What is the branch of science that deals with forces and their effects?

• Biology

• Chemistry

• Mechanics

• Physics

What is biomechanics primarily concerned with?

• Chemical reactions in the body

• Forces acting on the musculoskeletal system

• Nervous system functions

• Digestive processes

What does external biomechanics describe?

• Nervous system responses

• Chemical forces in the body

• External forces on body segments

• Internal forces generated by muscles

What is tension in biomechanics?

• A twisting force

• A pulling force

• A bending force

• A pushing force

What does compression refer to?

• Twisting forces

• Pulling forces

• Unaligned forces

• Balanced inward forces

What are shear forces?

• Forces that compress materials

• Forces that bend structures

• Forces acting in the same direction

• Forces acting in opposite directions

What does bending characterize?

• The inward pushing forces

• The pulling force on a rope

• The behavior of a slender structural element

• The twisting of an object

What is torsion?

• The compression of a material

• The bending of a beam

• The pulling of a rope

• The twisting of an object

Which of the following is NOT a principle of internal forces?

• Compression

• Tension

• Bending

• Friction

What is the effect of internal biomechanics?

• External forces on the body

• Nervous system responses

• Muscle forces and their effects

• Chemical reactions in muscles