P2.3.5 - Simple Machines Flashcards
1
Q
What is a lever?
A
A force multiplier which transmits forces by rotating about a pivot
2
Q
What is effort?
A
The force you exert on a lever
3
Q
What is load?
A
The force that the lever exerts on the load
4
Q
What is mechanical advantage?
A
The ratio of load to effort
5
Q
How do you calculate mechanical advantage?
A
Load / effort
6
Q
What does the ratio of the diameters of cogs tell you?
A
The ratio of the effort to the load for cogs
7
Q
If a dog gets bigger, what changes?
A
It exerts a bigger force but becomes slower
8
Q
What is using an inclined plane?
A
Using a ramp to pull an object up a slope
