Terminal Velocity Weightlessness Free Fall Air Resistance

Which letter is the direction of free fall for the space craft?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

An object that is free-falling is acted upon by the force of gravity alone.

• TRUE

• FALSE

Tags

NGSS.MS-PS2-4

A falling skydiver which has reached terminal velocity is considered to be in a state of free fall.

• TRUE

• FALSE

Tags

NGSS.MS-PS2-4

The more streamlined an object is, the...

• More air resistance

• Less air resistance

• Slower air resistance

• Faster air resistance

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Air resistance pushes against falling

objects and __________________.

• Speeds them up

• Keeps them afloat

• Slows them down

• Spins them

Tags

NGSS.MS-PS3-5

Which two of these forces act on parachutes?

• Air Resistance

• Gravity

• Thrust

• Kinetic Energy

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Air resistance is a force caused by...

• Water pushing against moving objects

• Air pushing against moving objects

• Gravity pushing against moving objects

• Normal force pushing against moving objects

Tags

NGSS.MS-PS3-5

What is terminal velocity?

• The maximum speed an object reaches when falling through a fluid

• The speed at which an object stops accelerating

• The speed at which an object starts accelerating

• The speed at which an object is weightless

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which of the following statements is true about weightlessness?

• It occurs when there is no gravity

• It occurs when an object is in free fall

• It occurs when an object is at rest

• It occurs when an object is moving at terminal velocity

Tags

NGSS.MS-ESS1-2

What happens to air resistance as an object falls faster?

• It decreases

• It remains constant

• It increases

• It disappears