8.7A

Seasonal variations on Earth would be significantly changed if which of the following were changed?

• The speed of rotation of Earth.

• The direction of orbit of Earth.

• The speed of rotation of the Sun.

• The angle of tilt of Earth’s axis.

Tags

NGSS.MS-ESS1-1

Which of the following would cause the seasons on Earth to change more gradually?

• Increasing the amount of time it takes Earth to orbit the Sun.

• Increasing the number of times Earth rotates on its axis per year.

• Decreasing the speed of the Moon’s orbit around Earth.

• Decreasing the amount of energy the Sun emits per year.

Tags

NGSS.MS-ESS1-1

The Sun appears to rise and set because of which of the following?

• The Sun is much larger than the Earth.

• The Earth rotates on is axis.

• The Sun’s gravity is very strong.

• The axis of the Earth is tilted.

Tags

NGSS.MS-ESS1-1

The seasons on the Earth are the result of –

• the orbit of the moon around the Earth.

• the Sun having a large gravitational pull.

• the continual rotation of Earth on its tilted axis.

• the tilt of the Earth and its orbit around the Sun.

Tags

NGSS.MS-ESS1-1

What happens to the magnetic field around a wire when the electric current through the wire increases?

• It decreases

• It remains the same

• It increases

• It reverses direction

Tags

NGSS.MS-PS2-3

Students are modeling the Earth, the Sun, and their relative motions. A basketball is used to represent the Sun, and a tennis ball is used to represent Earth. In order to accurately model the cause of day and night on the Earth, the students must –

• lift the tennis ball off the table.

• rotate the tennis ball on an axis.

• rotate the basketball on an axis.

• move the tennis ball around the basketball.

Tags

NGSS.MS-ESS1-1

Which of the following would cause the length of a day on the Earth to be shorter?

• Increasing the length of Earth’s orbit around the Sun.

• Decreasing the rate at which the moon orbits the Earth.

• Increasing the speed of the Earth’s rotation on its axis.

• Decreasing the total radiation output produced by the Sun.

The Southern Hemisphere experiences the coldest seasonal weather during what portion of the Earth’s orbit?

• When the orbital speed of the Earth is the fastest.

• During the time when the Earth passes Jupiter.

• When the South Pole tilts away from the Sun.

• During the time when both hemispheres have a full moon.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-6

The period of daylight experienced each day on every part of Earth would be shorter if which one of the following changes occurred?

• Earth had a greater diameter.

• The mass of the Sun was greater.

• Earth rotated more quickly on its axis.

• The Sun was farther away from Earth.

The speed of the rotation of Earth has the greatest effect on which of the following?

• Length of day and night

• Path of the Moon’s orbit

• Length of a year

• Path of orbit around the Sun