Simple Machines 1

Front

What are the units of force?

Back

Newtons and Pounds

Front

Which of the following simple machines likely has the least efficiency?

Wheel and Axle

,

Pulley

,

Wedge

,

Screw

Back

Screw

Front

Which class of lever has the fulcrum in the middle (between Fe and Fr)?

Back

1

Front

In a wheel and axle, how do we know which is the wheel and which is the axle?

Back

The wheel has the larger diameter/radius

Front

IMA = L/H: Which simple machine(s) does this equation apply for? Options: Lever, Wheel and Axle, Inclined Plane, Inclined Plane and Wedge

Back

Inclined Plane and Wedge

Front

What is the IMA of this block and tackle?

Back

4

Front

How many movable pulleys are in this block and tackle?

Back

2

Front

What is the IMA of this wheel and axle?

Back

5

Front

What is the ideal effort force for this wheel and axle?

Back

10 N

Front

Brain Break!

Back

This is the correct answer.