Soc 20- Levers

Question 1

Whats a lever

Answer 1

Refers to a systems of muscles and bones working together to bring about movement

Question 2

What accronym can you use

Answer 2

FLE

Question 3

Whats inbthe middle of a 1st class lever

Answer 3

Fulcrum

Question 4

Whats in the middle of a 2nd class lever

Answer 4

The load

Question 5

Whats in the middlw of a 3rd class lever

Answer 5

The effort

Question 6

Fulcrum

Answer 6

Joint

Question 7

Load

Answer 7

Mass

Question 8

Effort

Answer 8

Mucle

Question 9

Example of first clas lever

Answer 9

Nodding your neck. L-in head. F-bones in neck. E-muscles in neck

Question 10

Example of second class

Answer 10

Calf raisers. E-gastrocnemius. L-ankle F-toes

Question 11

Example of third class

Answer 11

Bicep curl. E-biceps, F-elbow joint, load-mass

Question 12

Mechanical advantage

Answer 12

When the output greater than input. E.g pushing a door as far away from the lever

Question 13

Mechanical disadvantage

Answer 13

Input greatr than output. E.g pushing a door right beside the lever

Question 14

What levers work at mechanical advantage

Answer 14

First and second

Question 15

What levers work at mechanical disadvantage

Answer 15

Third