Mechanical Systems: Learn about Levers and Pulleys in Design and Technology

Question 1

Which of these is NOT a simple machine that helps us move things?

Accepted Answer

Computer

Answer

Lever

Answer

Pulley

Answer

Wheel and axle

Question 2

What is a simple machine used for?

Accepted Answer

Making work easier

Answer

Making things

Answer

Having many parts

Answer

Using electricity

Question 3

Which of these is NOT a simple machine that uses movement to make work easier?

Accepted Answer

Hammer

Answer

Lever

Answer

Pulley

Answer

Gear

Question 4

Which of these is NOT a tool that helps us move things more easily?

Accepted Answer

A TV

Answer

A lever

Answer

A pulley

Question 5

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

Accepted Answer

A pulley

Answer

A seesaw

Answer

A pair of scissors

Answer

A nutcracker

Question 6

Which of these is NOT a type of gear?

Accepted Answer

Pulley

Answer

Spur gear

Answer

Bevel gear

Answer

Worm gear

Question 7

Which of these is not a force?

Accepted Answer

Happiness

Answer

Friction

Answer

Gravity

Answer

Magnetism

Question 8

Which of these is NOT a simple machine used to make movement?

Accepted Answer

Hammer

Answer

Lever

Answer

Pulley

Answer

Screw

Question 9

Which of these is NOT a tool you can use to make a moving toy?

Accepted Answer

Magic wand

Answer

Lever

Answer

Pulley

Answer

Wheel and axle

Question 10

Which of these is not a type of gear?

Accepted Answer

Pulley

Answer

Spur gear

Answer

Bevel gear

Answer

Worm gear

Question 11

Which type of gear has teeth on the inside?

Accepted Answer

Internal gear

Answer

Spur gear

Answer

Bevel gear

Answer

Worm gear

Question 12

Which simple machine can change the direction of a force, making it go up and down or side to side?

Accepted Answer

Pulley

Answer

Screw

Answer

Lever

Answer

Wedge

Question 13

Which of these is not a type of gear?

Accepted Answer

Pulley

Answer

Spur gear

Answer

Bevel gear

Answer

Worm gear

Question 14

In a seesaw, what is the point where the plank rests on the frame called?

Accepted Answer

Fulcrum

Answer

Handle

Answer

Weight

Answer

Base

Question 15

Which of these is NOT a type of lever?

Accepted Answer

Wheelbarrow

Answer

First-class lever

Answer

Second-class lever

Answer

Third-class lever

Question 16

When using a lever, where should you apply force to move the load?

Accepted Answer

Far from the fulcrum

Answer

Close to the fulcrum

Answer

Close to the load

Answer

Far from the load

Question 17

Which type of gear has teeth on both its inner and outer surfaces?

Accepted Answer

Internal gear

Answer

Spur gear

Answer

Helical gear

Answer

Bevel gear

Question 18

Which of these is not a type of gear?

Accepted Answer

Cam

Answer

Spur gear

Answer

Bevel gear

Answer

Worm gear

Question 19

Which of these is NOT a force that can make an object move?

Accepted Answer

Heat

Answer

Gravity

Answer

Friction

Answer

Magnetic force

Question 20

Which of these provides an electrical current?

Accepted Answer

Battery

Answer

Lever

Answer

Pulley

Question 21

What is the main purpose of a mechanism?

Accepted Answer

To transmit or change force and movement

Answer

To make work easier

Answer

To use gears

Answer

To need electricity

Question 22

Which type of gear has teeth on the inside, allowing it to mesh with gears on the outside?

Accepted Answer

Internal Gear

Answer

Spur Gear

Answer

Bevel Gear

Answer

Worm Gear

Question 23

What is the definition of a lever?

Accepted Answer

A rigid object that moves around a fixed point

Answer

A tool that helps you move things

Answer

A part of a machine that makes it work

Answer

A stick that you use to lift heavy objects

Question 24

Which of these is NOT a simple machine that you might find on a playground?

Accepted Answer

Gear

Answer

Lever

Answer

Pulley

Question 25

Mechanisms are systems of parts that work together to perform a specific action. What is a key feature that makes a system a mechanism?

Accepted Answer

The parts are connected and work together to achieve a specific action.

Answer

All parts move separately.

Answer

The system can do many things at once.

Question 26

What makes things move in a machine?

Accepted Answer

Pushing or pulling them

Answer

Putting something inside them to spin

Answer

Making them smooth

Answer

Giving them a special shape

Question 27

In a mechanical system, what is the main purpose of the connected parts?

Accepted Answer

To make things move

Answer

To store energy

Answer

To make things stronger

Answer

To change direction

Question 28

What is the key feature that distinguishes a 'mechanism' from a simple collection of parts?

Accepted Answer

All the parts work together to perform a specific action.

Answer

It is made of metal or other hard materials.

Answer

It has moving parts.

Answer

It needs an external energy source to operate.

Question 29

Which of these is NOT a simple machine?

Accepted Answer

Magnet

Answer

Lever

Answer

Pulley

Answer

Wedge

Question 30

Which of these is not a type of gear?

Accepted Answer

Cam

Answer

Spur gear

Answer

Bevel gear

Answer

Worm gear

Question 31

Which of these is not a type of lever?

Accepted Answer

Fourth-class lever

Answer

First-class lever

Answer

Second-class lever

Answer

Third-class lever

Question 32

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

Accepted Answer

Gear

Answer

Fixed pulley

Answer

Movable pulley

Answer

Combination pulley

Question 33

When using a lever to lift something, which part stays still and doesn't move?

Accepted Answer

The fixed point

Answer

The part you push or pull

Answer

The part you lift

Answer

The part that moves

Question 34

Which of these is not a type of gear?

