Vocabulary
What is a force?
Has the greatest effect on a collision.
What is speed?
The more matter something has the more _______________it is.
What is dense?
You wear these everytime you get in a vehicle.
What are seatbelts?
This is true about the air at lower elevations.
What is more air resistance?
The amount of matter in an object.
What is mass?
The energy of motion.
What is kinetic energy?
Air that is more dense has what?
What are more air particles?
This should fit snugly and have straps to hold it in place on your head.
What is a bike helmet?
This is true about the air at higher elevations.
What is less air resistance?
The amount of something within a certain space.
What is density?
What is also true when the mass of an object is doubled in a collision.
What is: the force or energy also doubles?
This creates more air resistance.
What are more air particles?
These help to slow down the momentum of passengers in a car.
What are airbags? (or seatbelts).
True or False? Air that is less dense will have less resistance?
What is true?
Two forces on earth that will slow objects down.
What are friction and gravity?
A safer vehicle to drive in: slower or less massive?
What is slower?
True or False: Materials that are less dense, with air pockets, offer good protection in a collision?
What is true?
Spreads the force of an impact over a larger area.
What is a helmet or an airbag? *either answser is acceptable!
When there is more air resistance there is also more what?
What is force or work?
An objects mass times the speed it is traveling.
What is momentum?
This has the greatest effect on kinetic energy.
What is speed?
True or False? Anything that is very dense will protect your head in a collision.
What is false?
These are not required by law in Michigan.
What are motorcycle helmets?
True or False: Air that is more dense is at higher elevations; in the mountains.
What is false?