TED-Ed: What on Earth is spin? - Brian Jones

The video explains the origins of wind and motion, starting from the Earth's formation. It covers two types of motion: straight-line and spin, and introduces the concept of angular momentum. The Coriolis effect is explained in the context of Earth's rotation, which influences weather patterns. The formation of Earth from a spinning cloud of dust and gas is discussed, highlighting how this spin affects day-night cycles and weather. The video concludes with an explanation of wind patterns and storm formation, emphasizing the role of Earth's spin.

What happens to an ice skater's spin when she pulls her arms in?

• She stops spinning.

• She spins faster.

• She spins slower.

• Her spin remains unchanged.

What is the Coriolis effect?

• The slowing down of spinning objects over time.

• The increase in speed of an object in straight-line motion.

• The apparent curving of moving objects due to Earth's rotation.

• The tendency of objects to move in a straight line.

Why does the Earth spin?

• Due to the influence of the Moon's gravity.

• Because of the gravitational pull of the Sun.

• Due to the initial spin of the cloud of dust and gas from which it formed.

• Because of the movement of tectonic plates.

How does the Earth's spin affect weather patterns?

• It causes the air to move in a straight line.

• It has no effect on weather patterns.

• It only affects weather at the poles.

• It causes air to curve, influencing wind patterns.

What is the ultimate source of the spin observed in hurricanes?

• The gravitational pull of the Moon.

• The Earth's inherited spin from the original dust cloud.

• The movement of ocean currents.

• The heat from the Sun.