MA
What does MA stand for
Mechanical Advantage
Find MA if you can use a lever to lift 500 N using only 50 N.
10
What is a resistance
the load, something you are trying to move or lift
What is the MA of a single fixed pulley
1
Which simple machine is a water bottle cap?
Screw
Define MA
The amount of times a machine multiples a force
Find MA is you can use an inclined plane to lift 120 N using only 10 N.
MA=12
What is effort
The amount of force you put in
What is the MA of a single movable pulley?
2
Which simple machine is a door hinge?
lever
Which machine requires less effort:
Machine with an MA of 5
Machine with an MA of 10
Machine with an MA of 10
How much effort do you need to lift 30 N on a machine with an MA of 6?
5 n
What does it mean if a pulley is "fixed"
The pulley is attached to a ceiling or rigid support and does not move. The string moves through the pulley
What is the MA of a pulley system?
The MA is equal to the number of rope segments
Which simple machine is a round doorknob?
wheel and axle
What is the formula for finding MA for any machine?
MA=R/E
How much effort do you need to lift 600N on a machine with an MA of 60?
10N
What does it mean if a pulley is "movable"?
The pulley itself moves along the string.
How much effort is required to lift a 500 N box using a single fixed pulley?
500 N
Which simple machine is a flagpole?
pulley
What unit is used with MA?
No unit
If you can put in an effort of 15 N and the machine you are using has an MA of 2, what is the maximum resistance you can lift?
30 N
What is MA?
The amount of times a machine multiplies the effort force
How much effort is required to lift a 500 N box using a single movable pulley?
250 N
Name all 6 simple machines
lever
pulley
wedge
screw
inclined plane
wheel and axle