#6. Simple Machines Ramps & Levers: Outcome B3 - Andrew Wilson | Biblioteka

1

Which part is found in the middle of a first class lever?

a.) resistance

b.) fulcrum

c.) effort

d.) load

1

Which of the following is a second class lever?

a.) axe

b.) baseball bat

c.) teeter-totter

d.) wheelbarrow

1

A wheelchair ramp is an example of:

a.) an inclined plane

b.) a lever

1

A bottle opener is an example of:

a.) a first class lever

b.) a second class lever

c.) a third class lever

1

Which kind of machine is a roller coaster?

a.) inclined plane

b.) screw

c.) wedge

d.) pulley

1

An axe with a longer handle is more efficient than an axe with a smaller handle because less effort is required to move an object with a longer lever:

Tačno

Netačno

1

What type of lever do the biceps make when they contract?

a.) first class

b.) second class

c.) third class

d.) fourth class

1

Which of the following pairs of levers tend to be force multipliers?

a.) first and second class levers

b.) first and third class levers

c.) second and third class levers

d.) fourth and fifth class levers

1

Which list includes only simple machines?

a.) two-stroke engine

b.) pulley, Newton scale

c.) screw, bandage, circular saw

d.) inclined plane, wheel and axle, lever

1

Which of the following machines involves an inclined plane?

a.) hammer

b.) wedge

c.) tackle

d.) axle

1

A wood screw is a:

a.) coiled lever

b.) coiled pulley

c.) coiled inclined plane

d.) straight inclined plane

1

The point at which a lever is supported and about which it pivots is called the:

a.) fulcrum

b.) load point

c.) effort point

d.) balance point

1

Your lower jaw is an example of what type of simple machine?

a.) lever

b.) wedge

c.) inclined plane

d.) wheel and axle