Accepted Answer

Pulley

Answer

Spur gear

Answer

Bevel gear

Answer

Worm gear

Question 35

Which of these is NOT a type of lever?

Accepted Answer

A ramp that you roll a ball down

Answer

A seesaw where you sit in the middle

Answer

A wheelbarrow where you lift the handles

Answer

A pair of tongs where you squeeze the handles

Question 36

Which device uses interlocking teeth to change the direction of movement?

Accepted Answer

Gear system

Answer

Belt drive

Answer

Pulley system

Question 37

Which of these jobs is NOT related to mechanical engineering?

Accepted Answer

Teaching

Answer

Designing cars

Answer

Designing airplanes

Answer

Making machines for factories

Question 38

Who is credited with inventing the wheel, a fundamental mechanical system?

Accepted Answer

Ancient Mesopotamians

Answer

Leonardo da Vinci

Answer

Albert Einstein

Question 39

Which of these is NOT a mechanical system?

Accepted Answer

Computers

Answer

Gears

Answer

Pulleys

Answer

Levers

Question 40

Which part of the lever is the fixed point around which it moves?

Accepted Answer

Fulcrum

Answer

Effort

Answer

Load

Question 41

What type of simple machine changes the direction of a force?

Accepted Answer

Pulley

Answer

Lever

Answer

Gear

Question 42

In a simple machine, the force you apply is called the:

Accepted Answer

Input force

Answer

Output force

Answer

Mechanical advantage

Question 43

A machine that makes work easier by changing the direction or size of a force is called a:

Accepted Answer

Simple machine

Answer

Complex machine

Answer

Lever

Question 44

What is the purpose of a gear in a simple machine?

Accepted Answer

To change the speed or direction of motion

Answer

To increase the force applied

Answer

To reduce the force applied

Question 45

How do pulleys make everyday tasks easier?

Accepted Answer

Lifting heavy objects, like boxes or furniture

Accepted Answer

Changing the direction we pull or lift something

Answer

Making things move faster

Answer

Creating spinning movements, like when you ride a bike

Question 46

Which material would be the best choice for making a lever that needs to be strong and durable?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Paper

Question 47

What is the point on a lever where it pivots?

Accepted Answer

The fulcrum

Answer

The load

Answer

The effort

Answer

The support

Question 48

Which of these is NOT a factor that affects the movement of a lever?

Accepted Answer

The temperature of the lever

Answer

The length of the lever

Answer

The position of the fulcrum

Answer

The amount of force applied

Question 49

What is the part of a lever that it rotates on called?

Accepted Answer

The fulcrum

Answer

The force

Answer

The load

Question 50

What's the difference between a simple machine and a complex machine?

Accepted Answer

Simple machines have only one moving part, while complex machines have multiple moving parts.

Answer

Simple machines change the direction of a force, while complex machines change the amount of force.

Answer

Simple machines are powered by people, while complex machines are powered by something else.

Answer

Simple machines are used for everyday tasks, while complex machines are used for industrial purposes.

Question 51

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

Accepted Answer

How the system looks

Answer

The purpose of the system

Answer

The materials used

Answer

The cost of the system

Question 52

What's the difference between an effort force and a load force?

Accepted Answer

Effort force is applied to the lever, and load force is applied by the lever

Answer

Effort force is always greater than load force

Answer

Load force is always greater than effort force

Question 53

What is the fulcrum in a lever?

Accepted Answer

It's the part of the lever that doesn't move

Answer

It's the point where the effort force is applied

Answer

It's the point where the load force is applied

Question 54

What is a compound machine?

Accepted Answer

It's a machine made up of two or more simple machines

Answer

It's a machine that can only do one thing

Answer

It's a machine that makes things move faster

Question 55

Which of these is an example of a first-class lever?

Accepted Answer

See-saw

Answer

Scissors

Answer

Wheelbarrow

Answer

Bottle opener

Question 56

What is the difference between a simple and a compound machine?

Accepted Answer

Compound machines combine simple machines

Answer

Simple machines have one moving part, while compound machines have many moving parts

Answer

Simple machines are powered by people, while compound machines are powered by motors

Answer

There is no difference between simple and compound machines

Question 57

What is the part of a lever that it pivots on called?

Accepted Answer

The fulcrum

Answer

The load

Answer

The effort

Answer

The balance point

Question 58

How can levers and pulleys help us use less energy and protect the environment?

Accepted Answer

They make it easier to lift or move things, which uses less energy.

Answer

They help us create machines that use renewable energy sources.

Answer

They can replace electrical systems in homes and businesses.

Question 59

What part of a lever remains stationary when the lever moves?

Accepted Answer

Fulcrum

Answer

Load

Answer

Effort

Answer

Arm

Question 60

What is the main purpose of using a pulley?

Accepted Answer

To change the direction of a force

Answer

To decrease force

Answer

To make objects float

Answer

To increase force

Question 61

Which kind of lever is a seesaw?

Accepted Answer

First-class lever

Answer

Third-class lever

Answer

Second-class lever

Answer

Fourth-class lever

Question 62

What do we call the distance from the fulcrum to the point where the effort is applied on a lever?

Accepted Answer

Effort arm

Answer

Fulcrum arm

Answer

Load arm

Answer

Mechanical advantage

Question 63

Which of these factors does NOT affect how much a lever amplifies force?

Accepted Answer

Weight of the lever

Answer

Length of the load arm

Answer

Length of the effort arm

Answer

Position of the fulcrum

Question 64

What is the main function of a gear?

Accepted Answer

To transmit motion and change speed

Answer

To create movement

Answer

To change the direction of force

Answer

To increase force