Final Assessment: Work, Energy And Simple Machines

Test your complete Work and Energy readiness

ScienceGrade 9Mixed16 questions32 min

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Section A: Work and Power · 4 questionsSection B: Energy and Conservation · 8 questionsSection C: Simple Machines · 4 questions

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Review scientific work and power calculations.

Choose the best answer.

Question 1

EasyQuestion

Which option correctly completes this statement: For scientific work to be done on an object, a force must cause?

Topic: Work and Power · Skill: Define work done by constant force

Question 2

MediumQuestion

A force of $20\,N$ moves a body by $4\,m$ in the direction of the force. How much work is done?

Topic: Work and Power · Skill: Calculate work done by force

Question 3

EasyQuestion

Which SI unit is used to measure power?

Topic: Work and Power · Skill: Define power and its unit

Question 4

MediumQuestion

If $200\,J$ of work is done in $10\,s$ , what is the power developed?

Topic: Work and Power · Skill: Calculate power

Review energy forms, KE, PE and conservation.

Choose the best answer.

Question 5

EasyQuestion

What is the SI unit of energy?

Topic: Energy Basics · Skill: Explain energy and its SI unit

A chapter-end assessment covering work, power, energy, kinetic and potential energy, conservation and mechanical advantage.

Define work done by constant force, Calculate work done by force, Define power and its unit, Calculate power, Explain energy and its SI unit