PHYSICS - reaction time and stopping distances
0.0(0)
Studied by 0 people
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt PlayCard Sorting
1/15
Last updated 3:01 PM on 4/12/23
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
16 Terms
1
New cards
km/h --→ metres/hour
x 1000
2
New cards
km/h --→ m/s
(x1000) /3600
3
New cards
typical speed of car
31m/s
4
New cards
typical speed of walking
1\.4m/s
5
New cards
typical speed of running
3\.3m/s
6
New cards
typical speed of wind
6m/s
7
New cards
typical speed of sound
330m/s
8
New cards
what is an accelerometer?
measures acceleration in terms of g (gravity)
9
New cards
acceleration of gravity?
10m/s2
10
New cards
how can we measure human reaction times?
ruler drop test
11
New cards
typical human reaction time?
0\.25 secs
12
New cards
conservation of momentum?
momentum before collision = sum of momentum after collision.
13
New cards
units of momentum?
kgm/s
14
New cards
what contributes to the stopping distance of a vehicle?
* braking distance
* thinking distance
* thinking distance
15
New cards
factors that affect thinking distance?
* distractions
* tiredness
* drugs/alcohol
* tiredness
* drugs/alcohol
16
New cards
factors affecting braking distance
* road conditions
* condition of car
* speed of car
* condition of car
* speed of car
Note 
Flashcards (33)