Mechanism Design for Year 6: Interactive Quizzes and Learning

Question 1

Which of these is NOT a type of mechanical mechanism?

Accepted Answer

Electrical circuit

Answer

Lever

Answer

Pulley

Answer

Gear

Question 2

What is the main purpose of a gear?

Accepted Answer

To increase or decrease speed

Answer

To change the direction of rotation

Answer

To store energy

Answer

To apply force over a distance

Question 3

What is the key difference between a lever and a pulley?

Accepted Answer

Levers apply force over a distance, while pulleys change the direction of force

Answer

Levers are always used to lift heavy objects, while pulleys are used to move objects horizontally

Answer

Levers are more efficient than pulleys

Answer

Pulleys are more durable than levers

Question 4

What is the main advantage of using a compound mechanism?

Accepted Answer

Increased efficiency

Answer

Greater precision

Answer

Reduced size

Answer

Lower cost

Question 5

Which of the following is a type of friction that occurs when two surfaces slide past each other?

Accepted Answer

Sliding friction

Answer

Rolling friction

Answer

Static friction

Answer

Fluid friction

Question 6

What is the purpose of a cam mechanism?

Accepted Answer

To convert rotary motion into linear motion

Answer

To convert linear motion into rotary motion

Answer

To change the direction of motion

Answer

To increase or decrease speed

Question 7

Which of the following materials is often used in the construction of mechanisms due to its strength and durability?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Answer

Fabric

Question 8

Which of these should you NOT think about when designing a mechanism?

Accepted Answer

How it will look

Answer

How well it will do its job

Answer

How precisely it will do its job

Answer

How long it will last

Question 9

The first step in designing a mechanism is to:

Accepted Answer

Identify the task

Answer

Draw a design

Answer

Build a prototype

Answer

Test and evaluate

Question 10

Which type of mechanism uses a lever to lift heavy objects?

Accepted Answer

Lever

Answer

Pulley

Answer

Gear

Answer

Cam

Question 11

Bearings in a mechanism help to:

Accepted Answer

Reduce friction

Answer

Increase speed

Answer

Change direction

Answer

Store energy

Question 12

Which material is strongest and best for making gears that need to withstand high loads?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Fabric

Question 13

What is the function of a cam in a mechanism?

Accepted Answer

To convert rotary motion to linear motion

Answer

To increase torque

Answer

To reduce speed

Answer

To store energy

Question 14

When designing a mechanism, which of the following is NOT important to consider?

Accepted Answer

Colour

Answer

Efficiency

Answer

Cost

Answer

Durability

Question 15

Why do we test and evaluate a mechanism?

Accepted Answer

To find ways to make it better

Answer

To show that it works

Answer

To reduce costs

Answer

To increase speed

Question 16

Which type of motion is produced by a gear mechanism?

Accepted Answer

Rotary

Answer

Linear

Answer

Reciprocating

Answer

Oscillating

Question 17

When designing a toy car, why is durability more important than precision?

Accepted Answer

Durability ensures the toy car can withstand rough play.

Answer

Precision is only needed for delicate mechanisms.

Answer

Durability makes the toy car heavier.

Answer

Precision is not necessary for toys.

Question 18

A lever is a simple tool that uses a:

Accepted Answer

Pivot point to move an object

Answer

Wheel and axle to lift heavy objects

Answer

Pulley to change the direction of force

Answer

Screw to hold objects together

Question 19

Which type of gears have teeth that fit together directly?

Accepted Answer

Spur gears

Answer

Bevel gears

Answer

Worm gears

Answer

Rack and pinion gears

Question 20

A cam is a part that changes:

Accepted Answer

Rotary motion into linear motion

Answer

Linear motion into rotary motion

Answer

Force into torque

Answer

Torque into force

Question 21

Which tool measures the force applied to a mechanism?

Accepted Answer

Dynamometer

Answer

Tachometer

Answer

Micrometer

Answer

Vernier caliper

Question 22

Which of these is NOT a type of simple machine used to lift or move objects?

Accepted Answer

Gear

Answer

Lever

Answer

Pulley

Answer

Screw

Question 23

Which material would be most suitable for making a lever that needs to be strong and durable?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 24

What is the advantage of using a lever to lift an object?

Accepted Answer

It makes it easier to lift the object with less force

Answer

It makes the object lighter

Answer

It increases the speed at which the object can be lifted

Answer

It allows the object to be lifted to a greater height

Question 25

Which of these is NOT a factor to consider when designing a mechanism?

Accepted Answer

Appearance

Answer

Efficiency

Answer

Precision

Answer

Durability

Question 26

What is the purpose of a cam in a machine?

Accepted Answer

To convert rotary motion into linear motion

Answer

To convert linear motion into rotary motion

Answer

To increase the speed of a rotating shaft

Answer

To change the direction of rotation

Question 27

Which type of gear is used to transmit motion between two shafts that are parallel to each other?

