Physics Chapter 5 Practice Problems

http://www.physics.umanitoba.ca/~birchall/PHYS1020/2009/Lecture_Notes_files/Lecture11.pdf

http://answers.yahoo.com/question/index?qid=20101011192628AApEre7

http://www.physics.rutgers.edu/ugrad/203f08/solutions/Week3 2

http://mysite.avemaria.edu/jcdaly/phys211/homework/assignment5.pdf

http://physicspmb.ukzn.ac.za/image/d/dc/131-tutorial-s1w3.pdf

http://www.csupomona.edu/~skboddeker/121/assign/121ch5h.htm

http://people.cas.uab.edu/~mirov/Lectures%208-9%20Chapter%206%20Fall%202010.pdf 2

http://electron.physics.buffalo.edu/sen/documents/chap4_000.pdf

http://answers.yahoo.com/question/index?qid=20090212230135AAm1TbM

http://physicsx.pr.erau.edu/Courses/CoursesSummerA2013/PS113/chapter_5.pdf

http://www.lcps.org/cms/lib4/VA01000195/Centricity/Domain/2883/Chapter_6.pdf

http://answers.yahoo.com/question/index?qid=20080926082807AAOlW0A

http://answers.yahoo.com/question/index?qid=20101006132948AAImlT7

http://www.phy.ilstu.edu/~holland/phy108/Homework%207%20solution.pdf

http://answers.yahoo.com/question/index?qid=20071109172623AARIGiX

http://www.lasd.k12.pa.us/lhs/FacultyStaff/Classrooms/wertz/documents/prob_230.pdf

http://answers.yahoo.com/question/index?qid=20091111064202AArZoBR

http://answers.yahoo.com/question/index?qid=20101007161635AAOlwzk

http://wc.pima.edu/~solson/phy121/notes/notes15.pdf

http://answers.yahoo.com/question/index?qid=20070924194830AAeC3V0

http://www.physics.rutgers.edu/ugrad/203f08/solutions/Week4.pdf

http://crab.rutgers.edu/~cowley/genphys/ch05prbs.htm

http://www2.physics.umd.edu/~eno/teaching/141/s10/lectures/Chapter5.pdf

http://squalicum.bellinghamschools.org/sites/default/files/squalicum/files/academics/documents/solnMechanicsII.pdf

http://www.physics.rutgers.edu/ugrad/203f07/practiceexams/ch1solutions.pdf

http://www.csupomona.edu/~skboddeker/121/assign/121ch5h.htm

http://answers.yahoo.com/question/index?qid=20130624171052AASO450

http://physicspmb.ukzn.ac.za/image/d/dc/131-tutorial-s1w3.pdf

http://www.physics.umanitoba.ca/~birchall/PHYS1020/2009/Lecture_Notes_files/Lecture11.pdf

http://mysite.avemaria.edu/jcdaly/phys211/homework/assignment5.pdf

 

Physics Chapter 6 Practice Problems

http://wc.pima.edu/~solson/phy121/notes/notes16.pdf

http://answers.yahoo.com/question/index?qid=20111010165745AAQbU2N

http://answers.yahoo.com/question/index?qid=20121014213437AAUShhz

http://kingfish.coastal.edu/physics/phys201_F04/HW/HW_06.pdf

http://minerva.union.edu/labrakes/Work_and_Energy_Problems_Solutions.pdf

http://www.oglethorpe.edu/faculty/~m_rulison/General_Physics/GenPhysHW/GenPhys1HW_Cutnell8/CHAPTER%205%20SOLUTIONS.pdf

 

 

Human Anaomy Chapter 9 Notes

WRONG 1.
A ___________ is a type of joint formed where two bones are joined by a pad of fibrocartilage. The intervertebral joints are an example.
X A. syndesmosis
O B. synchondrosis
O C. gomphsis
C D. symphysis

FEEDBACK

Sorry, that’s not correct. See the section called Cartilaginous Joints.
CORRECT 2.
Which type of synovial joint allows for the greatest range of motion?
X A. ball and socket
O B. hinge
O C. planar
O D. condyloid

FEEDBACK

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CORRECT 3.
Your shoulder and other synovial joints have many moving parts that rub against one another. One of the structures that helps reduce friction between these parts is a fluid-filled sacs called:
O A. menisci
O B. tendons
O C. vesicles
X D. bursae

