IB SEHS Topic 6

Which is a performance-related (skill-related) fitness component?

• Body composition

• Aerobic capacity

• Reaction time

• Muscular endurance

Which of the following represents the OMNI scale of perceived exertion?

• 6 (no exertion at all) – 20 (maximal exertion)

• 1 (no exertion at all) – 20 (maximal exertion)

• 1 (very, very easy) – 10 (extremely hard)

• 0 (not tired at all) – 10 (very, very tired)

What do error bars represent?

• The value of the group mean

• A correlation between two variables

• The independent variable

• The standard deviation

Tags

NGSS.HS-LS2-2

What percentage of data is normally distributed within ± 2 standard deviations of the mean?

• 99 %

• 95 %

• 50 %

• 68 %

A 200 m runner performs three time trials. What is the mean time achieved in seconds?

Trial 1 = 20.4 s

Trial 2 = 20.8 s

Trial 3 = 20.6 s

• 20.5 s

• 20.6 s

• 20.7 s

• 20.8 s

Which term describes a test that measures what it is designed to measure?

• Reliability

• Accuracy

• Validity

• Specificity

Which are valid tests for muscle endurance?

I Standing broad jump

II Maximum sit-ups

III Flexed arm hang

• I and II only

• I and III only

• I, II and III

• II and III only

How is power best described?

• A combination of force and speed

• A maximum force that can be exerted once only

• The ability to exert a force over a period of time

• The ability to put body parts into motion quickly

Which set of results shows the greatest variability?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1

What is the coefficient of variation?

• The ratio of the median to the mean expressed as a percentage

• The ratio of the mode to the mean expressed as a percentage

• The ratio of the standard deviation to the mean expressed as a percentage

• The ratio of the range to the mean expressed as a percentage