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Science
9th -
12thgrade
Air resistance, Free fall and Terminal velocity
15 questions
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- 1. Multiple Choice
TRUE or FALSE:
An object that is free-falling is acted upon by the force of gravity alone.
TRUE
FALSE
- 2. Multiple Choice
TRUE or FALSE:
A falling skydiver which has reached terminal velocity is considered to be in a state of free fall.
TRUE
FALSE
- 3. Multiple Choice
What causes an object to fall faster?
Smaller surface area
Larger surface area
If it has a parachute
If it is softer
- 4. Multiple Choice
The more streamlined an object is, the...
More air resistance
Less air resistance
Slower air resistance
Faster air resistance
- 5. Multiple Choice
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
- 6. Multiple Choice
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.
- 7. Multiple Choice
When a falling object stops accelerating and falls at a constant speed, it is
fluency
constant velocity
acceleration
terminal velocity
- 8. Multiple Choice
What is a parachute designed to maximize?
Gravity
Air Pressure
Air Resistance
Thrust
- 9. Multiple Choice
Air resistance pushes against falling
objects and __________________.
Speeds them up
Keeps them afloat
Slows them down
Spins them
- 10. Multiple Choice
What makes objects fall to the earth
Gravity
Wind
Force
Air Pressure
- 11. Multiple Choice
When dropped from the same distance, which will fall to the floor faster?
- 12. Multiple Choice
Which two of these forces act on parachutes?
Air Resistance
Gravity
Thrust
Kinetic Energy
- 13. Multiple Choice
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
- 14. Multiple Choice
Air resistance is affected by...
Temperature
Speed
Surface Area
Weather
- 15. Multiple Choice
The larger the parachute the ____________
Less air resistance
More surface tension
Less drag
More drag
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