Air resistance, Free fall and Terminal velocity

TRUE or FALSE:

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

• TRUE

• FALSE

Tags

NGSS.HS-PS2-4

TRUE or FALSE:

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

What causes an object to fall faster?

• Smaller surface area

• Larger surface area

• If it has a parachute

• If it is softer

The more streamlined an object is, the...

• More air resistance

• Less air resistance

• Slower air resistance

• Faster air resistance

An object is falling downward through Earth's atmosphere. In which direction is the air resistance force?

• Down

• Up

• Around the object

• Through the object

Tags

NGSS.MS-PS2-2

Look at the pictures of the cars. Which car will have the most air resistance force acting upon it? They will be moving at the same speed.

• 
• 
• 
• All will have equal air resistance force.

Tags

NGSS.MS-ETS1-1

When a falling object stops accelerating and falls at a constant speed, it is

• fluency

• constant velocity

• acceleration

• terminal velocity

What is a parachute designed to maximize?

• Gravity

• Air Pressure

• Air Resistance

• Thrust

Air resistance pushes against falling

objects and __________________.

• Speeds them up

• Keeps them afloat

• Slows them down

• Spins them

Tags

NGSS.MS-PS2-5

What makes objects fall to the earth

• Gravity

• Wind

• Force

• Air Pressure

Tags

NGSS.MS-PS2-4