FEEDBACK

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CORRECT 4.
Functions of the menisci (singular = meniscus) include all of the following EXCEPT:
X A. secretion of synovial fluid
O B. shock absorption
O C. providing a better fit between surfaces
O D. providing a greater surface area for weight distribution

FEEDBACK

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CORRECT 5.
Which of the following help reduce friction in synovial joints?
O A. synovial fluid
O B. articular cartilage
O C. bursae
X D. all of these choices

FEEDBACK

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CORRECT 6.
The extension of fibrocartilage that helps deepen the joint socket in ball and socket joints is called a(n):
O A. meniscus
O B. ligament
X C. labrum
O D. tendon sheath

FEEDBACK

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CORRECT 7.
This layer labeled A is the synovial membrane.

X A. True
O B. False

FEEDBACK

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CORRECT 8.
This layer labeled B articular cartilage.

X A. True
O B. False

FEEDBACK

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CORRECT 9.
The motion of bending a joint, or decreasing the angle between two bones is called flexion.
X A. True
O B. False

FEEDBACK

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CORRECT 10.
The motion of bringing your straightened arms towards the midline (e.g. standing at attention or the second part of a jumping jack) is called adduction.
X A. True
O B. False

FEEDBACK

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CORRECT 11.
Doing arm circles involves what kind of motion?
O A. flexion
O B. extension
X C. circumduction
O D. rotation

FEEDBACK

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CORRECT 12.
Dropping your jaw (opening your mouth) in surprise involves what type of movement?
O A. pronation
X B. depression
O C. supination
O D. elevation

FEEDBACK

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CORRECT 13.
_____________ is the type of movement allowed by the saddle joint at the thumb (e.g. making an “o.k.” symbol).
O A. extension
O B. extension
O C. supination
X D. opposition

FEEDBACK

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CORRECT 14.
When a ballerina goes on pointe (on their toes), this is an example of:
X A. plantar flexion
O B. dorsiflexion
O C. adduction
O D. abduction

FEEDBACK

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CORRECT 15.
Shaking your head “no” or watching a tennis match volley involves hyperextension.
O A. True
X B. False

FEEDBACK

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CORRECT 16.
This ligament labeled A is the anterior cruciate ligament (ACL)

X A. True
O B. False

FEEDBACK

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CORRECT 17.
This structure labeled B: _______________

O A. articular disc
O B. articular cartilage
O C. fibular collateral ligament
X D. lateral meniscus

FEEDBACK

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CORRECT 18.
This ligament labeled C: ________________

O A. lateral cruciate
X B. tibial collateral ligament
O C. fibular collateral ligament
O D. lateral meniscus

FEEDBACK

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WRONG 19.
The temporomandibular joint is a combination of two types of joints, ________ and _________.
O A. hinge and saddle
C B. hinge and planar
X C. planar and condyloid
O D. saddle and planar

FEEDBACK

Sorry, that’s not correct. See the section called Temporomandibular Joint.
CORRECT 20.
The glenohumeral joint is more commonly known as the:
O A. knee
X B. shoulder
O C. wrist
O D. elbow

FEEDBACK

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CORRECT 21.
The shoulder is the most commonly dislocated joint in adults.
X A. True
O B. False

FEEDBACK

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The drawing shows three blocks, each with the same mass, stacked one upon the other. The bottom block rests on a frictionless horizontal surface and is being pulled by a force   that is parallel to this surface. The surfaces where the blocks touch each other have identical coefficients of static friction. Which one of the following correctly describes the magnitude of the net force of static friction fs that acts on each block?

