View the animation below, then complete the quiz to test your knowledge of the concept.

1	For an isometric muscle fiber contraction...
	A)	the contraction phase is the longest phase.
	B)	the relaxation phase is the longest phase.
	C)	the latent phase is the longest phase.
	D)	the distance that the muscle fiber shortens is inversely proportional to the mass of the load.
	E)	the shortening velocity of a muscle fiber is inversely proportional to the mass of the load.
2	For an isotonic muscle fiber contraction...
	A)	the muscle fiber length remains constant as the muscle tension changes.
	B)	the muscle tension remains constant as the muscle fiber length changes.
	C)	the muscle tension remains constant and the muscle fiber length remains constant as well.
	D)	the muscle tension changes and the muscle fiber length changes as well.
	E)	the muscle tension is directly proportional to the muscle fiber length.
3	For an isometric muscle fiber contraction...
	A)	the muscle fiber length remains constant as the muscle tension changes.
	B)	the muscle tension remains constant as the muscle fiber length changes.
	C)	the muscle tension remains constant and the muscle fiber length remains constant as well.
	D)	the muscle tension changes and the muscle fiber length changes as well.
	E)	the muscle tension is directly proportional to the muscle fiber length.
4	For isotonic contractions, the distance that the muscle fiber shortens is inversely proportional to the mass of the load.
	A)	True
	B)	False
5	For isotonic contractions, the shortening velocity of a muscle fiber is inversely proportional to the mass of the load.
	A)	True
	B)	False