Unit Test — Unit test Answers

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Susan and Laura are having a disagreement over who has more muscular strength. Susan is a distance runner and Laura is a sprinter. Which girl would be more likely to have more muscular strength?

A
Susan because her muscles can contract repeatedly over a longer period of time.
B
Laura because her muscles can produce more force for a single event.
C
Laura because her muscles can remain contracted over a longer period of time.
D
Susan because her muscles work together to produce great force to take her the distance.
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Select the statement that accurately describes the muscular system.

A
The muscular system is composed of two different types of muscles.
B
The muscular system is composed of muscles, tendons, and ligaments.
C
The muscular system is responsible for controlling the actions of smooth and cardiac muscles.
D
The muscular system is composed of smooth, skeletal, and cardiac muscles.
35

Weight lifters often use supplements and drugs to enhance their appearance or performance. In which scenario is the weight lifter placing himself or herself at the greatest risk for harm?

A
An overweight high school football player is using caffeine to combat fatigue during his workouts.
B
A thin high school lacrosse player is using creatine to improve performance on the field.
C
A healthy high school wrestler is using anabolic steroids to build muscle mass.
D
A normal high school student is using one daily protein supplement to build muscle.
36

How can tight muscles result in back pain?

A
They contain sensitive nerves that become painful when tight.
B
They can constrict the nerves in the spinal column.
C
Tight muscles stretch surrounding tissues and organs.
D
They improve posture, which results in back pain.
37

Which of the following BEST describes the exercise principle of specificity?

A
maintaining a challenging workout
B
establishing a regular exercise schedule
C
targeting a particular area for improvement
D
shifting the types of exercises in a workout
38

Lisa is beginning a weight-training program to firm up and gain muscular strength. She has decided to do some cycling or treadmill jogging to warm up, stretch before the workout and lift weights that isolate each muscle group in her body. She'll take the time to stretch before she leaves the gym. She is so dedicated that she is going to do this workout every day. After doing this for a few months, what may be the biggest concern?

A
Lisa could experience burnout from spending so much time in the gym.
B
Lisa could become obsessed with how she looks.
C
Lisa might lose her friends because she is devoting too much time to working out.
D
Lisa might experience symptoms of overtraining, like weight loss and increased irritability.
39

When comparing a well-designed muscular strength workout to a well-designed muscular endurance workout, you would conclude that __________.

A
fewer repetitions with heavier weights would build muscular strength, while less weight and more repetitions would build muscular endurance
B
more weight and more repetitions build strength, while less weight and fewer repetitions build endurance
C
moderate weight with high repetitions builds strength, while heavy weight with low repetitions builds endurance
D
less weight with low repetitions builds strength, and moderate weight with low repetitions builds endurance
41

Which of the following BEST describes a body in equilibrium?

A
It is standing upright.
B
All forces acting on a body are balanced.
C
The force of gravity has been overcome.
D
No forces are acting on the body.
42

All of the following are functions of smooth muscles EXCEPT:

A
heartbeat
B
breathing
C
perspiration
D
digestion
43

As a general rule, women __________.

A
are more flexible than men
B
are less flexible than men
C
are as flexible than men
D
are flexible in different ways than men
44

Bad posture can result in __________.

A
neck pain
B
back pain
C
muscle tightness
D
all of the above
46

The carpal bones in the wrist are an example of __________.

A
hinge joints
B
condyloid joints
C
saddle joints
D
gliding joints
47

What is kinetic energy?

A
the energy an object has due to its motion
B
the energy derived from chemical reactions
C
the energy an object has due to its position
D
the energy an object releases as heat
48

The neck is a __________.

A
first class lever
B
second class lever
C
third class lever
D
fourth class lever
49

Based on the scenario below, select the statement that accurately finishes the sentence. Stacey has recently had a car accident and has lost her sense of taste as a result. It is MOST likely that she has __________.

A
damaged her peripheral nervous system because the information regarding taste cannot be transmitted back to her brain
B
damaged her central nervous system because the tongue is so close to the brain
C
damaged her peripheral nervous system because this is typical for a spinal cord injury
D
damaged her peripheral nervous system because it is responsible for basic body functions like breathing and taste
50

An individual picks up a cup and drinks from it. This is an example of __________.

A
a concentric contraction because muscles cause the elbow joint and arm to move
B
an eccentric contraction because the release of the muscle in the back of the arm causes the elbow to bend
C
an isometric contraction because the cup was stationary until the hand picked it up
D
a midcentric contraction because the movement took place around the core of the body
51

Which statement BEST describes the factors that affect muscular endurance?

A
size of the muscle cells, ability to store fuel, and blood supply to the muscles
B
number of muscles, amount of exercise, and type of person
C
level of flexibility, amount of exercise, and ability to store fuel
D
blood supply to the muscle, type of exercise, and type of muscle cells
52

Which suggested change would cause the greatest increase in the amount of overload in your weight-training workout?

A
adding more weight and increasing the distance over which the weight is moved
B
decreasing the weight and the speed at which the weight is moved
C
changing the type of activity you are using to give you more variety in your workout
D
keeping your current workout but dividing it up over five days instead of three

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