WorksheetsInclined Planes and Lever/Putting Machines Together
Total questions: 20
Worksheet time: 15mins
Name
Class
Date
1.
The ideal mechanical advantage of an inclined plane is the length of the plane divided by its FORCE.
a)
True
b)
False
2.
When you use a wedge, instead of moving an object along the inclined plane, you move THE INCLINED PLANE ITSELF.
a)
True
b)
False
3.
The THICKER the wedge, the greater its mechanical advantage.
a)
True
b)
False
4.
In a first-class lever, the FULCRUM is between the input force and the output force.
a)
True
b)
False
5.
A knife is an example of a LEVER.
a)
True
b)
False
6.
The lower arm acts like a FIRST-CLASS lever when it bends at the elbow.
a)
True
b)
False
7.
A flat, sloped surface is called a(n)...
a)
Lever
b)
Screw
c)
Fulcrum
d)
Inclined Plane
8.
A device that is thick at one end and thin at the other end is a ...
a)
Wedge
b)
Screw
c)
Lever
d)
Fulcrum
9.
The threads of a screw act like a(n)...
a)
Lever
b)
Wedge
c)
Inclined Plane
d)
Fulcrum
10.
The fixed point that a lever pivots around is the...
a)
Fulcrum
b)
Plane
c)
Screw
d)
Wedge
11.
One of the simple machines that turn is the wheel and ....
a)
axle
b)
pulley
12.
A single fixed pulley changes the __________ of the force
a)
Distance
b)
Direction
13.
A system of fixed and _______ pulleys is called a block and tackle.
a)
movable
b)
stationary
14.
A screwdriver and a doorknob are examples of a(an) ________________.
a)
pulley
b)
Wheel and Axle
15.
To find mechanical advantage of a wheel and axle, MULTIPLY the radius of the wheel by the radius of the axle.
a)
True
b)
False
16.
In a compound machine, the _________ of one simple machine becomes the input force of another simple machine.
a)
Input Force
b)
Output Force
17.
If a compound machine is made of a pulley with a mechanical advantage of 3 and a wheel and axle with a mechanical advantage of 5, the mechanical advantage of the compound machine is 8.
a)
True
b)
False
18.
To find the mechanical advantage of a PULLEY, count the sections of rope that support the object.
a)
True
b)
False
19.
A bicycle is a compound machine because it contains MORE THAN ONE simple machine.
a)
True
b)
False
20.
The part of a wheel and axle with the smaller radius if the WHEEL.
a)
True
b)
False
100 %
