EXSC 540 LIBERTY UNIVERSITY PRACTICE MATERIAL Quiz Biomechanics of Resistance Training 2025.docx

Quiz: Biomechanics of Resistance Training

Instructions The quiz:

questions.

Submit this assignment by 11:59 p.m. (ET) on Sunday of Module 2: Week 2. Attempt History

Attempt Time Score

LATEST Attempt 1 Time:31 minutes Score:120 out of 120

Question 2 4 / 4 pts

According to the power-velocity relationship, the greatest mechanical power output is produced

when the muscle is shortening at a velocity that is what percent of maximum.

30%

Question 3 4 / 4 pts

True or False? Stability of a body is only affected by the size of the base of support and the mass

of the body.

Question 5 4 / 4 pts

Training machines that use the resistance produced when fluid is forced through a small

aperture are called ____________ machines.

Hydraulic

Question 6 4 / 4 pts

True or False? The force that a muscle can exert increases with increasing speed of shortening.

False

Question 8 4 / 4 pts

True or False? The effectiveness of a muscle's tension is greatest when the muscle's angle of

attachment is greater than 90 degrees to the bone on which it pulls.

False

Question 9 4 / 4 pts

What type of muscle action lengthens while the muscle is developing tension?

eccentric

False

Question 12 4 / 4 pts

True or False? The center of gravity is an anatomical landmark that is fixed at one point in the

body.

False

Question 13 4 / 4 pts

____________ is that state of a system which is not changing speed or direction.

newtons

Question 15 4 / 4 pts

Momentum can best be defined as:

Question 16 4 / 4 pts

Muscle can generate more tension during ______ contraction than during concentric

contraction.

2,000 N

Question 18 4 / 4 pts

Explain the arrangement of forces in a third-class lever?

In a third class lever the effort is in the middle with the fulcrum on one side and the resistance

on the other.

Question 19 4 / 4 pts

The point at which the strength curve and resistance curve converge is called the

_____________.

amount of the force is dependent on the nature of the two surfaces in contact.

Question 21 4 / 4 pts

Which of the following is an example of a wheel-axle machine in the musculoskeletal system?

Question 22 4 / 4 pts

What does the symbol "g" represent?

gravitational acceleration

Question 23

Explain the difference between an ascending and descending strength curve.

An ascending strength curve is one in which the force capability increases from the start to the

end of the concentric phase. A descending strength curve is the opposite with he force

capability being the greatest at the start of the concentric phase and decreasing throughout the

concentric phase.

Question 25 4 / 4 pts

The force produced because of the enormous size of the planet Earth attracting all objects

around it is called ____________.

Question 27

The position of the gravity line relative to the edge of the base will determine how _______ the

Stable

Question 28 4 / 4 pts

Which class of lever is the biceps muscle flexing the elbow joint against resistance applied to the

hand?

third class

Question 29 4 / 4 pts

True or False? The “line of resistance” in weight training is always directly downward and cannot

be altered.