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WorksheetsChap 1 and chap 2
Total questions: 15
Worksheet time: 45mins
Which of the following dimensions belongs in the set {force, velocity, acceleration, magnetic field}?
displacement
speed
mass
temperature
Change the unit: 1.3 X 10-2 Mgmm-3 to kgm-3.
1.3 x 108 kgm-3
1.3 x 10-11 kgm-3
1.3 x 1010 kgm-3
1.3 x 10-9 kgm-3
(a) Determine the horizontal (x-axis) and vertical (y-axis) components of each force.
(b) calculate the magnitude and direction of the resultant force.
(a)ƩFx = 336.5N , ƩFy = 125N
(b) FR = 358.97 N , Ɵ=20.38o
(a)ƩFx = 236.5N , ƩFy = 25N
(b) FR = 237.8 N , Ɵ=6.03o
(a)ƩFx = 236.5N , ƩFy = 25N
(b) FR = 237.8 N , Ɵ=83.97o
(a)ƩFx = 336.5N , ƩFy = -125N
(b) FR = 21.48 N , Ɵ=15.26o
An object moves, along a line, from point A to B to C and then back to B again as shown in the figure above. Find the magnitude of the displacement of the object.
13km
4km
12km
5km
What to units of measurement are necessary for describing speed?
displacement / time
distance / time2
distance / time
acceleration / time
A change in velocity over time is known as:
acceleration
constant speed
average speed
displacement
The gradient of the graph representing:
increase in distance
Constant Speed
Constant acceleration
Acceleration (speeding up)
What is the person doing from 5 seconds to 10 seconds?
Walking
Running
Standing Still
Walking Fast
Which graph represents zero acceleration ?
A
B
C
D
What is happening between 3 seconds and 4 seconds?
the object is moving in a negative direction.
The object is returning to its starting position.
The object is slowing to a stop.
The object is changing direction.
What is this graph showing?
Constant Speed
object is speeding up
No motion
object is slowing down
None of above are corrects.
When will something accelerate?
Only when its speed changes
When both its speed and/or direction changes
Only when its direction changes
When it moves at a steady speed
Calculate the magnitude of resultant of vector A and B.
2.65m
5.69m
6.88m
3.49m
Between which two points show moving back towards the starting position?
A-B
B-C
C-D
D-E
E-F
A train slows from 20 m/s to 10 m/s over a time period of 5 seconds. Find the acceleration
2 m/s
-2 m/s
-2 m/s2
2 m/s2
