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![Samacheer Kalvi solutions for Science - Term 1 [English] Class 4 TN Board chapter 3 - Work and Energy - Shaalaa.com](/images/science-term-1-english-class-4-tn-board_6:5f2b1b2038084cf381bfa42c826a928c.jpg "Samacheer Kalvi solutions for Science - Term 1 [English] Class 4 TN Board chapter 3 - Work and Energy")
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Solutions for Chapter 3: Work and Energy
Below listed, you can find solutions for Chapter 3 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Science - Term 1 [English] Class 4 TN Board.
Samacheer Kalvi solutions for Science - Term 1 [English] Class 4 TN Board 3 Work and Energy Try to Answer [Pages 104 - 111]
Observe the picture and put a tick (✓) if work is done and put a cross (x) if work is not done.
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Mention whether work is done or not in the following activity.
| S. No | Activity | Work done or not done |
| 1. | Pushing the door | |
| 2. | Holding a doll | |
| 3. | Sitting in a bus | |
| 4. | Pushing a wall | |
| 5. | Digging soil |
Identify and mention the types of simple machines.
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| ______ | ______ | _______ |
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| ______ | ______ | ______ |
Complete the table.
| S. No | Types of Simple Machine | Example |
| 1. | Pulley | |
| 2. | Wheel and axle | |
| 3. | Wedge | |
| 4. | Inclined plan | |
| 5. | Lever | |
| 6. | Screw |
Name the load, effort, and fulcrum.
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1. ______ 2. ______ 3. ______ |
1. ______ 2. ______ 3. ______ |
1. ______ 2. ______ 3. ______ |
Samacheer Kalvi solutions for Science - Term 1 [English] Class 4 TN Board 3 Work and Energy Evaluation [Pages 111 - 112]
Use the correct word to fill the blanks.
________ is said to be done when a force is acting on it.
Ramp
Simple machines
Work
Energy
Pulley
The ability to do work is ________.
Ramp
Simple machines
Work
Energy
Pulley
_______ is a machine made up of wheel and rope.
Ramp
Simple machines
Work
Energy
Pulley
______ help us to make work easier.
Ramp
Simple machines
Work
Energy
Pulley
An example for inclined plane is _______.
Ramp
Simple machines
Work
Energy
Pulley
Rearrange the letters and find out the name of the tool.
E D G E W
Rearrange the letters and find out the name of the tool.
R L E V E
| ______ | ______ | ______ | ______ |
Rearrange the letters and find out the name of the tool.
E W C R S
| ______ | ______ | ______ | ______ | ______ |
Match.
| 1. | Class II lever | Drawing water |
| 2. | Pulley | Bicycle |
| 3. | Class I lever | Nut cracker |
| 4. | Wheel and axle | Wind |
| 5. | Renewable resource | Seesaw |
Classify the things below.
| Sl. No | Examples | Class of Lever |
| 1. | Spade | |
| 2. | Seesaw | |
| 3. | Wheel barrow | |
| 4. | Plier | |
| 5. | Nail cutter |
Answer the following.
What is the unit of energy?
Name some simple machines.
What is a first-order lever?
Lemon juicer belongs to which type of lever? Why?
Define work.
Write any three types of energy.
Solutions for 3: Work and Energy
Samacheer Kalvi solutions for Science - Term 1 [English] Class 4 TN Board chapter 3 - Work and Energy
Shaalaa.com has the Tamil Nadu Board of Secondary Education Mathematics Science - Term 1 [English] Class 4 TN Board Tamil Nadu Board of Secondary Education solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Samacheer Kalvi solutions for Mathematics Science - Term 1 [English] Class 4 TN Board Tamil Nadu Board of Secondary Education 3 (Work and Energy) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
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Concepts covered in Science - Term 1 [English] Class 4 TN Board chapter 3 Work and Energy are Concept of Work, Solar Energy, Electrical Energy, Light Energy, Mechanical Energy, A Pulley, An Inclined Plane, A Wedge, Screw, A Wheel and Axle, A Lever, Types of Levers, Heat Energy (Thermal Energy), Chemical Energy, Energy, Conventional energy resources or non-renewable energy resources, Simple Machines, Concept of Work.
Using Samacheer Kalvi Science - Term 1 [English] Class 4 TN Board solutions Work and Energy exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Samacheer Kalvi Solutions are essential questions that can be asked in the final exam. Maximum Tamil Nadu Board of Secondary Education Science - Term 1 [English] Class 4 TN Board students prefer Samacheer Kalvi Textbook Solutions to score more in exams.
Get the free view of Chapter 3, Work and Energy Science - Term 1 [English] Class 4 TN Board additional questions for Mathematics Science - Term 1 [English] Class 4 TN Board Tamil Nadu Board of Secondary Education, and you can use Shaalaa.com to keep it handy for your exam preparation.
