U4L1: The Role of Gravity

What is gravity?

• A) A force of attraction

• B) A force of repulsion

• C) A type of energy

• D) A type of matter

Tags

NGSS.MS-PS2-4

The strength of gravity is affected by the total mass of the objects and the ______ between them.

• distance

• speed

• temperature

• color

Tags

NGSS.MS-PS2-4

True or False: The pull of gravity decreases when the total mass of the two objects decreases or they are further apart.

• True

• False

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-2

Every object that has mass experiences a (a)   pull.

Tags

NGSS.MS-PS2-4

The Moon, the Earth’s closest neighbor, is greatly affected by Earth’s gravity. Moons orbit planets for the same reason that planets orbit the Sun - because of _________.

• gravity.

• magnetism.

• electricity.

• friction.

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

On the Moon, you could throw a ball about how many times higher than on Earth?

• Two times

• Four times

• Six times

• Ten times

Earth's water bulges due to the Moon's gravitational force at:

• the equator

• the poles

• the side facing the Moon and the opposite side

• only the side facing the Moon

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-1

What happens to the water level where the bulge is not present?

• The water level rises

• The water level falls

• The water level remains the same

• The water level fluctuates

Tags

NGSS.MS-ESS2-4

The changing tides as the Moon travels around the Earth are caused by:

• The gravitational pull of the Moon and the Sun

• The rotation of the Earth

• The distance of the Moon from the Earth

• The phases of the Moon

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

A meteor appears as a ______ in the sky.

• bright streak

• cloud

• shadow

• dark spot