Machines and Work

Name: ______________________   Date: ____________

Write the missing letters on the lines to finish each word.

1.
c m d c
2.
n i
A wheeled vehicle consisting of a self-propelled ___ that is used to draw trains along railway
3.
f c
The resistance encountered when one body is moved in contact with another
4.
r m
The pivot about which a lever turns
5.
c d l n
A simple machine for elevating objects
6.
e
A simple machine that gives a mechanical advantage when given a fulcrum
7.
p l
A simple machine consisting of a wheel with a groove in which a rope can run to change
8.
w
A simple machine of the inclined-plane type consisting of a spirally threaded cylindrical rod
9.
s i m e
10.
e
A large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese
11.
h l l e
Hoist so arranged that a rope unwinding from a ___ is wound onto a cylindrical drum or shaft
12.
k
Job or effort to get something done
13.
p a r
Stiff paper coated with powdered emery or sand
14.
d
A small flat rectangular piece of glass on which specimens can be mounted for microscopic study
15.
l i
A volatile flammable mixture of hydrocarbons derived from petroleum
16.
e y
The power to do work or make things move
17.
e a n s
18.
c n a c
19.
c e
One of the contractile organs of the body
20.
n m
A living organism characterized by voluntary movement