Schließen
Machines Around Us
What is a simple machine?
What can machines do?
What is effort and load?
How do machines change the size of a force?
How do machines make things speed up?
How do machines make things change direction?
What are levers?
What do levers do?
How do you measure how much easier a machine makes a task?
What does a machine with mechanical advantage 2 indicate?
How do you calculate the mechanical advantage for levers?
These two statements can be combined into the principle levers. What is the principle of lever?
Levers are grouped into what classes of levers?
What is a first class lever?
What is a second class lever?
What is a third class lever?
What is the unit used to measure force?
Which class of levers multiplies speed?
Which class of levers multiplies force?
The End
