KH Mid S

Which of these is responsible for changes from day to night on Earth?

• Earth’s tilt

• Earth orbiting the sun

• the moon orbiting Earth

• Earth rotating about its axis

What would happen if Earth spun on its axis faster than it does now?

• Earth would be hotter.

• A day would be shorter than 24 hours

• A year would be longer than 365 days.

• There would be more than four seasons.

Seasons are reversed in the Northern and Southern Hemispheres.

Why do the Northern and Southern Hemispheres never experience the same season at the same time?

• Seasons are longer in the Northern Hemisphere.

• Seasons are shorter in the Southern Hemisphere.

• because the Northern Hemisphere always tilts toward the sun

• because they tilt toward and away from the sun at different times of year

About how long does it take for Earth to move from point Y—its current location—to point Z?

• 12 hr

• 24 hr

• 6 months

• 1 yr

Which of these statements is correct?

• In the Northern Hemisphere it is fall, and in the Southern Hemisphere it is spring.

• In the Northern Hemisphere it is winter, and in the Southern Hemisphere it is spring.

• In the Northern Hemisphere it is spring, and in the Southern Hemisphere it is summer.

• In the Northern Hemisphere it is summer, and in the Southern Hemisphere it is winter.

Earth rotates on its axis once each 24 hours.

What is the result of Earth’s rotation?

• the seasons

• night and day

• the moon’s phases

• the length of the year

Earth is tilted on its axis.

Which of these would not exist if Earth had no tilt?

• gravity

• seasons

• lunar phases

• Earth’s rotation

Earth revolves around the sun.

How long does it take for Earth to complete one revolution?

• One day

• one week

• one month

• one year

What is an orbit?

• the turning of a planet on its axis

• the distance of a planet from the sun

• the speed at which a planet moves around the sun

• the path one object takes around another object in space

Radar uses radio waves to detect objects. It works by bouncing waves off objects to determine their location, size, and speed.

For which of the following purposes do meteorologists use Doppler radar?

• to determine the location of storms

• . to determine cloud type and humidity

• to measure average yearly precipitation amounts

• to determine the difference in temperature between two fronts