8.7C Ocean Tides (Pre)

Which of the following forces creates the tides on Earth?

• Magnetic

• Electrostatic

• Gravitational

• Frictional

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Tides are the result of forces exerted on Earth’s oceans mostly by which celestial body?

• The Sun

• Jupiter

• The Moon

• Venus

Students were shown a diagram of the Sun, the Moon and Earth with the Moon at four locations in its orbit around Earth (labeled W, X, Y and Z). The students were asked to predict when tides would be the greatest. Which student made the most accurate prediction?

• Student 1

• Student 2

• Student 3

• Student 4

Tags

NGSS.MS-ESS1-1

Which statement regarding the relationship of the Sun, Moon, and ocean tides is correct?

• Ocean tides are highest when there is a full moon because the Sun, Moon, and Earth are in alignment.

• Ocean tides are highest when there is a quarter moon because the Sun, Moon, and Earth are at 90^oangles.

• Ocean tides are lowest when there is a new moon because the Sun, Moon, and Earth are in alignment.

• Ocean tides are at their lowest when there is a full moon because the Sun, Earth, and Moon are in alignment.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-4

A student built a model of the Earth, Sun, and Moon system using the objects pictured. If the student wants to model the positions of the Sun, Earth, and Moon during the lowest tides, how should the student arrange these objects?

• Place the basketball between the baseball and the golf ball in a straight line.

• Place the baseball between the basketball and the golf ball in a straight line.

• Place the baseball and the basketball in a straight line and then place the golf ball at a 90°angle.

• Place the golf ball and the baseball at 45°angles on either side of the basketball.

Tags

NGSS.MS-ESS1-1