Calculating Ma

You apply a force of 18 N on to the end of a lever to open a paint can lid. The

resistance of the lid is 9 N. Calculate the MA.

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.

A worker uses a board that is 4 m long to pry up a boulder. A small rock is used for

a fulcrum and is placed 0.5 m from the resistance end of the lever. Calculate the MA of the board.

Tags

NGSS.MS-PS2-2

The wheel of a small dirt bike has a radius of 30cm. The axle has a radius of 20cm. What is the mechanical advantage of the wheel and axle?

You are using a ramp to move a heavy box into a moving truck. If the length of the ramp is 4 m and the height into the truck is 1m, what is the mechanical advantage of the ramp?

Tags

NGSS.MS-PS2-2

Calculate the mechanical advantage if 500N force is needed to overcome the load of 1000N.

The mechanical advantage of a steering wheel is 15. If the radius of the steering column (axle) is 5cm, what is the radius of the steering wheel?

The closer the threads the less force needed but require more turns.

• MA of Lever

• MA of Screw

• MA of Wedge

• MA of Pulley

The larger the advantage is the easier it will be to lift the weight..

• MA of Lever

• MA of Screw

• MA of Wedge

• MA of Pulley

The sharper the tip and the more gentle the incline of its sides, the more force it will deliver.

• MA of Lever

• MA of Screw

• MA of Wedge

• MA of Pulley