Transcript Starter - DrBravophysics

Starter
Force
(newtons, N)
16
200
840
2.4
5000
Mass
(kilograms, Kg)
20
400
70
0.40
25000
Acceleration
(m/s2)
0.80
5.0
12
6.0
0.20
On the Road
L.O.:
 Work out what is the resultant force of a
vehicle travelling at constant velocity.
Define: thinking distance, breaking distance
and stopping distance.
Explain what factors can increase the
stopping distance of a vehicle.
What determines the Stopping Distance?
Velocity (m/s)
Boy jumps
into road
Time (s)
Driver
presses
breaks
Car stops
The thinking distance is the distance travelled
by the vehicle in the time it takes the driver to
react.
The breaking distance is the distance the
vehicle travels under the braking force.
Stopping distance = thinking distance +
breaking distance.
In groups discuss how to fill in this table.
Factors affecting the Factors affecting the
thinking distance
breaking distance.
Stopping distances.wmv
In groups discuss how to fill in this table.
Factors affecting the Factors affecting the
thinking distance
breaking distance.
Influence on
alcohol and drugs
Fatigue/stress
Distractions
Stopping distances.wmv
Excessive Velocity
Mass of the Car
Road Conditions
Tyre Conditions
Weather
Conditions
To do:
1)Workbook page 65.
2)Worksheet 3c
On the Road
L.O.:
 Work out what is the resultant force of a
vehicle travelling at constant velocity.
Define: thinking distance, breaking distance
and stopping distance.
Explain what factors can increase the
stopping distance of a vehicle.