WorksheetsComplex Machines
Total questions: 25
Worksheet time: 25mins
What do you call a machine made up of two or more simple machines?
complicated machine
complex machine
constructed machine
Which statement correctly explains a complex machine?
A complex machine is made up of one or more simple machines
A complex machine is a tool that consists of a combination of more than one simple machine
The picture shows _________
Simple machine
Complex machine
An axe is a complex machines. It consists _____________
wheel and axle
pulley
inclined plane
wedge
Combining two or more simple machines together creates a ___.
simple machine
lever
complex machine
wedge
type of machine made up of two or more simple machines
(a)
Which of the following simple machines can be found in this complex machine?
Screw and wedge
pulley and wedge
Screw and inclined plane
A wheelbarrow is an example of a complex machine. Which simple machine is NOT found in this object?
lever
wedge
wheel and axle
A fishing pole is an example of a complex machine. What simple machines are used to make up this complex machine?
lever, wheel and axle, pulley
wheel and axle, inclined plane, pulley
wheel and axle, pulley, inclined plane
What simple machines are used to make up this complex machine? Tick three ( / ) correct answers.
wheel and axle
screw
gear
pulley
Which one of these is not complex machine?
Complex machines can do more difficult jobs than simple machines alone.
True
False
What do you call a machine made up of two or more simple machines?
complicated machine
compound machine
comprehensive machine
constructed machine
What is a complex machine?
A machine made up of two or more simple machines
A machine that operates without human intervention
A machine that is used in complex calculations
A machine that is powered by electricity
Which of the following is an example of a complex machine?
A pair of scissors
A bicycle
A hammer
A pulley
How do complex machines benefit from combining simple machines?
They require less maintenance
They can perform more complex tasks
They are easier to build
They consume less energy
Which simple machines are combined in a wheelbarrow?
Lever and wheel and axle
Inclined plane and screw
Pulley and wedge
Lever and pulley
What role does a gear play in a complex machine?
It increases speed
It changes the direction of force
It reduces friction
It stores energy
In a bicycle, which part acts as a lever?
The pedals
The chain
The seat
The handlebars
What is the primary function of a pulley in a complex machine?
To lift heavy loads
To increase speed
To reduce noise
To store energy
Which of the following is NOT a characteristic of complex machines?
They are made of multiple simple machines
They can perform multiple functions
They are always powered by electricity
They can be manually operated
How does an inclined plane contribute to a complex machine?
It allows for easier lifting of objects
It increases the speed of movement
It reduces the need for lubrication
It stores potential energy
What is the advantage of using a complex machine over a simple machine?
It can perform tasks more efficiently
It is cheaper to produce
It requires less skill to operate
It is more environmentally friendly
Which of the following is a real-world application of a complex machine?
A crane lifting heavy materials
A pencil sharpener
A door hinge
A light bulb
What is the main difference between a simple and a complex machine?
Complex machines are made of multiple simple machines
Simple machines are more efficient
Complex machines are smaller
Simple machines are powered by electricity
