What molecule serves as the primary source of energy for body movement?

• Glucose

• ATP

• Oxygen

• Lactic acid

What is the main purpose of the aerobic system?

• To sustain long-duration activities

• To break down protein for fuel

• To produce short, rapid bursts of energy

• To increase body temperature

The oxidative system mainly uses which nutrients to produce ATP?

• Protein and vitamins

• Fats and carbohydrates

• Water and minerals

• Fiber and protein

Which statement best describes the glycolytic or lactic acid system?

• It is used during long-distance exercises.

• It produces ATP very slowly.

• It provides quick energy for 1–2 minutes of activity.

• It uses fats as the primary fuel source.

Which is an example of an activity that uses the aerobic system?

• 100-meter sprint

• Weightlifting

• Marathon running

• High-intensity interval training

A student who jogs for 30 minutes each morning is performing what type of exercise?

• Anaerobic

• Aerobic

• Flexibility

• Strength training

Which statement best defines vigorous physical activity?

• Increases breathing and heart rate moderately

• Requires minimal movement

• Causes rapid breathing and sweating

• Is performed while sitting

Which of the following best describes an example of MVPA?

• A. Reading books

• B. Playing basketball

• C. Watching television

• D. Sitting in class

What is the first rule before using any fitness equipment?

• Compete with others

• Skip warm-up

• Inspect for damage or safety issues

• Use it without supervision

Proper gym etiquette means:

• Leaving weights anywhere

• Wiping equipment after use

• Ignoring safety signs

• Using machines simultaneously with others