What class lever is represented by a fishing pole

Questions Cloud

User Account

All Pages

Reference no: EM13798838

Reference no: EM13798838

Assignment Help Physics

EXPERIMENT: Simple Machine - Lever

Experiment 1:

DATA TABLE 1: Fulcrum at _______ cm

Trial	Load (Mass)	Distance of Load from fulcrum	Effort (Mass)	Distance of Effort from fulcrum	Ratio: Effort Distance/ Load Distance
1	1 quarter		1 quarter
2	2 quarters		1 quarter
3	3 quarters		1 quarter
4	4 quarters		1 quarter

Experiment 2: Part 1 - First-class lever:

DATA TABLE 2: First-class Lever, Fulcrum at _____ m

Trial	Load (Mass, g)	Load (Mass, N)	Load distance, m	Mass of 500-g Spring scale	Spring scale reading, N	Effort Force, N	Effort Distance, m	M.A.
1				62g = 0.61N
2				62g = 0.61N
3				62g = 0.61N

Example Data Table

Trial

Load

(Mass, g)

Load

(Mass, N)

Load distance,

Mass of

500-g

Spring scale

reading, N

Effort

Force, N

Effort

Distance, m

M.A.

100

0.3

62g = 0.61N

10g =0.1N

0.71N

.45

1.41

153

1.5

0.3

62g = 0.61N

45g =0.44N

1.05N

.45

1.42

Checking results: Work_in = Work_out or 1N*0.3m = 0.71N*.45m * MA = 1/0.71 = 1.41

Experiment 2: Part 2 - Second-class lever:

DATA TABLE 3: Second-class Lever, Fulcrum at _____ m

Trial	Load (Mass, N)	Load distance, m	Effort Force, N	Effort Distance, m	M.A.
Example	1.47	0.2	80g = 0.78N	.90	1.9
1
2
3
4
etc

Experiment 2: Part 3 - Third-class lever:

DATA TABLE 4 (Third-class Lever), Fulcrum at _____ m

Calculations:

1. In Experiment 1 calculate the ratios of the measured distances; i.e. the rations of Effort Distance/Load Distance

2. In Experiment 2, Parts 2, 3 and 4 convert grams as needed to Newtons.

3. In Parts 2, 3, and 4 calculate M.A. for each trial of each lever type.

Questions:

In Experiment 1 you calculated the ratios of the measured distances, i.e. the ratios of Effort Distance/Load Distance. What is the significance of these ratios? How did your calculations compare to your expectations?

The spring balance is reasonably accurate for determining the load mass. However, the spring balance weighs 62 grams. Explain how to use the Work_in = Work_out principle to verify the mass of the spring balance.

After examining the 1^st class lever data what kind of general statement can be made with regards to mechanical advantage and the relationship of load distance to effort distance?

What happens to the mechanical advantage for 2^nd class levers as the load moves further away from the fulcrum?

What is the significance of the mechanical advantage of class 3 levers?

What class lever is represented by a fishing pole? Why?

What kind of lever is represented by an oar used in rowing? Why?

How many individuals can a manager direct efficiently : Key questions to ask when designing an effective organizational structure include. How many individuals can a manager direct efficiently and effectively

What is its best move given that must capture black knight : BLACK: K-e7; Pawn: e-6; N-e4; WHITE: K-e2; Pawn: c2, f7; B-e5; White to move. What is its best move given that it must capture the black knight in three moves or less

Differentiate between production and protection : Differentiate between production and protection in a safety management system.

Describe the need to manage project scope : Describe the need to manage project scope throughout a project's life cycle to provide closure to a properly executed project.

What class lever is represented by a fishing pole : What is the significance of the mechanical advantage of class 3 levers? What class lever is represented by a fishing pole? Why? What kind of lever is represented by an oar used in rowing? Why

Describe any content and formatting errors found : Describe any content and formatting errors found.

Layers of security for general aviation : How effective is it? Give one example of how this layer of security would work successfully.

Calculate the unit contribution margin : Calculate the unit contribution margin and contribution margin ratio for each birdbath sold - Morning Dove's utilities and maintenance costs are mixed with the fixed components shown in parentheses.

Discuss ethical pursuing a social responsibility program : Discuss the ethical implications of pursuing a social responsibility program in terms of your stockholders and stakeholders. What is the personal framework you are using to make these ethical decisions for your company

Load

(Mass, N)

Load distance,

M

Effort

Force, N

Effort

Distance, m

Efficiency