Biomechanics: Center of Mass and Stability

What is the center of mass in biomechanics?

• Point where the body is most unstable

• Point where the body's weight is least

• Point where the body is balanced in all directions

• Point where the body's weight is highest

How does the center of mass shift when a gymnast raises their arms?

• Moves downwards

• Shifts to the side

• Remains unchanged

• Moves upwards

What is the primary reason divers stretch their limbs forward?

• To prepare for landing

• To increase their speed

• To move the center of mass outside their body

• To look more graceful

What is the effect of raising the arms on the center of mass?

• Lowers it

• Raises it

• Shifts it to the left

• Shifts it to the right

What is the Fosbury Flop?

• A running technique

• A high jump technique

• A swimming stroke

• A type of gymnastic move

During the Fosbury Flop, how is the center of mass manipulated?

• It is lowered

• It is raised

• It remains constant

• It moves outside the body

How does the J-curve run-up affect a high jumper's center of mass?

• Lowers it significantly

• Shifts it forward

• Does not affect it

• Raises it temporarily

What factor contributes to stability by increasing contact with the ground?

• Line of gravity

• Base of support

• Mass

• Height of center of mass

How does the line of gravity affect stability?

• The higher it is, the more stable the body

• It has no effect on stability

• The more it shifts, the more stable the body

• The closer it is to the ground, the more stable the body

Which factor makes a body more stable when increased?

• Mass

• Height of the center of mass

• Base of support

• Line of gravity