lever system

Question 1

fulcrum F

Answer 1

joint

Question 2

pull P

Answer 2

force of muscle contracting

Question 3

Class 1 lever system

Answer 3

F (joint) between Pull (muscle) and weight
see saw

Question 4

class 1 example

Answer 4

altonocciptal joint
head looking at the sky

Question 5

class 1 characteristic

Answer 5

limited in amount of weight it can pull

Question 6

class 2

Answer 6

WEIGHT between F (joint) and P (muscle)
wheel barrow

Question 7

class 2 example

Answer 7

depressing mandible
doing pushups
toes F, body W, arms are P

Question 8

Class 3

Answer 8

PULL (muscle) between Weight and F (joint)
person using a shovel

Question 9

class 3 example

Answer 9

bicepeps brachi (W) pulling on radius to (lever) to flex elbow (F) and raise the hand

Question 10

class 3 characteristics

Answer 10

most common in body
does not allow great weight to be lifted but does allow to lift for greater distances