Which feature of a human body acts as the fulcrum in all lever systems?
Muscle
Long bone
Joint
How many classifications of lever systems are there?
Four
Five
Three
In which position will the fulcrum be in relation to the effort and load in a first class lever system?
On the left
In the middle
On the right
What type of lever, useful for overcoming large loads, can be found at the ankle when a basketball player jumps for a rebound?
First class lever
Second class lever
Third class lever
Which muscle contracts and acts as the effort during elbow flexion?
Triceps
Deltoid
Biceps
What term defines the use of a lever to overcome a large load with relatively little effort?
Mechanical disadvantage
Mechanical advantage
Resistance arm
Which plane of the human body runs from side to side and separates the human body into front and back?
Frontal
Sagittal
Transverse
When a gymnast performs a forward roll, which axis are they rotating around?
Longitudinal
Which class of lever has the best mechanical advantage?
Which axis, passing from side to side of the body, is rotated around during a back somersault on the trampoline?