fs,A = fs,C = fs,B/2
fs,A = fs,B = fs,C
fs,C = 0 and fs,A = fs,B/2
fs,A = fs,B = fs,C/2
fs,A = 0 and fs,B = fs,C/2
This answer states that the net frictional force acting on block C is zero, which implies that the surfaces where blocks B and C are in contact are frictionless. However, these surfaces have a coefficient of static friction, so a frictional force must act on block C.
B is incorrect: This answer states that the net frictional forces acting on blocks A and C have the same magnitude. However, a greater frictional force acts on block C than on block A, because the normal force pressing blocks B and C together is greater than the normal force pressing blocks A and B together.
A is incorrect: This answer states that the net frictional forces acting on blocks A and C have the same magnitude. However, a greater frictional force acts on block C than on block A, because the normal force pressing blocks B and C together is greater than the normal force pressing blocks A and B together.
E is incorrect: This answer states that the net frictional force acting on block A is zero, which implies that the surfaces where blocks A and B are in contact are frictionless. However, these surfaces have a coefficient of static friction, so a frictional force must act on block A.
C is incorrect: This answer states that the net frictional force acting on block C is zero, which implies that the surfaces where blocks B and C are in contact are frictionless. However, these surfaces have a coefficient of static friction, so a frictional force must act on block C.
D is correct: The static frictional force that blocks A and B exert on each other has a magnitude f. The force that B exerts on A is directed to the right (the positive direction), while the force that A exerts on B is directed to the left. Blocks B and C also exert static frictional forces on each other, but these forces have a magnitude 2f, because the normal force pressing B and C together is twice the normal force pressing A and B together. The force that C exerts on B is directed to the right, while the force that B exerts on C is directed to the left. In summary, then, block A experiences a single frictional force +f, which is the net frictional force; block B experiences two frictional forces, f and +2f, the net frictional force being f +2f = +f; block C experiences a single frictional force +2f, which is the net frictional force. It follows that fs,A = fs,B = fs,C/2.
Three identical blocks are being pulled or pushed across a horizontal surface by a force  , as shown in the drawings. The force   in each case has the same magnitude. Rank the kinetic frictional forces that act on the blocks in ascending order (smallest first).

B, A, C
A, C, B
C, B, A
C, A, B
B, C, A
E is incorrect: This answer states that the kinetic frictional force is smaller in C than in A. The magnitude of the frictional force is proportional to the magnitude of the normal force. However, the normal force in C is greater than the block’s weight due to the vertical component of  , whereas the normal force in A is equal to the block’s weight. Therefore, the frictional force in C is greater, not smaller, than in A.
B is incorrect: This answer states that the kinetic frictional force is smaller in C than in B. The magnitude of the frictional force is proportional to the magnitude of the normal force. However, the normal force in C is greater than the block’s weight due to the vertical component of  , whereas the normal force in B is less than the block’s weight due to the vertical component of  . Therefore, the frictional force in C is greater, not smaller, than in B.
C is correct: The magnitude of the kinetic frictional force is proportional to the magnitude of the normal force. The normal force is smallest in B, because the vertical component of   compensates for part of the block’s weight. In contrast, the normal force is greatest in C, because the vertical component of   adds to the weight of the block.

A heavy block is suspended from a ceiling using pulleys in three different ways, as shown in the drawings. Rank the tension in the rope that passes over the pulleys in ascending order (smallest first).

B is correct: More pulleys, less tension on rope.  In B the tension T is the smallest, because three rope segments support the weight W of the block, with the result that 3T = W, or T = W/3. In A the tension is the greatest, because only one rope segment supports the weight of the block, with the result that T = W.

Human Anatomy Things to know

Articulate – create a joint

process – projections on bone that form joints or points of attachment

Tuberosity – Rough, bumpy surface or projection

Tubercle – rounded projection. A tube is round in shape

Trochanter: Very large projection

Foramen: Hole for blood vessels or nerves. Foramina is the plural form.

Fossa: depression for bones to articulate.

Fissure – narrow slits in bone for blood vessels and nerves

Spinous process – pointed, sharp projections

Condyle – Large, rounded bulges with a smooth articular surface at the end of bones

Epicondyle – Rough bugles that are superior (above) to the condyle

Meatus – rounded passageways for blood vessels. Look like a tube of blood vessels surrounded by meat

Sulcus – Grooves in bone

Head – rounded at end of bones to connect to a joint

Line – Long narrow ridge or border

Crest – more prominent than a line.

Facet – smooth, flat, articular surface

 

 

Human Anatomy Chapter 7

Your upper teeth are embedded in which bone? maxilla

The roof of your mouth (hard palate) is formed by which two bones? palantine and maxilla

Which of the following bones does NOT form part of the orbit (eye socket)? nasal

Which of the following bones contains paranasal sinuses? ethmoid

Which bone contains the external auditory meatus? temporal

Which two bones contribute to forming the nasal septum? vomer and ethmoid

A: occipital condyle

B: mastoid process

C. jugular foramen

D. palantine

E. pterogoid process of the sphenoid bone (keystone bone)

Olfactory nerves travel through small holes in which bone? ethmoid

The spinal cord passes through the vertebral foramen in each vertebra.

