ATA ATA Bow Tech Bow Mechanics & Physics 2 â Questions and Answers
Question 1: What is 'draw force curve' in archery?
- A graph showing the relationship between draw length and draw weight throughout the draw cycle (Correct answer)
- The shape of the bow limb under stress
- The path an arrow follows in flight
- The curvature of the bowstring
Correct answer: A graph showing the relationship between draw length and draw weight throughout the draw cycle
The draw force curve illustrates how peak weight builds and then decreases at let-off as the shooter pulls the bow to full draw.
Question 2: How does increasing draw weight affect kinetic energy delivered to the arrow?
- Higher draw weight increases kinetic energy, improving penetration (Correct answer)
- Higher draw weight decreases kinetic energy
- Draw weight has no effect on kinetic energy
- Kinetic energy is only affected by arrow length
Correct answer: Higher draw weight increases kinetic energy, improving penetration
Kinetic energy (œmv²) increases with arrow speed, which rises with higher draw weight, resulting in deeper penetration on game.
Question 3: What is 'valley' in the context of a compound bow's draw cycle?
- The point in the draw cycle where let-off is achieved and holding weight is at its lowest (Correct answer)
- The lowest point of the bow riser
- The dip in the arrow shelf
- The gap between the cable guard and cables
Correct answer: The point in the draw cycle where let-off is achieved and holding weight is at its lowest
The valley is the comfortable holding zone at full draw where the cam has rotated through peak weight and let-off is engaged.
Question 4: Arrow spine refers to which property of an arrow?
- The stiffness or resistance to bending under a given load (Correct answer)
- The length of the arrow from nock to tip
- The weight of the arrowhead
- The diameter of the arrow shaft
Correct answer: The stiffness or resistance to bending under a given load
Spine is the standardized measure of an arrow's lateral stiffness, critical for matching arrows to a specific bow's draw weight and length.
Question 5: What physical phenomenon causes an arrow to bend and oscillate as it leaves the bow?
- Archer's paradox (Correct answer)
- String torque
- Cam lean
- Peep rotation
Correct answer: Archer's paradox
Archer's paradox is the bending and oscillation of the arrow shaft as it navigates around the riser during the power stroke.
Question 6: What is the primary purpose of a bow stabilizer?
- To reduce vibration and rotational torque, improving balance and accuracy (Correct answer)
- To increase arrow speed
- To adjust the draw length
- To protect the bow limbs during transport
Correct answer: To reduce vibration and rotational torque, improving balance and accuracy
Stabilizers add forward weight and dampen vibration, reducing bow movement at the shot for improved accuracy.
ATA ATA Bow Tech Bow Mechanics & Physics 2
What is 'draw force curve' in archery?