Physics
(a) State the relationship between mechanical advantage, velocity ratio and efficiency.
(b) Name the term that will not change for a machine of a given design.
Related Questions
Define the term efficiency of a machine. Give two reasons for a machine not to be 100% efficient?
When does a machine act as
(a) a force multiplier
(b) a speed multiplier?
Can a machine act as a force multiplier and speed multiplier simultaneously?
State one reason why mechanical advantage is less than the velocity ratio for an actual machine.
What is a lever? State its principle.