Spin & Impact Quiz

What is spin created by?

• An eccentric force

• A central force

• A gravitational force

• A magnetic force

What generally causes spin on a ball?

• Direct impact between the ball and implement

• Oblique impact between the ball and implement or ball and ground

• Vertical impact between the ball and ground

• Horizontal impact between the ball and implement

What happens to a basketball during a bounce pass?

• It leaves the ground with backspin

• It leaves the ground with no spin

• It leaves the ground with top spin

• It leaves the ground with side spin

What does the Magnus effect explain?

• How flight paths change with spin

• How gravity affects flight paths

• How temperature affects flight paths

• How humidity affects flight paths

What happens to a ball traveling through the air with a less streamlined surface area?

• It carries more air

• It carries less air

• It travels faster

• It travels slower

What creates a disturbance when a ball travels through the air?

• The layer of air on the surface of the ball interacting with the oncoming air

• The weight of the ball

• The color of the ball

• The temperature of the ball

What is the Magnus Effect?

• The phenomenon where a spinning ball creates a pressure difference causing it to move from high to low pressure areas.

• The phenomenon where a ball moves in a straight line regardless of spin.

• The phenomenon where a ball spins in the same direction as the oncoming air.

• The phenomenon where a ball creates a vacuum around itself while spinning.

What happens to the pressure on the side of the ball spinning in opposition to the oncoming air?

• It develops a high pressure area.

• It develops a low pressure area.

• It remains the same.

• It creates a vacuum.

In the Magnus Effect, what happens to the air pressure on the side of the ball moving with the oncoming air?

• It becomes a high-pressure zone.

• It becomes a low-pressure zone.

• It remains undisturbed.

• It becomes a vacuum.

According to the diagram, what is the direction of airflow relative to the ball?

• Parallel to the ball's surface.

• Perpendicular to the ball's surface.

• Opposite to the ball's spin direction.

• In the same direction as the ball's spin.