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

An airplane flies east at 400 km/hr. In which direction is the air resistance force acting upon the airplane?

• East

• West

• Up

• Down

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.

What is Air Resistance

• The force of water

• The force that opposes the motion of objects falling through the Earth's atmosphere

• A vacuum

• Terminal Velocity

If a bowling ball and a feather fell in a vacuum, which would hit the ground first

• They would hit at the same time

• The feather

• The bowling ball

• Neither

If a bowling ball and a feather fell in a vacuum, which would hit the ground first

• They would hit at the same time

• The feather

• The bowling ball

• Neither

The closer two objects are to each other

• the harder they will land
• have no gravitational force
• have a stronger gravitational force
• yep

A physical influence that acts to change the position of an object is

• force

• newton

• mass

• law

Units used to measure force are

• pounds

• newtons

• isaacs

• mass