Here are some homework questions based on the topic of "Work" in the context of Physical Science, specifically focusing on Matter and Energy, Energy, and Work:

Homework Questions on Work

Multiple Choice Questions:

  1. What is the formula for calculating work done? a) Work = Force × Mass
    b) Work = Force × Distance
    c) Work = Mass × Energy
    d) Work = Energy × Distance

  2. If a person lifts a box weighing 20 kg to a height of 2 meters, what is the work done against gravity? (Assume g = 9.8 m/s²) a) 39.2 Joules
    b) 196 Joules
    c) 400 Joules
    d) 80 Joules

  3. Which of the following scenarios does NOT involve work being done? a) A person pushing a stalled car
    b) A student holding a heavy textbook above their head
    c) A child pulling a wagon across flat ground
    d) A hammer driving a nail into wood

Short Answer Questions:

  1. Define work in terms of physics. What are the key factors that must be present for work to occur?

  2. Explain how work done is related to energy transfer. Provide an example to illustrate your point.

  3. A force of 50 N is applied to push a shopping cart 3 meters across the floor. How much work is done? Show your calculation.

Problem-Solving Questions:

  1. A force of 100 N is used to lift a weight 1.5 meters vertically. Calculate the work done and discuss how this work could be converted into potential energy.

  2. If a cyclist does 300 J of work to maintain a speed on flat ground, discuss what impacts the total work done if the cyclist encounters a hill. What changes may occur?

  3. Imagine you are pushing a box across a surface with a constant force of 80 N for 5 meters. If the force of friction acting against the box is 20 N, calculate the net work done on the box.

Discussion Questions:

  1. Discuss the difference between positive work and negative work. Provide examples of each.

  2. How does the angle between the force applied and the direction of motion affect the amount of work done?

  3. Consider two teams doing the same amount of work, where one team is more efficient in their approach. How does efficiency in doing work relate to energy consumption? Discuss in terms of an energy perspective.

Feel free to modify or adapt any of these questions as per the requirements of your lesson!