Gravity

This FORCE pulls things.  It PULLS things into orbit around the sun. 

• Newton

• gravity

• weight

• path

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

If you throw a baseball straight up, what is its velocity at the highest point?

• 9.8 m/s²

• 9.8 m/s

• 0 m/s²

• 0 m/s

The more mass an object has, the faster it will fall.

• True

• False

What is the horizontal acceleration of a projectile?

• 0 m/s²

• 9.8 m/s²

What is the vertical acceleration of a projectile?

• 0 m/s²

• 9.8 m/s²

An object is shot from the ground (at 25 m/s) at 25 degrees and 65 degrees.  Which is in the air for longer? (assume no air resistance)

• 25 degrees

• 65 degrees

• same for both

A 5 kg mass and a 10 kg mass are launched horizontally from the same height. Which hits the ground first? (Neglect air resistance)

• The 5 kg mass

• The 10 kg mass

• They will hit at the same time

• It depends on the launch velocity

Which of the following would NOT be considered a projectile? 

• a cannonball thrown straight up

• a cannon ball rolling down a slope

• a cannonball rolling off a table

• a cannonball thrown in the air

A horse gallops around a circular arena.  The centripetal force on the horse is ___.

• directed outward

• tension

• directed toward the center of the arena

• 9.8 N

Tags

NGSS.MS-PS2-2

________________ is acceleration in a circular motion.

• Centrifugal acceleration

• Circular acceleration

• Spherical Acceleration

• Centripetal acceleration