Free Printable Simple Machine Test

1.

Which of the following is the formula for the Ideal Mechanical Advantage of a Screw?

a)

$IMA\ =\ \frac{C}{P}$

b)

$IMA\ =\ \frac{F_R}{F_E}$

c)

$IMA\ =\ \frac{D_R}{D_E}$

d)

$IMA\ =\ \frac{Radius}{Threads\ Per\ Inch}$

2.

How do you determine what kind of lever is being used?

a)

The length of the lever

b)

The Ideal Mechanical Advantage

c)

By what is located in the middle

d)

The height of the fulcrum

3.

What is the Ideal Mechanical Advantage of the inclined plane?

a)

0.6:1

b)

1.7:1

c)

1.25:1

d)

1.3:1

4.

What is the mechanical advantage of the pulley system?

a)

5:1

b)

2:1

c)

3:1

d)

4:1

5.

What is the PITCH of this bolt?

a)

3/8

b)

16

c)

8

d)

0.0625

6.

Kevin uses a wedge to split wood. If his wedge is 4 inches long, and 1 inch wide at the end opposite the cutting edge, how much force will he need to apply in order to get the 36 pounds of force required to split a piece of wood?

a)

9 pounds

b)

4 pounds

c)

36 pounds

d)

18 pounds

7.

While driving, a normal human will apply about 4 pounds of force to the steering wheel to get the 28 pounds needed to turn the car. If the steering column connected to the wheel assembly is 2 inches across, how big must the steering wheel be?

a)

7 inches

b)

8 inches

c)

54 inches

d)

14 inches

8.

If it requires 5 pounds of force to move the 16 pound weight, what is the efficiency of the system?

Effieciency\ =\ \frac{AMA}{IMA}\times100\%

a)

3.2

b)

80%

c)

0.80%

d)

125%

9.

What is the purpose of using a Simple Machine?

a)

To make life simple

b)

To decrease the amount of work done

c)

To decrease the amount of force required

d)

To decrease the distance required

10.

Which of the following is true in a world without friction?

a)

$AMA\ =\ \frac{F_E}{F_R}$

b)

$IMA\ =\ \frac{D_R}{D_E}$

c)

$IMA\ =\ \frac{1}{TPI}$

d)

$\frac{D_E}{D_R}\ =\ \frac{F_R}{F_E}$

Simple Machine Test

Total questions: 10

Worksheet time: 25mins

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