Give the name of another vector quantity that is not in the options to the previous question.
1
1
Pitanje 6
6.
Write the equation which links stopping distance, thinking distance and braking distance
1
1
2
Pitanje 9
9.
0
Pitanje 10
10.
move onto the next question
3
Pitanje 11
11.
0
Pitanje 12
12.
move onto the next question
2
1
Pitanje 14
14.
Write the equation which links acceleration, mass and resultant force
4
1
Pitanje 16
16.
There is a downwards force and an upwards force. How do the forces compare when the jetpack and person are stationary?
1
3
6
Pitanje 19
19.
Using the idea of forces, explain why the parachutist reaches a terminal velocity and why opening the parachute reduces the terminal velocity.
Drag the quantities into the correct group (1 mark per correct pair)
time
distance
displacement
force
energy
mass
Vector Quantities
Scalar Quantities
Pitanje 5
5.
Pitanje 7
7.
Speed affects the thinking distance and braking distance.
Name another factor that affects the thinking distance.
Pitanje 8
8.
Other than speed, name a factor that affects the braking distance of a car
Pitanje 13
13.
Calculate the magnitude of the resultant, or use you diagram to determine the magnitude.
Pitanje 15
15.
The trolley has a mass of 0.75 kg. Calculate the acceleration of the trolley just after it is released. Give the unit.
(Either type you working out or use the whiteboard space).
Pitanje 17
17.
The person weighs 700 N and the jetpack weighs 140 N. Calculate the combined mass of the person and the jetpack.Gravitational field strength = 10 N/kg
Pitanje 18
18.
Increasing the upward force to 1850 N causes the person to accelerate upwards. Calculate the acceleration of the person and the jetpack. Give the unit.
(Either type you working out or use the whiteboard space).
