right for a particular person or purpose

deal with a problem or difficulty successfully

say funny things to make others laugh

suddenly appear, usually in large numbers

give an example to support something you've said

make a decision at a particular moment

round handle or switch for opening something or turning it on

a tool that you use to hit nails into wood

knowledge or understanding of a subject

closed metal container for food

ability to share someone else's feelings

study of how characteristics are passed from parent to child through genes in our DNA

at a unknown time in the future

something that influences whether or how an event happens

a small tool or a machine that does something useful

a scientific test to see if you get a particular result

a person who plays or writes music, especially professionally

parts of a knife that are used for cutting

number of things of a similar kind

suddenly appear, usually in large numbers

give somebody courage and confidence to do something

work hard (often to change people's ideas)

ask for a product to be made or sent to you

at an unknown time in the future

right for a particular person or purpose

knowledge or understanding of a subject

ability to share someone else's feelings

number of things of a similar kind

a tool that you operate using electricity

something that influences whether or how an event happens

scientific test to see if you get a particular result

ask for a product to be made or sent to you

Choices D - Unit 10 (p.63)

Choices D - Unit 10 (p.64-65)

## Fill in the Blank Fill in the blank with the correct words: 1. Work is the use of _____________ to move an object. _____________ 2. Only the part of the applied force that acts in the same _____________ as motion does work. _____________ 3. Work transfers _____________ from one form to another. _____________ 4. The unit of work is the _____________ (J). _____________ 5. The formula for work is _____________ . _____________ [Word Bank]: force, direction, energy, joule, $W = F \times d$ ## Multiple Choice Questions Choose the correct answer from the choices for each question: 1. Which statement best describes when work is done on an object? * A. A force acts on the object while it moves in the same direction as the force. * B. A force acts on the object while it does not move. * C. The object moves but no force is applied. * D. A force acts opposite to the motion and the object does not move. 2. If a force of 10 N moves an object 3 m in the same direction as the force, how much work is done? * A. 3 J * B. 10 J * C. 30 J * D. 13 J 3. Which unit correctly measures work? * A. Newton (N) * B. Meter (m) * C. Joule (J) * D. Watt (W) 4. If a force acts perpendicular to the motion of an object, how much work does that component do? * A. Maximum work * B. Zero work * C. Negative work * D. Equal to force times distance 5. Using the example from the passage, the work done lifting a 30 N dog 2 m is: * A. 15 J * B. 60 J * C. 32 J * D. 90 J ## Open-Ended Questions Answer the following questions in complete sentences: 1. Explain in your own words why only the component of force in the direction of motion does work. 2. A student pushes a box with a 25 N horizontal force and the box moves 4 m horizontally. Calculate the work done and show your steps using the formula from the passage. 3. Describe one real-life example (not in the passage) where work transfers energy from one form to another. Identify the force, the distance, and the energy transfer.

Choices D - Unit 11 (words p.69)

Choices D - Unit 12 (words p.75)

Choices D - Unit 13 (words p.81)

Choices D - Unit 11 (words p.70-71)

Choices D - unit 14 (words p.88)

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