Units of Measure

How is maximum speed of an athlete quantified?

Velocity

What unit measures the lower body power produced while running?

Joules of power

How is acceleration from starting blocks measured?

Meters per second squared (m/s²)

What is measured to determine the total work for a 100 m sprint?

Measurements of work and power

What is the metric unit system?

A standardized system of measurement used to express mass, length, and volume, e.g., grams, meters, liters.

What happens to the decimal when converting larger to smaller metric units?

Move the decimal to the right.

What is the SI unit for mass?

Kilogram (Kg)

What is the SI unit for force?

Newton (N)

What is the equation for force?

F = m(a) where F is force, m is mass, and a is acceleration.

How much force is necessary to lift a 100kg weight?

Approximately 981 N (100 kg × 9.81 m/s²).

What is the formula for calculating Joules?

J = kg (m²) / s².

How much work is done against gravity if a 65 kg person climbs a 15 m high flight of stairs?

Work = mass × gravity × height (W = 65 kg × 9.81 m/s² × 15 m).

What is 1 kilopond-meter equivalent to in Joules?

1 kpm = 9.81 Joules.

What percentage of energy expenditure does the human body typically achieve?

About 20-30% efficiency.

What is the common unit for energy used in dietary measurement?

Kilocalorie (kcal).