How can you make a lever?
In this activity. You will lift a hardcover book with a lever made from a marker and ruler.
You need:
-marker
-hardcover book
-tape
-ruler
What to do?
1/Tape a marker to the table. Place the ruler across the marker.
2/place a book on one end of the ruler, then lift the book by pushing down on the other end of the ruler.
3/position the ruler at different points to observe where the lever lifts the book highest.
4/Observe: Where was the best place to position the ruler?
My answere:
The best place to position the ruler was end of the ruler.
Please, help me
I want to teach a little sister.
If the book is heavy and you want maximum up force on the book then you want your hand far from the roller and the book close to the roller.
HOWEVER
if you want to move the book the maximum distance up, place the roller far from the book and close to your hand. That exerts the least up force on the book but moves it the maximum distance up.
Certainly! Here's a step-by-step explanation on how to make a lever for educational purposes, so you can teach your little sister:
Materials needed:
1. Marker
2. Hardcover book
3. Tape
4. Ruler
Instructions:
1. Start by taping the marker to a table or any sturdy surface. Make sure it is secure and won't move easily.
2. Take the ruler and place it across the marker, positioning it perpendicular to the marker. The ruler should be able to move freely without any obstructions.
3. Now, place the hardcover book on one end of the ruler. The other end of the ruler should extend over the edge of the table.
4. To lift the book using the lever, push down on the end of the ruler that is extending beyond the table. Apply some force to see the lever in action.
5. Experiment with different positions of the ruler on the marker to find the best place that lifts the book the highest. Move the ruler back and forth along the marker and observe the change in lifting height.
6. Finally, ask your little sister to observe and analyze the experiment with you. Together, discuss where the lever lifts the book the highest and understand the concept of the lever's mechanical advantage.
Important points to highlight when explaining the concept of the lever:
- A lever is a simple machine that consists of a rigid bar or plank that can rotate around a fixed point called a fulcrum.
- The fulcrum in this experiment is the point where the ruler rests on the marker.
- When force is applied to one end of the lever (the ruler), it creates a lifting force on the other end (lifting the book).
- By changing the position of the ruler along the marker, you can alter the mechanical advantage, meaning you can make the book easier or harder to lift depending on where the ruler is positioned.
Remember, it's important to supervise your little sister during the activity to ensure her safety and understanding. Have fun teaching!