Freefall

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

Tags

NGSS.HS-PS2-4

While an object is travelling upwards it's acceleration is

• upwards
• downwards

Tags

NGSS.HS-PS2-1

While an object is travelling downwards, it's acceleration is

• upwards
• downwards

Tags

NGSS.HS-PS2-1

When an object gets to it's maximum height it's acceleration

• changes direction
• stays upwards
• stays downwards

Tags

NGSS.HS-PS2-1

Freefall only applies to objects falling downwards

• True
• False

You are in a room with air.  You drop a feather and a rubber ball from the same position at the same time.  Which object impacts the ground first?

• Feather
• Rubber ball
• Both impact at the same time
• Both float away.

Tags

NGSS.HS-PS2-1

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

• True
• False

Tags

NGSS.MS-PS2-4

What is the value of acceleration in Earth's gravity field?

• 9.80 m/s²
• 1.62 m/s²
• 3.70 m/s²
• 24.9 m/s²

Tags

NGSS.HS-PS2-4

You are in a room with no air. You are dead because there is no air. You drop and a feather falls from the same position at the same time. Which object impacts the ground first?

• Feather

• You

• Both impact at the same time

• Both float away.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

Objects that are only under the influence of gravity are considered to be  ____

• in freefall
• flying
• in freefall only if they are moving downwards

Tags

NGSS.HS-PS2-4