C1: atlas

What is one feature that you can find in ALL cervical vertebrae but not in thoracic or lumbar? transverse foramen

The placement of hands directly on the body of the sternum is very important during CPR to avoid breaking the xiphoid (inferior portion of the sternum) located just inferior to the sternal body.

 

Human Anatomy Chapter 8

Which bones make up the pectoral girdle? clavicle and scapula

The ulna is located in the forearm on the medial side (i.e. “pinky” side). True

This feature is the coranoid process

False. It is the acromion

When you palpate your shoulder, the highest point you feel is the acromion process.

The roughened section on the humerus where the deltoid muscle attaches is called the deltoid tuberosity.

The slightly raised, roughened, V-shaped area on the middle portion of the diaphysis of the humerus is the deltoid tuberosity.

The olecranon process is located on the distal end and posterior side of the humerus. False

At the elbow joint, the radius articulates (connects) with: the capitulum of the humurus

The projection on the medial and posterior aspect of your wrist is formed by the: styloid process of the ulna

The bony pelvis is composed of which bones? sacrum, two od vocsr, and the pubic symphysis

The head of the femur fits into the acetabulum a depression or socket in the hip bone.

The projection on the lateral surface of your ankle is formed by which structure? lateral malleolus (small mallet or hammer) of the fibula.

If you break the end bone of the big toe you have damaged the 1st distal phalanx

If you break the end bone of the big toe you have damaged the ________________
X A. first distal phalanx
O B. first metatarsal
O C. fifth proximal phalynx
O D. talus

FEEDBACK

Congratulations, your answer is correct!
CORRECT 15.
This feature is the greater sciatic notch

X A. True
O B. False

FEEDBACK

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CORRECT 16.
This depression is known as the acetabulum

X A. True
O B. False

FEEDBACK

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CORRECT 17.
This region is the superior ramus of the pubis

O A. True
X B. False

FEEDBACK

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WRONG 18.
Lateral to your umbilicus, the projection you can palpate from the surface that people usually call your “hip bone” is actually what?
O A. ischial spines
X B. pubic symphysis
O C. acetabulum
C D. iliac crests

FEEDBACK

Sorry, that’s not correct. See the section called Bones of the Pelvic Girdle.
WRONG 19.
When you are sitting, your weight is resting on the:
O A. iliac crest
C B. ischial tuberosities
O C. ischial spines
X D. sacrum

FEEDBACK

Sorry, that’s not correct. See the section called Bones of the Pelvic Girdle.
WRONG 20.
Male and female pelves differ in all of the following ways EXCEPT:
C A. pubic arch in males is > 90 degrees
X B. female pelvis is wider and shallower
O C. males have a more rounded obturator foramen
O D. females have a rounder pelvic inlet

FEEDBACK

Sorry, that’s not correct. See the section called Comparison of Female and Male Pelves.
CORRECT 21.
Another name for the knee joint is the __________ joint.
O A. tibiofibular
X B. tibiofemoral
O C. fibulofemoral
O D. fibulotarsal

FEEDBACK

Congratulations, your answer is correct!
WRONG 22.
The sharp line along the anterior surface of your lower leg (your shin) is formed by the anterior crest of the fibula.
X A. True
C B. False

FEEDBACK

Sorry, that’s not correct. See the section called Skeleton of the Leg—Tibia and Fibula.
CORRECT 23.
The ‘ankle bone’ at the distal end of the tibia is the tibial tuberosity.
O A. True
X B. False

FEEDBACK

Congratulations, your answer is correct!
WRONG 24.
All of the following bones are tarsals EXCEPT:
X A. talus
O B. calcaneus
C C. trapezoid
O D. navicular

FEEDBACK

Sorry, that’s not correct. See the section called Skeleton of the Foot.
WRONG 25.
Your “heel” bone is the:
X A. talus
O B. navicular
O C. cuboid
C D. calcaneus

FEEDBACK

Sorry, that’s not correct. See the section called Skeleton of the Foot.

Retake Test