.

Question 1

State the other three parts of a lever system.

Answer 1

. Pivot
. Resistance
. Force

Question 2

Explain the term mechanical disadvantage.

Answer 2

Cannot lift as heavy loads with the same amount of effort as
other levers (1) due to the position of the effort and load from
the fulcrum (1)

Question 3

Explain why there is a difference in the amount of oxygen and carbon dioxide in inhaled and exhaled air whilst the long distance runner is training.

Answer 3

Oxygen is used/needed/required (1) in aerobic respiration/to
release energy (1)
CO2 is a waste product/is produced (1) during aerobic
respiration/during exercise/by the working muscles (during
exercise) (1)

Question 4

State one function of plasma.

Answer 4

Transports nutrients.

Question 5

State the meaning of the term vasoconstriction.

Answer 5

Vasoconstriction is the narrowing of blood vessels

Question 6

Stating the plane and axis for the tucked somersault.

Answer 6

Saggital and frontal

Question 7

Stating the plane and axis for the full twist.

Answer 7

Transverse and vertical