Free Printable Simple Machines Calculations

Worksheets

Simple Machines Calculations

Total questions: 11

Worksheet time: 17mins

Name

Class

Date

You apply a force on a crowbar to open a stuck door. The effort length of the crowbar is 26 cm long and the resistance length is 4 cm. Find the MA of the crowbar

0.15

6.5

0.5

Three of your friends are all sitting on one end of a seesaw. The combined weight is 275 N. The length from the fulcrum to your friends is 2.5 m. The rest of the seesaw (from the fulcrum to you) is 4.5 m. What effort force is needed to lift your friends?

0.006

500

152.8

0.002

This machine has a flat slanting surface. We use it to push objects to a higher place more easily.

Wedge

Wheel and axle

Inclined plane

Pulley

What is the gear ration of this gear train?

$\frac{2}{25}$

$\frac{25}{2}$

$\frac{5}{1}$

$\frac{1}{5}$

Driver gear A rotates at 1500 rpm. Calculate the angular velocity of gear B.

300 rpm

2500 rpm

3750 rpm

600 rpm

Ideally, how much force would be required to lift the 125 Newton load?

62.5 N

25 N

31.25 N

500 N

What is the ideal mechanical advantage of this inclined plane?

3.35:1

3.2:1

0.3125:1

2:1

How much input torque would be required at gear A to generate 350 ft-lbs of output torque at gear D?

70 ft-lb

0.036 ft-lb

28 ft-lb

52 ft-lb

Ideally, how much effort force is required to lift the load?

40 lb

80 lb

20 lb

160 lb

10.

Sprocket 1 has 20 teeth and rotates at 2000 rpm. Sprocket 2 has 50 teeth. Calculate the angular velocity of sprocket 2.

2500 rpm

1200 rpm

5000 rpm

800 rpm

11.

A wrench is being used to tighten a 1/2 20 NC screw. If the person places their hand 14 inches from the screw, what is the ideal mechanical advantage?

2123.6

1759.3

879.6

712.3

Reset

Simple Machines Calculations

Total questions: 11

Worksheet time: 17mins

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