Worksheet: Mechanical Projects - 2 | DIY Science Fun: Cool School Projects - Class 6 PDF Download

Fill in the Blanks

Q1: The term "JCB" stands for ________________.

Q2: Hydraulic excavators operate using ________________ as the main component.

Q3: Pascal's law states that when pressure is applied to a fluid inside a closed container, the force is transmitted to the liquid and the container's ________________.

Q4: In the Hydraulic JCB project, the 20 ml syringe is responsible for moving the ________________ part up and down.

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Q5: Hydraulic JCBs make work easier and more efficient in various ________________ scenarios.

Multiple Choice Questions (MCQ)

Q2: What is the main component used in hydraulic systems?
(a) Air
(b) Water
(c) Liquid Fluids
(d) Gasoline

Q3: Which of the following is NOT a type of pressure?
(a) Absolute pressure
(b) Gauge pressure
(c) Atmospheric pressure
(d) Velocity pressure

Q4: What is the formula for calculating pressure?
(a) P = F/A
(b) P = A/F
(c) P = F + A
(d) P = F x A

Q5: What is the function of the 10 ml syringe in the Hydraulic JCB project?
(a) To move the boom part up and down
(b) To move the bucket forward and backward
(c) To control the hydraulic fluid flow
(d) To measure pressure

True or False

Q1: Pascal's law states that when pressure is applied to a fluid inside a closed container, the force is not transmitted to the liquid.

Q2: Hydraulic excavators are commonly used in agriculture but not in construction.

Q3: The 20 ml syringe in the Hydraulic JCB project is responsible for moving the bucket forward and backward.

Q4: The Hydraulic JCB project is an excellent way to learn about important scientific concepts like pressure and hydraulics.

Q5: Hydraulic systems in vehicles are primarily used for steering control.

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Short Answer Questions

Q1: Explain the concept of pressure and provide its formula.

Q2: What is the significance of Pascal's law in hydraulic systems?

Q3: Describe the main components of the Hydraulic JCB project.

Q4: How does the 10 ml syringe contribute to the operation of the Hydraulic JCB model?

Q5: What are the advantages of conducting the Hydraulic JCB project as a science experiment?

Q6: Why is safety important when working on science projects like the Hydraulic JCB?

Q7: Name one practical application of hydraulic systems other than in construction machinery.

Q8: How does the Hydraulic JCB project promote student engagement and motivation in science?

Q9: What is the purpose of wearing safety glasses during the project?

Q10: How does the Hydraulic JCB project demonstrate the principles of hydraulics and pressure?

You can access the solutions to this worksheet here.