1.4 Biomechanical Terms And Concepts

Question 1

An eccentric force describes

Answer 1

A force where the line of action does not pass through the center of mass.

Question 2

What best defines mass

Answer 2

The amount of substance or matter a body possesses

Question 3

Gravity refers to the acceleration that earth creates to objects near to, or on its surface, with a downward force of 9.82 m/s2. Newton called gravity a centripetal force. Which definition best describes this type of force?

Answer 3

A force that makes a body follow a curved path

Question 4

What affects an athlete’s stability?

Answer 4

1. The horizontal distance between their CoM and the pivoting edge
2. The height of their CoM
3. Their base of support
4. Their weight

Question 5

Can humans have a Center of Mass that exists outside their body?

Answer 5

Yes

Question 6

A force that opposes or impedes the motion of the body in question is called:

Answer 6

Friction

Question 7

Inertia refers to a body or object’s tendency to continue to do whatever it was doing. The greater the mass of a body or object the more inertia, or resistance to change it has. True or False?

Answer 7

True