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Question 01

4 points

True or False? Select the correct answer for each statement. Each correct answer earns 1 point.

All answers are found in the Applied Sciences section of Module 3. Read each statement carefully — some contain subtle reversals of the correct information.

1) Damage to the cerebellum can lead to a loss of coordination of motor movement.

True False

2) The inner ear is composed of two parts: the cochlea for balance and the vestibular organ for hearing.

True False

3) The cerebellum is located at the front of the brain.

True False

4) Tactile receptors pick up sensations like pressure, vibration and texture through touch.

True False

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Question 02

1 point

Which of the following best describes the difference between static and dynamic balance, and correctly lists the three peripheral systems the brain uses to maintain balance while roller skating?

Think about what "static" and "dynamic" each mean in plain English first, then consider which three body systems feed balance information to the brain during movement.

Guidance

One system involves what you see. One involves what your inner ear detects. One involves feedback from your joints and feet. Only one answer correctly names all three alongside the right definitions of static and dynamic balance.

Static balance is staying stable while moving; dynamic balance is staying stable while still. The brain relies on heart rate, lung capacity, and muscle strength to keep the skater upright. Static balance is balancing on one foot; dynamic balance is balancing on two feet. The brain relies only on vision (watching other skaters), hearing (listening to the music), and touch (feeling the wind). Static balance is staying stable while still; dynamic balance is staying stable while moving. The brain relies on vision (tracking the floor/surroundings), the vestibular system (inner ear detecting head movement), and proprioception (feet/joints feeling the skates and ground). Static balance is involuntary reflexes; dynamic balance is voluntary movements. The brain relies on the spinal cord, reflex arcs, and pain receptors in the knees to stop a fall. Static balance means skating in a straight line; dynamic balance means skating in circles. The brain relies on spatial awareness, depth perception, and peripheral vision to avoid obstacles.

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Question 03

4 points

Complete both sentences using the correct terminology from the manual. Then explain which skate stance offers the most stability for a complete beginner and why — your explanation must reference both Centre of Gravity (COG) and Base of Support (BOS).

The COG/BOS section includes diagrams of a skater in balance and losing balance. The most stable stance for a beginner is named in the manual with a clear reason.

Guidance

Think about what happens to balance when COG moves inside versus outside the base of support. Then consider what a wide stance does to the BOS and why that helps a beginner on skates.

1. When COG falls within BOS, a person:

2. When COG falls outside BOS, a person:

3. The most stable stance for a beginner is: because

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Question 04

8 points

Match the RollerFitness exercises to the correct planes of movement. Drag each exercise into the plane where it belongs. Each exercise belongs to one plane — but each plane may have more than one exercise.

Think about the direction of the primary movement. Sagittal = forward/back. Frontal = side to side. Transverse = rotation or twisting.

Guidance

Sagittal plane: movements that go forward and backward, or flex and extend along the midline. Frontal plane: movements that go side to side, or abduct and adduct away from the midline. Transverse plane: movements that rotate or twist around a vertical axis. Drag each exercise chip into the correct drop zone. You can move chips between zones if you change your mind. All 8 exercises must be placed before this question is marked complete.

Exercises — drag each into the correct plane below

Squat

Bicep Flexion

Parallel Glide

Pivot Turns

Plank Tucks

Side Lying Leg Raise

Oblique Crunch Heel Taps

Side Steps

Sagittal Plane Forward & backward movements

Drop exercises here

Frontal Plane Side to side movements

Drop exercises here

Transverse Plane Rotational movements

Drop exercises here

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Question 05

1 point

Which statement correctly describes Newton's Third Law during a roller skating push-off and identifies two key differences between walking and roller skating gait?

Newton's Third Law is about equal and opposite reactions. For the gait comparison, think about glide phase and how long the foot stays in contact with the ground compared to walking.

Guidance

The law states that every action has an equal and opposite reaction — identify which direction the skater pushes and what the ground does in response. For gait, consider what roller skating has that walking does not (the glide), and how foot-ground contact differs.

During push-off, only the skater exerts a force and no reaction force occurs; roller skating has no glide phase and more foot-ground contact than walking. During push-off, the skater pushes forward on the ground and the ground pushes the skater backward; roller skating and walking have identical gait phases. During push-off, the skater pushes backward on the ground and the ground pushes the skater forward; roller skating has a longer glide phase and less time with the foot fixed on the ground than walking. During push-off, the skater pushes downward on the ground and the ground pushes downward on the skater; walking and roller skating differ only in speed.

The Applied Sciences of Skating