Simple Machines And Complex Machines

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Quizzes Created: 2 | Total Attempts: 5,757

Questions: 10 | Attempts: 5,112 | Updated: Sep 22, 2023

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Simple Machines And Complex Machines - Quiz

This quiz is aimed to test Year 6 pupils on the understanding of simple machines and complex machines.

Questions and Answers

1.

Which of the following is not true?
- A.
  
  Lever - to carry or move heavy objects easily
- B.
  
  Wheel and axle - to cut or separate objects
- C.
  
  Pulley - to lift objects to a higher place
- D.
  
  Gear - to move objects easily
Correct Answer
B. Wheel and axle - to cut or separate objects
2.

Diagram below shows a tool. What are the simple machines found in the tool?
- A.
  
  Lever and screw
- B.
  
  Lever and wedge
- C.
  
  Wedge and screw
- D.
  
  Lever and inclined plane
Correct Answer
B. Lever and wedge

Explanation
The tool shown in the diagram consists of a lever and a wedge. A lever is a simple machine that consists of a rigid bar that pivots around a fixed point called a fulcrum. In the diagram, the long handle of the tool acts as a lever. A wedge is another simple machine that is a triangular-shaped object with a sharp edge. In the diagram, the pointed end of the tool acts as a wedge. Therefore, the correct answer is lever and wedge.

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3.

Diagram below shows the uses of simple machines. What are the simple machines found in the diagram? I Screw II Pulley III Inclined plane IV Wheel and axle
- A.
  
  I and II
- B.
  
  I and IV
- C.
  
  II and III
- D.
  
  III and IV
Correct Answer
D. III and IV

Explanation
The diagram shows two simple machines: III Inclined plane and IV Wheel and axle.

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14
1
4.

Diagram below shows two uses of simple machines. What are X and Y?
- A.
  
  X - Inclined plane, Y - Pulley
- B.
  
  X - Wedge, Y - Pulley
- C.
  
  X - Wheel and axle, Y - Lever
- D.
  
  X - Wedge, Y - Wheel and axle
Correct Answer
A. X - Inclined plane, Y - Pulley

Explanation
The diagram shows two uses of simple machines. The first use is represented by an inclined plane, which is denoted by X. The second use is represented by a pulley, which is denoted by Y.

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5.

Fixing a screw into a wooden plank using a screw driver shows the use of a simple machine called
- A.
  
  Wheel and axle
- B.
  
  Wedge
- C.
  
  Lever
- D.
  
  Gear
Correct Answer
A. Wheel and axle

Explanation
When fixing a screw into a wooden plank using a screwdriver, the screwdriver acts as the wheel and axle. The handle of the screwdriver acts as the wheel, providing a larger radius for applying force, while the tip of the screwdriver acts as the axle, allowing the rotation to be transferred to the screw. This simple machine allows for the efficient and effective insertion of the screw into the wooden plank.

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6.

What is a machine?
- A.
  
  Any instrument invented by humans
- B.
  
  Any instrument that uses a motor to function
- C.
  
  Any instrument that helps us to do work easily
- D.
  
  Any instrument that helps us move from a place to another place
Correct Answer
C. Any instrument that helps us to do work easily

Explanation
The correct answer is "Any instrument that helps us to do work easily." This answer accurately defines a machine as an instrument that assists in performing tasks with less effort or more efficiency. Machines are designed to simplify and expedite various types of work, making them an essential tool in many industries and everyday life.

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9
1
7.

Diagram below shows a crane lifting an object. The crane shown in the diagram above uses
- A.
  
  Fixed and movable pulleys
- B.
  
  A wheel and axle
- C.
  
  A movable pulley
- D.
  
  A fixed pulley
Correct Answer
A. Fixed and movable pulleys

Explanation
The diagram shows a crane lifting an object, which requires a system of pulleys. The crane has both fixed and movable pulleys, as indicated by the presence of multiple ropes and wheels. Fixed pulleys are attached to a stationary point, while movable pulleys are attached to the object being lifted. This combination of fixed and movable pulleys allows for increased mechanical advantage, making it easier to lift heavy objects. Therefore, the correct answer is fixed and movable pulleys.

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8
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8.

A pair of scissor is a complex machine because it uses more than one simple machine to work. What are the simple machines used? I Gear II Inclined plane III Lever IV Wedge
- A.
  
  I and III
- B.
  
  I and IV
- C.
  
  II and IV
- D.
  
  III and IV
Correct Answer
D. III and IV

Explanation
A pair of scissors is considered a complex machine because it utilizes more than one simple machine to function. The simple machines used in scissors are a lever (III) and a wedge (IV). The lever allows for the opening and closing motion of the scissors, while the wedge is responsible for cutting through materials. Therefore, the correct answer is III and IV.

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8
1
9.

Which of the following shows the use of a lever?
- A.
- B.
- C.
- D.
Correct Answer
C.

Explanation
The use of a lever can be seen in option A, where a person is using a seesaw. A seesaw is a simple machine that consists of a lever with a fulcrum in the middle. When one person pushes down on one end, the other end rises up, demonstrating the principle of leverage.

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10.

Which of the following objects have the application of screw and gear?
- A.
  
  Paper cutter
- B.
  
  Scissors
- C.
  
  Watch
- D.
  
  Wheelbarrow
Correct Answer
C. Watch

Explanation
The application of screws and gears can be found in a watch. Watches often have gears that work together to accurately measure time, and screws are commonly used to hold the various components of the watch together. The other objects listed, such as a paper cutter, scissors, and wheelbarrow, do not typically involve the use of screws and gears in their functioning.

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7
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Current Version
Sep 22, 2023

Quiz Edited by
ProProfs Editorial Team
Dec 02, 2012

Quiz Created by
Angsanaling

Simple Machines And Complex Machines

Which of the following is not true?

Diagram below shows a tool. What are the simple machines found in the tool?

Diagram below shows the uses of simple machines. What are the simple machines found in the diagram? I Screw II Pulley III Inclined plane IV Wheel and axle

Diagram below shows two uses of simple machines. What are X and Y?

Fixing a screw into a wooden plank using a screw driver shows the use of a simple machine called

What is a machine?

Diagram below shows a crane lifting an object. The crane shown in the diagram above uses

A pair of scissor is a complex machine because it uses more than one simple machine to work. What are the simple machines used? I Gear II Inclined plane III Lever IV Wedge

Which of the following shows the use of a lever?

Which of the following objects have the application of screw and gear?