Accepted Answer

Spur gear

Answer

Bevel gear

Answer

Worm gear

Answer

Rack and pinion

Question 28

What is the difference between a positive and negative drive?

Accepted Answer

A positive drive prevents slippage, while a negative drive does not

Answer

A negative drive prevents slippage, while a positive drive does not

Answer

A positive drive is more efficient than a negative drive

Answer

A negative drive is more efficient than a positive drive

Question 29

Which specialized tool is used to cut the teeth on gears?

Accepted Answer

Gear cutter

Answer

Hacksaw

Answer

File

Answer

Drill

Question 30

What is the main purpose of using a lubricant in a machine?

Accepted Answer

To reduce friction and wear

Answer

To increase friction and resistance

Answer

To make the machine move faster

Answer

To prevent the machine from rusting

Question 31

What is the first step in designing a mechanism?

Accepted Answer

Defining the problem

Answer

Creating a prototype

Answer

Testing the mechanism

Answer

Finding materials

Question 32

Which of these materials is best for building a very precise mechanism?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 33

How do a cam and a crank differ?

Accepted Answer

A cam changes spinning motion to straight-line motion, while a crank does the opposite.

Answer

A cam rotates while a crank moves in a straight line.

Answer

A cam moves in a straight line while a crank rotates.

Answer

A cam is a type of gear, while a crank is a type of lever.

Question 34

Which of these is **not** a type of mechanism?

Accepted Answer

Engine

Answer

Lever

Answer

Pulley

Answer

Spring

Question 35

Which type of pulley system is used to lift heavy objects with the least amount of effort?

Accepted Answer

Block and tackle system

Answer

Single fixed pulley

Answer

Single movable pulley

Answer

Compound pulley system

Question 36

What is the main purpose of a spring in a mechanism?

Accepted Answer

To store energy

Answer

To reduce friction

Answer

To push objects apart

Answer

To make objects move faster

Question 37

When designing a mechanism, which of these factors should **not** be considered?

Accepted Answer

Style

Answer

Efficiency

Answer

Durability

Answer

Cost

Question 38

What is the main difference between a simple and a compound mechanism?

Accepted Answer

A simple mechanism has one moving part, while a compound mechanism has multiple moving parts.

Answer

A simple mechanism is less efficient than a compound mechanism.

Answer

A simple mechanism is more durable than a compound mechanism.

Answer

A compound mechanism is always more expensive than a simple mechanism

Question 39

What is the main role of friction in a mechanism?

Accepted Answer

To prevent slipping

Answer

To increase wear and tear

Answer

To reduce efficiency

Answer

To store energy

Question 40

Which of these is **not** a common material used to make mechanisms?

Accepted Answer

Glass

Answer

Wood

Answer

Metal

Answer

Plastic

Question 41

What is the main purpose of a prototype in the design process?

Accepted Answer

To test the design before making the final product

Answer

To attract investors

Answer

To protect the intellectual property of the design

Answer

To create a marketing model

Question 42

What is mechanical advantage?

Accepted Answer

The number of times a mechanism multiplies force

Answer

The distance over which a force is applied

Answer

The amount of work done by a machine

Answer

The efficiency of a mechanism

Question 43

Which gear type is used to transfer motion between parallel shafts?

Accepted Answer

Spur gear

Answer

Bevel gear

Answer

Worm gear

Answer

Rack and pinion

Question 44

What does a cam do in a machine?

Accepted Answer

It makes something go up and down when it turns.

Answer

It makes things less slippery.

Answer

It makes things stronger.

Question 45

To make a machine work well, what should you try to do?

Accepted Answer

Make it so there's less rubbing.

Answer

Use lots of different shapes.

Answer

Make the parts big.

Answer

Use light things to make it.

Question 46

What's the difference between a slider-crank and a four-bar linkage?

Accepted Answer

A slider-crank has a part that slides, but a four-bar linkage only has parts that turn.

Answer

A slider-crank turns things into moving straight, but a four-bar linkage does the opposite.

Answer

A slider-crank is better than a four-bar linkage.

Question 47

Which gear is used when two wheels need to turn but are facing different ways?

Accepted Answer

Bevel gear

Answer

Rack and pinion

Answer

Spur gear

Answer

Worm gear

Question 48

What's good about using a belt instead of gears to make things move?

Accepted Answer

Belts are flexible and can move things far apart.

Answer

Belts last longer than gears.

Answer

Belts work better than gears.

Question 49

What does a flywheel do in a machine?

Accepted Answer

It stores energy to make the machine run smoothly.

Answer

It makes the machine go faster.

Answer

It makes the machine easier to turn.

Question 50

What does a brake do in a machine?

Accepted Answer

It makes things stop or go slower.

Answer

It changes the way things move.

Answer

It makes things go faster.

Answer

It makes things move in the other direction.