Archivo de la etiqueta: wedges

Mechanisms: inclined planes, the screw and wedges


We are going to watch these videos about the inclined plane and the screw.

After watching these videos you have to answer these questions:

Inclined Planes

1. Energy is the ability to do WHAT?
2. Work = ×

3. Why did he slice the barrel into four barrels?

4. Lifting the barrel exerts the same amount of energy as using the plank. So why is the plank a better idea? Why is it considered a simple machine?

5. The pyramids were built using the same principle of standing on an escalator. Explain why.

The Screw
1.Why is the mountain road considered a simple machine?

2. Why can’t cars go straight up the side of the mountain?
3. What type of inclined plane is the road that goes up a mountain or  a screw?
4.What does a screw help you do?

Now we are going to review the inclined plane filling the gaps in activity 21 from this topic made by Carles Egusquiza Bueno.

http://www.xtec.cat/cirel/pla_le/nile/carles_egusquiza/index/index1.htm

Finally, you have to answer the activity 28 from this topic.