NAME: _______________________________
2014 ESO Simple Machines Test Answer KEY
1
Wheel & Axel
2
Lever
3
Screw
4
Inclined Plane
5
B – Force
6
D – an Axel
7
B – Move the fulcrum closer to the load
8
A – is always less than 100%
9
A – output force is 4 times the effort
10
D – B=resistance; A=fulcrum; C=effort
11
C – 4
12
Class One
13
Shorten it or move elephant much closer to middle
14
Not changing
15
pulley
16
Lever
17
B. Long
18
Inclined plane and wheel and axle
19
lever
20
5 or 6 units, they may say inches
21
harder
22
pulley
23
B. 50 lbs
24
lever
25
A. Resistance force
26
E.
27
A.
28
Lever and wheel and axle
29
The lever part makes it easier to turn