How can we use pulleys?
The parts of a pulley work together to help us get flags up to the top of a flagpole.
📖 Read Together
What are Simple Machines?
People sometimes use ramps
to move things that are hard to get up stairs.
A pulley makes it easier to lift heavy objects.
It also helps move things to high places.
Example:
An oar is a lever that helps you move a boat.
🔁 Pulley
is a rope that moves over a wheel.
❓ Essential Question
What are some kinds of simple machines?
🧠 Learn
Sometimes things are hard to move. You might need help moving them.
🛝 Ramp
is a slanted surface.
Lever is another kind of simple machine.
A lever makes it easier to move something.
🏡
Using Simple Machines in the Yard
FACT:
Pulleys can be up high or down low.
⚖️ Lever
is a bar that balances on a point. It moves like a seesaw.
Example:
A ramp helps people in wheelchairs get onto buses.
simple machine
is a tool that can make it easier to move things. Simple machines help people do work.
A ramp is also a simple machine.
You can use it to move things up or down.
📸 Read a Photo
What are these rakes helping the children do?