1.5 Motion

Question 1

Resistance can sometimes be a performance enhancer

Answer 1

True

Question 2

Drag forces occur

Answer 2

In the opposite direction to the motion of the object

Question 3

A hinge moment describes

Answer 3

What happens when motion is suddenly interrupted, and one end of a body is stopped or decelerated.

Question 4

Motion can occur in what direction or ways?

Answer 4

As linear, angular, general, or arrested motion.

Question 5

Isoinertial resistance

Answer 5

An external resistance which stays constant through a movement (i.e most free weight exercises)

Question 6

What is variable resistance

Answer 6

A type of external resistance which changes throughout a movement.

Question 7

What is Isokinetic resistance?

Answer 7

A type of variable resistance which maintains a constant movement velocity regardless of the force applied, allowing an athlete to maximize the resistance placed on the muscle throughout the full range of motion

Question 8

What is accommodating resistance?

Answer 8

Strictly speaking, this is the same as isokinetic resistance, as the load accommodates forces created, keeping velocity the same during a movement. However, this is commonly used to describe variable resistance which is created through the use of chains or bands which create a variable resistance.