WorksheetsWork and Simple Machines Test Review
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
What instrument would be used to measure the force that is applied to lift something?
a)
gram balance
b)
meter stick
c)
stop watch
d)
spring scale
2.
What type of pulley does not reduce the amount of effort and only changes the direction of the force?
a)
grooved
b)
fixed
c)
movable
d)
complex
3.
A simple machine reduces the force required to do work by changing the ___ or direction of the force.
a)
work
b)
distance
c)
motion
4.
The unit for force is ___.
a)
Tons
b)
Inches
c)
Newtons
d)
Neutrons
5.
Mechanical ___ measures how well a machine converts input energy, work, and power into output energy, work, and power.
a)
efficiency
b)
energy
c)
motion
6.
The name of the fixed point that a lever is free to move around is called a ___.
a)
wheel and axle
b)
wedge
c)
screw
d)
fulcrum
7.
Inclined planes that are wound around a post or cylinder are called ___.
a)
block and tackle systems
b)
wedges
c)
screws
d)
ramps
8.
Pulleys that are ___, meaning that they are not attached to a structure, can be found on construction cranes.
a)
movable
b)
fixed
c)
complex
d)
grooved
9.
Door knobs and steering wheels are examples of ___.
a)
inclined planes
b)
pulleys
c)
wheel and axles
d)
levers
10.
Pulleys that are ___, meaning that they are attached to a structure, can be found on window blinds.
a)
fixed
b)
movable
c)
complex
d)
grooved
11.
An important way to improve the efficiency of a machine is to __ the amount of friction.
a)
increase
b)
decrease
c)
maintain
12.
A ___ is a device that helps reduce the amount of force required to do work.
a)
Newton
b)
spring scale
c)
simple machine
13.
When work has been done, there is evidence of ___used.
a)
pulling
b)
energy
c)
mass
d)
pushing
14.
What type of compound machine consists of a lever and a wedge?
a)
bicycle
b)
shovel
c)
fishing pole
15.
What type of compound machine has two levers and two wedges?
a)
scissors
b)
bicycle
c)
fishing pole
16.
Where do you want the weight placed on a fulcrum to require the least amount of force?
a)
close to the fulcrum
b)
far away from the fulcrum
17.
Is work or no work being done on the backpack? A student holds a backpack.
a)
work
b)
no work
18.
Which type of pulley requires the least amount of force?
a)
fixed
b)
movable
c)
block and tackle
19.
When using an inclined plane, do you want a long or short ramp?
a)
long
b)
short
20.
Is work or no work being done on the grocery cart? A man pushes a grocery cart.
a)
work
b)
no work
100 %
