STANDARD 4 REVIEW MODULE 7
Objective
a.) Calculate the mechanical advantage created by a lever
b.) Engineer a device that uses levers or inclined planes to create a mechanical advantage.
Vocabulary (yeah I know, it is a big list)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
force : A push or a pull.
resistance/output distance : The length of the side of a simple machine that has the resistance or
output force on it.
effort/input distance : The length of the side of a simple machine that has the effort or input force on
it.
resistance/output force : The amount of force that comes out of a simple machine.
effort/input force : The amount of force that is put into a simple machine.
Fulcrum : The balance or pivot point on a lever.
mechanical advantage : The number of times a simple machine multiples the force or distance put into
it.
first class lever : A lever system with the fulcrum between the output/resistance and input/effort
force.
second class lever : A lever system with the output/resistance force between fulcrum and the
input/effort force.
third class lever : A lever system with the input/effort force between fulcrum and the
output/resistance force.
lever : A rigid bar that is free to rotate or pivot on a fixed point
ramp/inclined plane : A flat, sloped surface.
simple machine : A device that can change the direction of an applied force or the amount of an
applied force.
Learning Activities
SMARTNotes differentiated Reading Activity-Handout
Green Resource
Yellow Resource
Red Resource
Simple Machine Station Activity-Handout
Simple Machine Station Activity-Key
Standard 4 Component 7 Essential Questions
1.) Explain in your own words how you calculate the mechanical advantage of a
ramp. Use a drawing.
2.) Explain how you calculate the mechanical advantage of a lever. Use a drawing.
Standard 4 Component 7 Practice Vocabulary Quiz
1. A push or a pull.
a. force
b. resistance/output force
c. effort/input force
d. gravity
2. The length of the side of a simple machine that has the resistance or output
force on it.
a. resistance/output distance
b. resistance/output force
c. effort/input distance
d. effort/input force
3. The length of the side of a simple machine that has the effort or input force on
it.
a. resistance/output distance
b. resistance/output force
c. effort/input distance
d. effort/input force
4. The amount of force that comes out of a simple machine.
a. resistance/output distance
b. resistance/output force
c. effort/input distance
d. effort/input force
5. The amount of force that is put into a simple machine.
a. resistance/output distance
b. resistance/output force
c. effort/input distance
d. effort/input force
6. The balance or pivot point on a lever.
a. Center
b. Fulcrum
c. Section
d. Midpoint
7. The number of times a simple machine multiples the force or distance put into
it.
a. efficiency
c. mechanical advantage
b. multiplying factor
d. force multiplier
8. A lever system with the fulcrum between the output/resistance and
input/effort force.
a. first class lever
c. third class lever
b. second class lever
d. lever
9. A lever system with the output/resistance force between fulcrum and the
input/effort force.
a. first class lever
b. second class lever
c ) third class lever
d. lever
10. A lever system with the input/effort force between fulcrum and the
output/resistance force.
a. first class lever
c. third class lever
b. second class lever
d. lever
11. A rigid bar that is free to rotate or pivot on a fixed point
a. first class lever
b. second class lever
c. third class lever
d. lever
12. A flat, sloped surface.
a. lever
b. ramp/inclined plane
c. simple machine
d. slope
13. A device that can change the direction of an applied force or the amount of an
applied force.
a. ramp
b. lever
c. pulley
d. simple machine
Standard 4 Component 7 Practice Content Quiz
1. What is the mechanical advantage of this lever?
a. 3
b. 9
c. 15
d. 45
15 meters
1meters
2. What is the mechanical advantage of this ramp?
a. 2
b. 4
c. 25
d. 100
1 METERS
4 METERS
3. The data below was collected using a simple machine. What is the
mechanical advantage of this machine?
