Work and energy - Free Printable
Educational worksheet: Work and energy. Download and print for classroom or home learning activities.
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Step-by-step solution for: Work and energy
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Show Answer Key & Explanations
Step-by-step solution for: Work and energy
Let's solve this worksheet step by step, based on basic physics concepts related to work and energy. These are foundational ideas in science, especially in the study of forces and motion.
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1. In science, ____________ is done when a force changes the motion of an object.
✔ Answer: Work
*Explanation:* In physics, "work" is defined as the transfer of energy that occurs when a force causes an object to move. If the force changes the object’s motion (e.g., starts it moving, stops it, or changes its direction), then work is done.
2. Picking up a book is work because a force is used and the book ____________.
✔ Answer: moves
*Explanation:* When you pick up a book, you apply an upward force, and the book moves upward. Since both force and displacement occur in the same direction, work is done.
3. Dropping a book is work because ____________ changes the motion of the book.
✔ Answer: gravity
*Explanation:* When you drop a book, gravity pulls it downward, changing its motion from rest to falling. Gravity is the force doing the work here.
4. Work is not done on an object when you push it and it does not ____________.
✔ Answer: move
*Explanation:* For work to be done, there must be movement in the direction of the applied force. If you push a wall and it doesn’t move, no work is done—even though you may feel tired.
5. Picking up a boulder is ____________ work than picking up a pebble.
✔ Answer: more
*Explanation:* The boulder has greater mass and requires more force to lift. Since work = force × distance, lifting a heavier object involves more work.
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6. People need ____________ to do work.
✔ Answer: energy
*Explanation:* Energy is required to perform any kind of work. Your body uses chemical energy (from food) to lift objects or move.
7. The ability to do ____________ is a way to describe ____________.
✔ Answer: work; energy
*Explanation:* Energy is defined as the ability to do work. So, if something can cause a change through force and motion, it has energy.
8. Energy makes it possible for changes in ____________ to take place.
✔ Answer: matter
*Explanation:* Energy allows changes in matter—such as motion, temperature, shape, or state (solid → liquid). Without energy, no physical or chemical change can happen.
9. The two main forms of energy are ____________ and ____________.
✔ Answer: kinetic energy and potential energy
*Explanation:*
- Kinetic energy is the energy of motion (e.g., a moving car).
- Potential energy is stored energy due to position or condition (e.g., a book on a shelf has gravitational potential energy).
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1. Work
2. moves
3. gravity
4. move
5. more
6. energy
7. work; energy
8. matter
9. kinetic energy; potential energy
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This worksheet helps students understand the relationship between force, motion, work, and energy—key concepts in physics. Let me know if you'd like a version formatted for printing or explanation with diagrams!
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What is work?
1. In science, ____________ is done when a force changes the motion of an object.
✔ Answer: Work
*Explanation:* In physics, "work" is defined as the transfer of energy that occurs when a force causes an object to move. If the force changes the object’s motion (e.g., starts it moving, stops it, or changes its direction), then work is done.
2. Picking up a book is work because a force is used and the book ____________.
✔ Answer: moves
*Explanation:* When you pick up a book, you apply an upward force, and the book moves upward. Since both force and displacement occur in the same direction, work is done.
3. Dropping a book is work because ____________ changes the motion of the book.
✔ Answer: gravity
*Explanation:* When you drop a book, gravity pulls it downward, changing its motion from rest to falling. Gravity is the force doing the work here.
4. Work is not done on an object when you push it and it does not ____________.
✔ Answer: move
*Explanation:* For work to be done, there must be movement in the direction of the applied force. If you push a wall and it doesn’t move, no work is done—even though you may feel tired.
5. Picking up a boulder is ____________ work than picking up a pebble.
✔ Answer: more
*Explanation:* The boulder has greater mass and requires more force to lift. Since work = force × distance, lifting a heavier object involves more work.
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What is energy?
6. People need ____________ to do work.
✔ Answer: energy
*Explanation:* Energy is required to perform any kind of work. Your body uses chemical energy (from food) to lift objects or move.
7. The ability to do ____________ is a way to describe ____________.
✔ Answer: work; energy
*Explanation:* Energy is defined as the ability to do work. So, if something can cause a change through force and motion, it has energy.
8. Energy makes it possible for changes in ____________ to take place.
✔ Answer: matter
*Explanation:* Energy allows changes in matter—such as motion, temperature, shape, or state (solid → liquid). Without energy, no physical or chemical change can happen.
9. The two main forms of energy are ____________ and ____________.
✔ Answer: kinetic energy and potential energy
*Explanation:*
- Kinetic energy is the energy of motion (e.g., a moving car).
- Potential energy is stored energy due to position or condition (e.g., a book on a shelf has gravitational potential energy).
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✔ Final Answers:
1. Work
2. moves
3. gravity
4. move
5. more
6. energy
7. work; energy
8. matter
9. kinetic energy; potential energy
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This worksheet helps students understand the relationship between force, motion, work, and energy—key concepts in physics. Let me know if you'd like a version formatted for printing or explanation with diagrams!
Parent Tip: Review the logic above to help your child master the concept of work and energy worksheet.
