Calculate Mechanical Advantage in Simple Machines

Front

Which of the following cannot be done by a simple machine?

Back

Allow less work to be done

Front

The amount by which a machine multiplies an effort force is called the

Back

mechanical advantage

Front

How does a ramp make lifting a heavy object easier?

Back

Less force is needed to move the object over a longer distance

Front

If you exert 20 N of force on a screwdriver and the screwdriver exerts 80 N on a paint can lid, what is the screwdriver’s mechanical advantage?

Back

4

Front

What is the mechanical advantage of this pulley system?

Back

4

Front

Find the MA of this inclined plane.

Back

1.3

Front

The radius of the wheel is 30 cm and the radius of the axle is 2.5 cm. What is the MA?

Back

12

Front

You exert a force of 543 N downward as you push on the pedals. The resulting force of 21 N pushes the bicycle forward. What is the MA of the bicycle?

Back

0.04

Front

You apply a force of 500 N to a tree branch to lift the back of a truck weighing 2400 N. What is the mechanical advantage (MA) of the branch-lever?

Back

4.8

Front

How much easier is it to lift an elephant with 5 pulleys if the elephant weighs 19620 N?

Back

5x