Part 3: Movement Analysis (Revision)

____ refers to physical quantity with magnitude but no direction.

• Vector
• Magntiude
• Scalar
• Torque

Which of the following about "Velocity" is wrong

• equals to Displacement/Time taken
• possess magnitude but no direction
• its unit is m/s
• is the rate of change of displacement of an object

"No external force, no change in state of an object" implies …

• The Law of Acceleration
• Angular Acceleration
• The Action / Reaction Law
• The Law of Inertia

Moment of inertia …

• is a force that pulls an object towards the centre of the earth
• the vector produced when two or more forces act upon a single object
• .= mass × (distance from axis of rotation)2
• .= force × perpendicular distance to line of action of force

Which of the following about "Centre of gravity (CG)" is correct?

• Location of the CG is changing constantly during movement
• CG always lies within the body
• CG is at your chest level with a natural standing position
• The higher the CG, the higher the stability

Heel raise a type of …

• 1st class lever
• 2nd class lever
• 3rd class lever

The unit of "Angular Acceleration" is...

• ° / sec
• m / s
• N
• rad / sec2

Second Class Lever:

• The fulcrum lies between the effort and the load
• The load lies between the fulcrum and the effort
• The effort is between the fulcrum and the load

Take-off in high jump applies the Law of…

• Inertia
• Acceleration
• Action/Reaction

Spinning before release of discus applies the Law of …

• Inertia
• Acceleration
• Action/Reaction