Want to see correct answers?
Login or join for free!

Question Group Info

This question group is public and is used in 13 tests.

Author: kieke
No. Questions: 10
Created: Jul 8, 2014
Last Modified: 10 years ago

2014 HT: Simple Machines Concepts

View group questions.

To print this group, add it to a test.

WORD BANK

ramp

$" "$ wedge

$" "$ screw

$" "$ tension

$" "$ efficiency

$" "$ output force

$" "$ lever

$" "$ fulcrum

$" "$ gear

$" "$ machine

$" "$ output arm

$" "$ wheel and axle

$" "$ gear ratio

$" "$ input force

$" "$ ideal mechanical advantage

$" "$ block and tackle

$" "$ mechanical advantage

Grade 11 Simple Machines

A.

Real-world machines generate less output force than ideal machines because the efficiency is usually less than 100%.

Grade 11 Simple Machines

B.

The gear and rear tire of a multiple-speed bicycle is an example of a wheel and axle .

Grade 11 Simple Machines

C.

The ratio of the radius of a wheel to the radius of its axle is the ideal mechanical advantage of that wheel-and-axle system.

Grade 11 Simple Machines

D.

The switchbacks of a road going up the side of a mountain are an example of a/an ramp .

Grade 11 Simple Machines

E.

A wheel with 42 teeth was turned, causing a wheel with 14 teeth to turn. The system has a/an gear ratio of three.

Grade 11 Simple Machines

F.

When you use a crowbar to remove a nail from a piece of wood, the distance from the crowbar’s pivot point to the nail is the output arm .

Grade 11 Simple Machines

G.

The ratio of the output force to the input force is called the mechanical advantage .

Grade 11 Simple Machines

H.

When mules turn the wheel of a wheel and axle system, the axle delivers the output force .

Grade 11 Simple Machines

I.

When a spike is pounded into a railroad tie using a sledgehammer, the sledgehammer provides the input force .

Grade 11 Simple Machines

J.

When you turn a/an screw , it converts the rotational motion into translational motion into the material.