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#7. Simple Machines Pulleys & Wheels: Outcome B3

Last updated about 1 year ago

9 questions

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Question 1

1.

A wrench is used to turn a nut on a bolt. What is the wheel in this system?

a.) The bolt

b.) The nut

c.) The wrench

d.) The bolt, nut, and wrench

Question 2

2.

A two-pulley system allows you to:

a.) do less work with less effort

b.) do less work with more effort

c.) exert half the force needed to lift a weight

d.) exert twice the force needed to lift a weight

Question 3

3.

An example of a wheel and axle is:

a.) screw

b.) a door knob

c.) car engines

Question 4

4.

A pulley is a simple machine consisting of a grooved wheel on which a rope turns.

True

False

Question 5

5.

When discussing simple machines, what is effort?

a.) a type of simple machine

b.) the force you apply to move an object

c.) what the simple machine is lifting

d.) the point where the lever pivots

Question 6

6.

What is a real-life example of a wheel and axle:

a.) a TV remote

b.) a bicycle

c.) a shoe

d.) a phone

Question 7

7.

What kind of machine is the volume dial on a stereo?

a.) lever

b.) inclined plane

c.) wheel and axle

d.) block and tackle

Question 8

8.

What simple machine makes an elevator work?

a.) lever

b.) screw

c.) pulley

d.) wedge

Question 9

9.

What is NOT a SIGNIFICANT reason a car loses efficiency?

a.) Friction between any two moving parts that are in contact

b.) Heat that is given off by the cooling system or exhaust

c.) Energy being converted to all the sounds your car makes.

d.) Incomplete combustion in the engine