WorksheetsSection 7.3 "Work & Simple Machines"
Total questions: 13
Worksheet time: 3hrs 15mins
Name
Class
Date
1.
How does a movable pulley make lifting objects easier?
a)
The amount of force needed is doubled
b)
the amount of force needed is increased
c)
the amount of force needed is reduced
d)
the amount of force needed stays the same
2.
Where should the fulcrum be placed in order for the student to use the least amount of effort possible?
a)
point A
b)
point B
c)
point C
d)
point D
3.
What is a simple machine?
a)
objects that make work easier for us by allowing us to push or pull over increased distances
b)
objects that never work
c)
people that don't work at all
d)
things that lazy people use
4.
What are the different kinds of simple machines?
a)
eyes, ears, mouth
b)
brain, heart, soul
c)
computer, tablet, phone
d)
pulley, inclined plane, lever, wedge,
5.
What is a wheel & axle?
a)
Uses grooved wheels and a rope to raise, lower , or move a load
b)
A wheel with a rod, called an axle, , that goes through its center can lift or move load
c)
a stiff bar that rests on a support called a fulcrum which lifts or moves loads
d)
A slanting surface connecting a lower level to a higher level
6.
According to the scientific definition, in order for work to be done what has to occur?
a)
Exercise
b)
Steam
c)
Electricity
d)
Movement
7.
How does a driver use a steering wheel as a simply machine?
a)
The driver is using a wheel and axle to reduce the amount of force.
b)
The driver is using a lever to steer the vehicle
c)
The driver is using a pulley and lever to steer the vehicle
d)
The driver is using a wheel and axle to reduce the amount of work needed to steer the vehicle
8.
This is the definition of what?
Pushing or pulling an object to make it move.
Pushing or pulling an object to make it move.
a)
Friction
b)
Work
c)
Acceleration
d)
None of the Above
9.
If you use a crowbar to get the lid off of a bucket, what simple machine are you using?
a)
Inclined Plane
b)
Pulley
c)
Wheel and Axle
d)
Lever
10.
Stairs
a)
wedge
b)
pulley
c)
inclined plane
d)
wheel and axle
11.
Flagpole
a)
wedge
b)
pulley
c)
incline plane
d)
wheel and axle
12.
Lightbulb
a)
wedge
b)
pulley
c)
incline plane
d)
screw
13.
Which is not a type of simple machine?
a)
spring
b)
screw
c)
pulley
d)
wedge
100 %
