HSPS Simple Machines Test

Front

Where should the fulcrum be located in this lever to get the greatest mechanical advantage? Options: at position II, because the effort arm and the load arm should have equal lengths; at position IV, because the effort should be applied as close to the fulcrum as possible; at position I, because the length of the effort arm should be greater than the length of the load arm; at position III, because the length of the load arm should be greater than the length of the effort arm.

Back

at position I, because the length of the effort arm should be greater than the length of the load arm

Front

A 62 kg box is lifted 12 meters off the ground. How much work was done?

Back

744.0 J

Front

Calculate the amount of work done if you use a 100N force to push a 50kg box 5m across the kitchen floor.

Back

5000 J

Front

Which of the following is work NOT being done? Walking, Shooting a bow and arrow, Writing an essay, A magnet picking up a paperclip

Back

Writing an essay

Front

A 16 N force is applied to an object and 96 J of work is done. How far was the object moved?

Back

6 meters

Front

If Farmer Jones had to lift a bale of cotton to a height of fifteen feet, which would be the MOST practical solution among the following options: lever, screw, inclined plane, block and tackle (pulley)?

Back

block and tackle (pulley)

Front

We can classify both the shovel and the garden trowel as compound machines. This is because each garden tool contains two simple machines:

Back

a lever and a wedge

Front

What is the mechanical advantage of the block and tackle used to lift the bale of cotton?

Back

2

Front

If you closely examine a wood screw, you will see that the threads on it form a long ______ wrapped around a cylinder.

Back

inclined plane

Front

Movers want to raise a heavy crate onto a platform. The platform is 3 meters (m) above the ground. The movers do not have enough force to push the crate up the ramp shown in the diagram. Which solution will best allow the movers to achieve their goal? Options: Change the width of the ramp from 4 meters to 3 meters. Change the length of the ramp from 4 meters to 5 meters. Change the height of the ramp from 3 meters to 4 meters. Change the length of the ramp from 3 meters to 2 meters.

Back

Change the length of the ramp from 4 meters to 5 meters.