'Mechanical Advantage Calculations' Physics Worksheet (Page 2 of 2) in pdf

'Mechanical Advantage Calculations' Physics Worksheet Page 2

Mechanical Advantage Calculations

Name:___ANSWER

KEY_______________________

1. What is the ideal mechanical advantage of a 3.5-cm screw of which the threads measure 9.5 cm in length?

5 .



IMA

7 .

5 .

2. Calculate the actual mechanical advantage of a pulley attached to a 435-N load, but requiring only 75 N to

operate.

435



AMA

8 .

3. What is the actual mechanical advantage of a lever created form a plank of wood and a paint can if a 1540-N

boulder is lifted with only 225 N of force?

1540



AMA

. 6

225

4. Calculate the mechanical advantage of a ramp that is 4.0 m long and 1.5 m high.

0 .



IMA

7 .

5 .

5. A student uses a pencil as a lever to launch a piece of trash into the trashcan. If the student positions a marker as

the fulcrum just 3 cm from where she applies effort, and 7 cm from the piece of trash, what is the mechanical

advantage the lever gives?



IMA

4 .

6. A young man works at the local gym. To block the intense afternoon sun, he uses a pulley to lower a 490-N

screen over the windows. If he uses only 65 N of force to operate the pulley, what is the mechanical advantage

of the pulley?

490



AMA

5 .

'Mechanical Advantage Calculations' Physics Worksheet Page 2