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- 1. Multiple Choice
Which two of these forces act on parachutes?
Air Resistance
Gravity
Thrust
Kinetic Energy
- 2. Multiple Choice
Another name for air resistance is...
Buoyancy
Streamline
Gravity
Drag
- 3. Multiple Choice
The larger the surface area of the moving object, the ___________ air resistance there is.
Less
More
Longer
Quicker
- 4. Multiple Choice
What causes an object to fall faster?
Smaller surface area
Larger surface area
If it has a parachute
If it is softer
- 5. Multiple Choice
Air resistance pushes against falling
objects and __________________.
Speeds them up
Keeps them afloat
Slows them down
Spins them
- 6. Multiple Choice
The larger the parachute the ____________
Less air resistance
More surface tension
Less drag
More drag
- 7. Multiple Choice
Which has more air resistance so will move slower?
- 8. Multiple Choice
The more streamlined an object is, the...
More air resistance (moves slower)
Less air resistance (moves faster)
- 9. 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.
- 10. Multiple Choice
What is water resistance ?
friction between moving object in water
friction between moving object in air
- 11. Multiple Choice
Which of the given shapes will touch to the bottom first ??
- 12. Multiple Choice
What makes water resistance similar to surface friction ?
slows things down
increases the friction
decreases the surface area
increases the surface area
- 13. Multiple Choice
Why is it hard to walk through water?
The water is too cold.
The water pushes against you and slows you down.
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