134301
Description
Mind Map by milliewernyj17, updated more than 1 year ago
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Created by milliewernyj17
almost 11 years ago
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Car Safety
- Momentum= Mass x Velocity
- The greater the mass of an object,
the greater the velocity and the
more momentum it has
- Momentum is a vector
quantity, this is because it has
a size and direction
- The greater the mass of an object,
the greater the velocity and the
more momentum it has
- momentum before= the momentum after
- When a force acts on an
object, then this causes a
change in momentum
- Larger force=faster change
of momentum
- In a car crash, a car will have a huge
momentum as it changes very quickly.
The forces in the body are very large
and more likely to cause an injury
- Cars are protected with protective
features to slow people down in a crash.
The longer it takes for a change in
momentum, the smaller the force
- Cars are protected with protective
features to slow people down in a crash.
The longer it takes for a change in
momentum, the smaller the force
- In a car crash, a car will have a huge
momentum as it changes very quickly.
The forces in the body are very large
and more likely to cause an injury
- Larger force=faster change
of momentum
- Features in cars which slow down momentum:
- Crumple zones- front of the car
crumples on impact, increasing
the time taken for the car to stop
- Seat Belts- stretch slightly,
which increase the time taken
for the wearer (of the seatbelt)
to stop, reducing the forces
acting on the chest
- Air bags- slow you down more gradually
- Air bags- slow you down more gradually
- Bubble wrap also helps for fragile
objects; increasing time so it reduces
the forces of the object (force is smaller)
- Seat Belts- stretch slightly,
which increase the time taken
for the wearer (of the seatbelt)
to stop, reducing the forces
acting on the chest
- Crumple zones- front of the car
crumples on impact, increasing
the time taken for the car to stop
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