a. 2
b. 3
c. 4
Effort Force Resistance
Force
2 Newtons 10 Newtons
3 Newtons 15 Newtons
4 Newtons 20 Newtons
5 Newtons 25 Newtons
6 Newtons 30 Newtons
d. 5
4. How many Newtons could be lifted on the short side of this lever?
a. 30
b. 40
c. 80
d. 12
Standard 4 Component 7 Essential Questions Key
1.) Explain in your own words how you calculate the mechanical advantage of a
ramp. Use a drawing. You can calculate the mechanical advantage of a ramp in
two ways. The first way is by dividing the large force/Newtons (resistance force)
by the small force/Newtons(effort force). In the example below you would
divide the 75N by the 15N and get 5. This means whatever the resistance force is
you would be able to move it with only 1/5th of the force. You can calculate it
also using the distances. You could divide the length of the ramp, 25 meters, by
the height of the ramp (5 meters). This would give you a factor of 5 as well.
5 meters
high
75
Newtons
25 meter
long ramp
15
Newtons
2.) Explain how you calculate the mechanical advantage of a lever. Use a drawing.
You can calculate the mechanical advantage in two ways. The first is to divide the large
force/Newtons by the small Force/Newtons. The example below would be 60N/20N. The
Newtons cancel and you are left with a factor of 3. This also works for the distance. Divide
the large distance by the smaller distance. In the example below you would o
3meters/1meter which would equal a factor of 3. This factor of 3 means whatever force you
put in(effort force) you will get 3 times the force out (resistance force).
Standard 4 Component 7 Practice Vocabulary Quiz Key
1. A push or a pull.
a. force
b. resistance/output force
c. effort/input force
d. gravity
2. The length of the side of a simple machine that has the resistance or output
force on it.
a. resistance/output distance
c. effort/input distance
b. resistance/output force
d. effort/input force
3. The length of the side of a simple machine that has the effort or input force on
it.
a. resistance/output distance
c. effort/input distance
b. resistance/output force
d. effort/input force
4. The amount of force that comes out of a simple machine.
a. resistance/output distance
c. effort/input distance
b. resistance/output force
d. effort/input force
5. The amount of force that is put into a simple machine.
a. resistance/output distance
c. effort/input distance
b. resistance/output force
d. effort/input force
6. The balance or pivot point on a lever.
a. Center
b. Fulcrum
c. Section
d. Midpoint
7. The number of times a simple machine multiples the force or distance put into
it.
a. efficiency
b. multiplying factor
c. mechanical advantage d. force multiplier
8. A lever system with the fulcrum between the output/resistance and
input/effort force.
a. first class lever
c. third class lever
b. second class lever
d. lever
9. A lever system with the output/resistance force between fulcrum and the
input/effort force.
a. first class lever
c. ) third class lever
b. second class lever
d. lever
10. A lever system with the input/effort force between fulcrum and the
output/resistance force.
a. first class lever
c. third class lever
b. second class lever
d. lever
11. A rigid bar that is free to rotate or pivot on a fixed point
a. first class lever
b. second class lever
c. third class lever
d. lever
12. A flat, sloped surface.
a. lever
b. ramp/inclined plane
c. simple machine
d. slope
13. A device that can change the direction of an applied force or the amount of an
applied force.
a. ramp
b. lever
c. pulley
d. simple machine
Standard 4 Component 2 Practice Content Quiz Key
1. What is the mechanical advantage of this lever?
a. 3
b. 9
c. 15
d. 45
15 meters
1meters
2. What is the mechanical advantage of this ramp?
a. 2
b. 4
c. 25
d. 100
1 METERS
4 METERS
3. The data below was collected using a simple machine. What is the
mechanical advantage of this machine?
a. 2 b. 3 c. 4 d. 5
Effort Force Resistance
Force
2 Newtons 10 Newtons
3 Newtons 15 Newtons
4 Newtons 20 Newtons
5 Newtons 25 Newtons
6 Newtons 30 Newtons
4. How many Newtons could be lifted on the short side of this lever?
a. 30
b. 40
c. 80
d. 12