Gr 12 Biomechanics and sports

Newton's second law of motion is ...

• Law of acceleration

• Law of inertia

• Law of action and reaction

• None of these

The stopping of a rolling ball in a field is an example of which law?

• Law of inertia

• Law of acceleration

• Law of action and reaction

• Law of direction

The force created by two solid surfaces is called ...

• Speed

• Friction

• Both (a) and (b)

• None of these

What does the gymnast use on his hands to increase friction?

• Liquid

• Powder

• cloth

• none of these

A motion that pulls a body part away from the midline of the body is...

• Abduction

• adduction

• distance

• extension

Acceleration runs are used to improve.........

• Strength

• Endurance

• Speed

• Flexibility

When the angle between the two bones decreases, it is termed as ............

• Flexion

• Extention

• Abduction

• Adduction