Oh, what a lovely question! A stroller is like a happy little family of simple machines working together. You have wheels and axles for smooth movement, levers for easy steering, and maybe even some gears for folding it up neatly. Each part plays its own special role, just like how every color on our palette adds to the beauty of a painting.
No, not all machines require the use of simple machines. Some machines rely on more complex mechanisms or technologies to function efficiently. Simple machines are often used to make work easier by multiplying or redirecting force, but they are not a requirement for all machines.
The two types of mechanical devices are simple machines and complex machines. Simple machines include tools like levers, pulleys, and screws, while complex machines are made up of multiple simple machines working together, such as engines or robots.
A toy car can be considered a compound machine as it is made up of multiple simple machines working together. Some simple machines that can be found in a toy car include wheels and axles for movement, and gears to transfer energy.
Chopsticks are considered a type of lever due to their design and function of applying force to pick up food by creating a pivot point.
A pencil can be considered a compound machine, as it is made up of multiple simple machines working together. These simple machines include a wedge (the pencil tip for writing), a lever (the pencil body for holding and applying force), and possibly a wheel and axle (if the pencil has an eraser at one end). The combination of these simple machines allows the pencil to perform its function efficiently.
a screw
Lever.
all of them
There are four simple machines used to make the compound machine known as the lawn mower. These simple machines are the wheel and axle, the screw, the lever, and the wedge.
A lever.
wheel and axle
pulley and rope
lever and pulley
Rims and tires
A compound machine.
At least 300
wheel and axle