Astronomy #7 Gravity

Define mass.

• how much space an object takes up

• how much matter is in an object

• the dimensions of an object

• how heavy an object is

The amount of mass in a given volume is known as...

• weight

• length

• resistance

• density

Which of the following is true about mass?

• An object with more mass is easier to get moving

• An object with less mass is harder to get moving

• Objects with larger masses resist change less than objects with smaller masses

• Objects with smaller masses resist change less than objects with larger masses

Tags

NGSS.MS-PS2-2

Gravity depends on 

• the volume of the two objects and the distance between them

• the mass of the two objects and the distance between them

• just the distance between the two objects

• the density of the two objects only

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Since Gravity is an attractive force, which of the following is NOT true?

• Gravity really only works on the surface of a planet

• Gravity accelerates an object as it falls

• It can only draw things in, not repel them

• When objects fall they get faster the longer they fall

Tags

NGSS.MS-PS3-5

When objects are free to move under the effects of gravity, we say they are in_________.

• stasis

• inertia

• orbit

• escape velocity

Kepler realized that planets orbit the sun in a ________.

• perfect circle

• ellipse

• parabola

• hyperbola

Tags

NGSS.HS-ESS1-4

The rate of speed needed for an object to leave its orbit is known as___________

• angular momentum

• escape velocity

• terminal velocity

• thermal acceleration

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

Weight is not  just the force of gravity on mass, but also______________

• how a surface repels an object

• how the object is affected by light waves

• how hard a surface pushes back on a mass

• how the velocity of an object changes during a fall

Tags

NGSS.MS-PS2-4

What are the particles of light, that have no mass, but are affected by gravity?

• Protons

• Neutrons

• Photons

• Solarites

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3